Choosing or Challenging Venue in a Patent Case: A Practical Guide

The envelope reaches a 70-person software company in Boise on a Tuesday. The complaint is from a court in Marshall, Texas, a town nobody in the building has visited. It says the company "has a regular and established place of business" in the Eastern District of Texas. The general counsel asks the head of people operations whether that could be true. There is a long pause. "Well," she says, "we hired three people in Plano during the pandemic, and I think we pay for their home internet. And we did send one of them a rack of test phones."

That pause is where many patent venue fights begin, and the next three weeks can decide where the case will be tried. On the other side, the patent owner's lawyer has spent a month on job boards, state corporate filings, and the defendant's careers page, because a venue allegation without facts is now a motion waiting to be granted, and a venue win can still be undone by a transfer motion. Each side has a sequence to follow. This guide lays out both.

The doctrine itself, including the history and close readings of the cases, is in the companion Patent Venue After TC Heartland: Regular and Established Places of Business, Foreign Defendants, and Transfer. Here the concern is what to do and when.

The short answer

• For a patent owner: identify every defendant entity, list where each resides, look for a real physical place staffed by the defendant's own people, plead those facts specifically, and test the forum against a likely § 1404(a) motion before filing.
• For a defendant: do not answer, stipulate carelessly, or file any Rule 12 motion until someone has checked venue. Audit the footprint under privilege in the first days. Raise improper venue in the first Rule 12 motion or the answer, and combine it with any other Rule 12(b)(2) through (5) defenses.
• Separate the two questions. Improper venue under 28 U.S.C. § 1400(b) and § 1406(a) is about whether the case may be there at all, and the plaintiff has the burden. Convenience transfer under § 1404(a) assumes the case may be there, and the movant has the burden.
• File transfer motions early and prove them with specifics. Name witnesses, what they know, and where they and the evidence actually are.
• Treat mandamus as a limited tool. A § 1404(a) denial is a realistic candidate if the record shows a strong imbalance. A § 1406 denial is reviewable on mandamus only when it raises a basic, recurring legal question, and otherwise waits for appeal.

The timeline at a glance

The response deadline is ordinarily 21 days after service, or 60 days after the request was sent if service was waived, under Rule 12 and Rule 4. For what happens if that date has slipped, see Recovering From a Missed Federal Court Deadline: A Practical Guide.

Part one: choosing a forum as the patent owner

Step 1: Build the entity map

Venue is analyzed defendant by defendant. Andra Group, LP v. Victoria's Secret Stores, LLC, 6 F.4th 1283 (Fed. Cir. 2021), shows the danger of treating a brand as one company. There, the company operating the stores in Texas was not the one running the accused website, and only the store company had a place in the district.

For each potential defendant, record the state of incorporation or organization, the principal place of business, the registered office, the parent and affiliates, and which entity actually does the accused activity. Sources include secretary of state records, annual reports, SEC filings (the properties and subsidiaries sections of a Form 10-K are especially useful), product labels, website terms of service, FCC filings, and import records.

Who makes, sells, and operates the accused thing matters more than whose logo it carries. If the accused technology is on a website, find out who runs the website. Corporate affiliates generally do not lend each other their places of business unless corporate separateness was not maintained, and disregarding the corporate form is a demanding showing. Celgene Corp. v. Mylan Pharmaceuticals Inc., 17 F.4th 1111 (Fed. Cir. 2021).

Step 2: List where each defendant resides

A domestic corporation resides only in its state of incorporation. TC Heartland LLC v. Kraft Foods Group Brands LLC, 581 U.S. 258 (2017). In a state with more than one district, it resides only in the district of its principal place of business in that state, or failing that, its registered office. In re BigCommerce, Inc., 890 F.3d 978 (Fed. Cir. 2018). That produces one safe forum for each domestic defendant, which is immune from a § 1406 challenge. Delaware is often that forum, and it carries its own considerations, discussed below.

TC Heartland reserved the treatment of unincorporated entities. If the defendant is an LLC, its state of organization is the working assumption, but check local decisions.

Step 3: Look for a real place, with real people

If you want a district other than home, you must show an act of infringement there and a regular and established place of business there. Three requirements come from In re Cray Inc., 871 F.3d 1355 (Fed. Cir. 2017): a physical place in the district, that is regular and established, and that is the defendant's. A fourth point comes from In re Google LLC, 949 F.3d 1338 (Fed. Cir. 2020): an employee or agent of the defendant must regularly conduct the defendant's business at that place.

Public research that often pays off:

• The defendant's "locations" and "contact us" pages, including archived versions. The Internet Archive can show what the page said before and at filing.
• Job postings and careers pages. Look for language requiring residence in a metropolitan area, or describing a local office or lab. A single undated posting is weak, as Celgene shows, so collect dated copies with entity names.
• LinkedIn and conference bios can suggest where employees are, but will not carry the burden alone. Celgene called such evidence too speculative.
• State business filings, local tax and property records, building permits, and landlord announcements.
• Equipment and supply. Service centers, repair depots, training facilities, and customer support sites can all qualify if they are the defendant's own.
• Government contracts and customer press releases, which may describe on-site support staff.
• Physical inspection. Sending someone to look at the sign on the door costs little and is often the best evidence you can have. Avoid contact with represented parties.

Then sort what you find.

Step 4: Check the acts of infringement

Infringement need not be proved at the venue stage, because "the issue of infringement is not reached on the merits in considering venue requirements." In re Cordis Corp., 769 F.2d 733 (Fed. Cir. 1985). You still need a good-faith allegation of an act in the district.

Apparatus claims are straightforward if the product is sold in the district. Method claims are the problem. Some judges in the Eastern and Western Districts of Texas accept that performing one step in the district is enough, relying on SEVEN Networks, LLC v. Google LLC, 315 F. Supp. 3d 933 (E.D. Tex. 2018). At least one Eastern District judge has required all steps, in AML IP, LLC v. Bath & Body Works Direct, Inc., 2024 WL 3825242 (E.D. Tex. Aug. 13, 2024), drawing on NTP, Inc. v. Research In Motion, Ltd., 418 F.3d 1282 (Fed. Cir. 2005). The Federal Circuit refused to resolve the split on mandamus and denied rehearing en banc in In re Comcast Cable Communications, LLC, No. 2026-104 (Fed. Cir. Dec. 9, 2025) (nonprecedential), reh'g en banc denied (Feb. 25, 2026).

If the case rests only on method claims performed partly elsewhere, you are carrying appellate risk into trial. Add apparatus or system claims if they are genuinely available. If not, allege as much of the method in the district as the facts support, and explain to your client that the venue ruling could be reversed after a verdict. A reversal of that kind wastes the trial and restarts the case in another court.

Step 5: Decide what to do with foreign entities

A foreign corporation has no venue protection. In re HTC Corp., 889 F.3d 1349 (Fed. Cir. 2018). That gives a patent owner real choice, subject to personal jurisdiction, including under Rule 4(k)(2) where the defendant is not subject to jurisdiction in any state. Synthes (U.S.A.) v. G.M. Dos Reis Jr. Ind. Com. de Equip. Medico, 563 F.3d 1285 (Fed. Cir. 2009).

Weigh the following before suing only a foreign parent in your preferred forum:

• Service. Serving abroad under Rule 4(f) and 4(h)(2), for example through the Hague Convention, can take months. Budget for it.
• Personal jurisdiction. Expect a Rule 12(b)(2) motion and jurisdictional discovery. See Personal Jurisdiction Over Online and Foreign Defendants: From Zippo to Ford Motor.
• The subsidiary. Dropping the American subsidiary may simplify venue but can complicate discovery, witness access, and collection. In HTC, the plaintiffs dropped the domestic subsidiary and pressed on against the Taiwanese parent.
• Transfer. The foreign parent can move under § 1404(a) to a district where the action might have been brought, which, for a defendant with no venue limits, can be broad.

Step 6: Compare forums honestly

No table can tell you which judge to pick, and any data about time to trial or win rates goes stale. Use a current docket analytics source and treat the numbers as rough. The categories that matter are these.

Step 7: Run the transfer motion against yourself

Suppose you win on § 1400(b). The defendant will next argue convenience. Before filing, draft its motion in outline. Ask what is in the forum that relates to this case. Under In re Apple Inc., 979 F.3d 1332 (Fed. Cir. 2020), and In re Juniper Networks, Inc., 14 F.4th 1313 (Fed. Cir. 2021), a defendant's general presence does not establish local interest, and a plaintiff's new office with few employees counts for little. In re Google LLC, No. 2026-157 (Fed. Cir. Oct. 6, 2026) (nonprecedential), ordered a case to California where the only Texas tie was testing unconnected to the accused functions.

What does help is a forum connection with substance: engineers in the district who worked on the accused feature, in-district customers whose use supports indirect infringement, third-party witnesses within subpoena range, or real, older company operations of the plaintiff. In Monolithic Power, the court declined to disturb a denial of transfer where the Texas forum had several of the defendant's customers and could reach third-party witnesses. Prior litigation of the same patent before the same court can also count: In re Vistaprint Ltd., 628 F.3d 1342 (Fed. Cir. 2010), left a denial of transfer in place on that basis, though the Federal Circuit has since discounted incremental gains in In re Google LLC, 58 F.4th 1379 (Fed. Cir. 2023).

Do not manufacture ties. Moving documents to a Texas lawyer's office, forming a state LLC, or carving up geographic rights all backfired in In re Hoffmann-La Roche Inc., 587 F.3d 1333 (Fed. Cir. 2009), and In re Samsung Electronics Co., 2 F.4th 1371 (Fed. Cir. 2021), where the court said it was "not bound by a plaintiff's efforts to manipulate venue." These moves also taint the rest of the record.

If the patent owner does not compete in the market, do not build a case around a faster trial. Google (2023) held it a clear abuse of discretion to give that factor weight on such a record.

Step 8: Plead venue with facts

Westech Aerosol Corp. v. 3M Co., 927 F.3d 1378 (Fed. Cir. 2019), holds that parroting the statute fails, and the plaintiff there had already been warned about Rule 11. Name the place, the entity, the people, and the activity. For general pleading technique, see Drafting a Complaint That Survives a Motion to Dismiss.

Sample allegation:

Venue is proper in this District under 28 U.S.C. § 1400(b). Defendant [Entity] is a [State] corporation that has committed acts of infringement in this District by [selling the Accused Product to customers including [name] in [city] / performing [describe] at [location]], as set out in paragraphs [__]. [Entity] has a regular and established place of business at [address], [city], [state], in this District. [Entity] [leases] that facility, identifies it as an [Entity] location on its website at [URL, as captured on date], and displays its name on the [door / building directory]. On information and belief, formed after [describe reasonable investigation], at least [number] [Entity] employees, including [role(s)], work regularly at that location performing [sales, service, engineering] for [Entity].

For a foreign defendant:

Defendant [Foreign Entity] is a corporation organized under the laws of [country] with its principal place of business in [city, country]. Venue is proper in this District as to [Foreign Entity] because a defendant not resident in the United States may be sued in any judicial district. 28 U.S.C. § 1391(c)(3); In re HTC Corp., 889 F.3d 1349 (Fed. Cir. 2018).

Add personal jurisdiction allegations separately for each defendant, since venue does not supply them. Section 1694 allows service on an agent conducting business at the regular and established place, which can be a convenient route when a nonresident has a local office.

Step 9: Plan the multi-defendant structure

35 U.S.C. § 299 limits joinder of unrelated accused infringers to claims involving the same transaction and the same accused product or process, and it says allegations that each defendant infringes the same patent are not enough. Separate suits against separate defendants in the same court can sometimes be coordinated for pretrial purposes. Defendants may push back with Rule 21 severance, and if your suit includes resellers, expect the customer-suit argument under In re Nintendo of America, Inc., 756 F.3d 1363 (Fed. Cir. 2014), and Katz v. Lear Siegler, Inc., 909 F.2d 1459 (Fed. Cir. 1990).

Hatch-Waxman plaintiffs have a separate rulebook. After Valeant Pharmaceuticals North America LLC v. Mylan Pharmaceuticals Inc., 978 F.3d 1374 (Fed. Cir. 2020), and Celgene, a domestic ANDA filer's acts of infringement occur only where actions related to submission occur, and § 299 does not apply. Find out where the filing was prepared and consider a protective suit in a second district. Running an ANDA Litigation: A Practical Guide covers case management.

Worked scenario: a robotics company picks a court

Suppose Tern Valley Robotics, a small Michigan maker of warehouse picking arms with a patent on gripper control, believes that Quillfield Logistics Systems infringes. Quillfield is a Delaware corporation headquartered in Atlanta. Its robots are sold nationwide. Tern Valley's first instinct, based on what it has heard at conferences, is Marshall.

Research shows Quillfield has no office in the Eastern District of Texas. It does run a staffed service depot in Fort Worth (Northern District of Texas), it has a sales office in Grand Rapids, and three field engineers live near Dallas without company facilities. It has one large customer in Tyler, where its robots were installed.

Marshall is out. A customer installation is not Quillfield's place. Field engineers at home without more resemble Cray.

Grand Rapids is promising. Tern Valley is based nearby, Quillfield's Michigan sales office satisfies Cray, and sales in the district are easily alleged. On a § 1404(a) motion to Atlanta, Quillfield would point to its engineers, and Tern Valley would point to its inventors and its own documents at home. Local interest is real on both sides.

Delaware is safe from venue challenge. But it is a neutral site for both, and Quillfield could argue for transfer to Atlanta under Jumara factors with some force, given In re Link_A_Media Devices Corp., 662 F.3d 1221 (Fed. Cir. 2011).

Northern Georgia would be fully proper, but it hands the defendant its home court and jury.

The recommendation would likely be the Western District of Michigan, where venue holds, the plaintiff's ties are real, and a transfer motion must overcome genuine connections. Tern Valley gives up whatever it imagined it would gain in Marshall and gets something more valuable, a forum it will probably keep. The filing fee is the same either way.

Part two: challenging venue as the accused infringer

Step 1: First days after service

Three things happen immediately. Calendar the response date, conservatively. Issue a litigation hold that specifically reaches location, payroll, facilities, and equipment records, since these often sit outside the usual custodians. For the mechanics, see Litigation Holds, Spoliation, and Rule 37(e): Preserving Electronic Evidence Before It Costs You the Case. And stop anyone from making admissions: no quick answer, no casual correspondence accepting venue, no stipulation that says more than it needs to.

If you need time, ask for an extension and reserve your defenses. A simple extension generally should not forfeit a venue objection, because Rule 12(h)(1) waiver arises from what is left out of a motion or pleading. But forfeiture under In re Micron Technology, Inc., 875 F.3d 1091 (Fed. Cir. 2017), is discretionary, so say it in writing:

Defendant's agreement to this extension is without waiver of, and Defendant expressly reserves, all defenses and objections, including those under Federal Rule of Civil Procedure 12(b)(2) through (5), 28 U.S.C. §§ 1400(b) and 1406, and any motion under 28 U.S.C. § 1404(a).

Step 2: Run the footprint audit under privilege

Have counsel direct the audit, so the working papers are protected as far as they can be, and assume underlying facts will be discoverable. The questions come directly from Cray, Google, ZTE, and Celgene. Patent Venue Toolkit: Venue Discovery, Rule 12(b)(3) Motions, and Section 1404 Transfer Papers contains a full worksheet. In summary, for each entity, in the district of suit, looking at the filing date and back to when the alleged infringement began, since the timing rule is unsettled:

• Real estate. Leases, subleases, coworking memberships, storage units, labs, data center cages, trade show or retail space. Who signed, who pays, and who controls access?
• People. Employees and contractors with home addresses in the district, drawn from payroll and not from memory. Note titles, duties, hire dates, and who they report to. Include people who left, in case the plaintiff looks back to accrual.
• Conditions on location. Job postings, offer letters, relocation agreements, territory assignments, and any statement that a role must be in the area.
• Payments. Rent or home-office stipends, internet and phone reimbursements, and shipping costs, and whether they depend on location.
• Stuff at homes. Inventory, samples, demo units, lab equipment, and tools. Where does it live? Is it there by company requirement or by convenience? Note Monolithic Power's attention to equipment "not typically found in a generic home office."
• Holding out. Website, directories, business cards, signage, marketing, and social media.
• Vendors and agents. Call centers, repair shops, distributors, staffing agencies, installers. Do the contracts give a right of interim control? Who chose the location?
• Infrastructure. Servers, cache nodes, colocation, cloud regions. Who owns the equipment and who touches it? Any staff or contractors regularly on site?
• Affiliates. Which entity employs whom? Any shared facilities? Are corporate formalities kept?

Be careful with one distinction: do not change facts to win the motion. Closing an office or moving an employee right after service will look bad and may not help, because the Federal Circuit has left open the timing question. Google's withdrawal of servers after suit did not matter, as Google conceded. If a business decision about a location is truly pending, get advice before acting.

Step 3: Decide what to file

Most defendants have a menu.

Consolidate. Rule 12(g)(2) and (h)(1) mean a defense available at the time and left out of the first Rule 12 motion is waived. A Rule 12(b)(6) motion filed alone would forfeit Rule 12(b)(3). See Motions to Dismiss Under Rule 12: A Practical Guide for Plaintiffs and Defendants. If a responsive pleading was filed first without the defense, Rule 12(h)(1)(B)(ii) still allows it in an amendment as a matter of course under Rule 15(a)(1), but do not count on being able to use that.

Ask for what you actually want. A § 1406 motion that says "dismiss or transfer to [named district]" gives the court something to grant. Consider whether a dismissal or a transfer serves you better. A plaintiff dismissed without prejudice may simply refile, perhaps in a better forum for it. Transfer can put the case in your home court on your terms.

File both, in order. Where both arguments are available, make improper venue the lead argument and § 1404(a) the alternative. In ZTE, a magistrate judge addressed the § 1404(a) motion first and left the improper venue motion pending, which shows why the motion should make the order of decision clear. A § 1404(a) motion assumes venue is proper only for purposes of that motion, and it should say so. Do not file the transfer motion later as an afterthought. In re Apple Inc., 52 F.4th 1360 (Fed. Cir. 2022), says the decision "must proceed expeditiously as the first order of business," but a movant who waited gets less sympathy. In the Fifth Circuit, the practical-problems factor can weigh against a movant who "inexcusably delayed" until "late in the litigation," as In re TikTok, Inc., 85 F.4th 352 (5th Cir. 2023), explains.

Should you bother? A § 1400(b) challenge is cheap compared with trial but not free, and it invites discovery into your people and facilities. If the plaintiff's forum is tolerable, or if you would rather not have a discovery record on where your employees work, a considered decision not to object is legitimate. Make it deliberately and tell the client it is permanent. A venue objection that is dropped today cannot be revived later on a whim, as Neirbo Co. v. Bethlehem Shipbuilding Corp., 308 U.S. 165 (1939), and Rule 12 make clear.

Step 4: Write the declarations carefully

The declaration is what the Federal Circuit will read if you end up there, so get the declarant and the facts right.

• Choose someone who knows, or who has checked and can show how. In Apple (2022), Apple's declarant was a finance manager relying on what he learned from others, and when questions arose, the company sought leave to add declarations from those employees. Expect a deposition.
• Address each Cray consideration. Own or lease? Possession or control? Required to live there? Inventory or equipment by requirement? Representation? Actual business from there? Name the facts, not conclusions.
• Be precise on time. State the relevant dates, including the date of the complaint and when the alleged acts began.
• Avoid absolutes that discovery can break. "No employee has ever stored product at home" is the sentence that a single email will disprove.

Sample paragraph for a § 1406 declaration:

[Company] does not own, lease, rent, or otherwise possess any real property in the [___] District of [State], and did not do so when the complaint was filed on [date]. As of that date, [number] of [Company]'s [total] employees had a home address in the District. [Company] did not require any of them to live in the District, and its employment agreements with them contain no such requirement. [Company] does not pay any part of their rent or mortgage. [Company] does not store inventory at those homes and does not list those homes as [Company] locations on its website or elsewhere. I base this declaration on my review of [payroll and facilities records] and my discussions with [roles].

If any of those statements is not true, do not soften it into something misleading. Reconsider the motion instead.

For help preparing a corporate witness who may be deposed on this declaration, Preparing a Witness for Deposition: What Is Proper, What Is Coaching, and What the Other Side Can Discover covers what is proper and what is discoverable.

Step 5: Venue discovery, from each chair

Discovery on venue is usually available where facts are genuinely disputed. Oppenheimer Fund, Inc. v. Sanders, 437 U.S. 340 (1978), said so in a footnote, and the Annotated Patent Digest gathers district court decisions on both sides. District courts retain broad discretion. Celgene went through two years of it.

If you are the plaintiff, target your requests. The questions you need answered are narrow: places, people, control, conditions, representations. Interrogatories under Rule 33, document requests under Rule 34, requests for admission under Rule 36, and a Rule 30(b)(6) deposition of a person with knowledge will usually do. Asking for everything about every employee nationwide invites denial, and it delays the case you want to move quickly. If you need the company's list of employee homes, offer to accept it under an attorneys-eyes-only designation.

If you are the defendant, propose limits early and in writing: a time window around the complaint, the challenged district only, the named entity only, and a fixed number of requests and deposition hours. Provide useful facts voluntarily. Courts become less patient with a party who asserts facts by declaration and then resists testing. Move for a protective order under Rule 26(c) to protect employees' home addresses and personal data. Negotiating a Protective Order and Filing Under Seal: A Practical Guide explains how. Since venue discovery often pulls HR and legal communications quickly, have a Rule 502(d) order in place early, as Rule 502 and Inadvertent Production: Waiver, Clawback Agreements, and Why Every Case Needs a 502(d) Order recommends.

Sample proposal:

The parties shall complete venue-related discovery within [45] days. Plaintiff may serve up to [10] interrogatories and [15] document requests limited to Defendant's facilities, personnel, and activities in the [___] District of [State] from [date] to the filing of the complaint, and may take one Rule 30(b)(6) deposition of up to [4] hours and depositions of Defendant's declarants of up to [3] hours each. Merits discovery [shall be stayed / shall proceed only as to ___] pending a ruling on Defendant's motion.

Whether merits discovery should stop in the meantime is an open question. Apple (2022) said transfer must be decided first and venue discovery must proceed immediately, and it expressly did not decide the extent to which merits discovery may proceed. Ask for a stay or sequencing anyway.

Step 6: Build a transfer motion that can survive review

In the Fifth Circuit, the movant must show the transferee forum is clearly more convenient under the factors from In re Volkswagen of America, Inc., 545 F.3d 304 (5th Cir. 2008) (en banc). In re Clarke, 94 F.4th 502 (5th Cir. 2024), adds that the marginal gain must be significant and the evidence must make it plainly obvious that it will actually materialize. Other circuits use their own factors, so begin with the regional test, for instance Jumara v. State Farm Insurance Co., 55 F.3d 873 (3d Cir. 1995), in Delaware.

Threshold: show the case "might have been brought" in the transferee district, as to every defendant, without relying on consent. Hoffman v. Blaski, 363 U.S. 335 (1960). A transfer to a district where all parties have consented is available, but the plaintiff rarely will. Samsung shows that a plaintiff's restructuring of its patent rights to defeat this requirement can be disregarded.

Build the evidence by factor. A toolkit chart is available in Patent Venue Toolkit: Venue Discovery, Rule 12(b)(3) Motions, and Section 1404 Transfer Papers.

Willing witnesses. Identify people by name and job, what they know and how it relates to the case, and where they live and work. Cover design, development, marketing, and finance for the accused feature, and include the inventors, prosecuting counsel, and prior-art witnesses. In re Genentech, Inc., 566 F.3d 1338 (Fed. Cir. 2009), does not require proof they will testify, and Juniper and In re Hulu, LLC, No. 2021-142, 2021 WL 3278194 (Fed. Cir. Aug. 2, 2021) (nonprecedential), reject categorical discounts. But In re SAP America, Inc., 133 F.4th 1370 (Fed. Cir. 2025), left in place a finding where the movant said only that two employees "potentially have relevant knowledge" without explaining it. Say what they know.

Compulsory process. List nonparty witnesses within each court's subpoena range under Rule 45(c). Former employees are often the best example. Say which are important and why. Google (2026) counted seven nonparties in California against five in Texas and emphasized that one of the seven was the inventor.

Sources of proof. Identify specific physical and electronic evidence, its custodians, and access limits. Do not stop at "documents are in California." TikTok relied on source code available only to certain employees, and Juniper accepted a declaration listing categories at headquarters. Google (2026) credited a prior art CD kept in California, and it treated witness location as a proxy for documents. SAP faulted a movant who identified no physical evidence or custodians in the transferee division.

Practical problems. Address co-pending cases and whether they involve the same patents, parties, and technology. Vistaprint credits real overlap, while Google (2023) discounts incremental gains. SAP makes clear that a closed case does not count.

Court congestion. Use actual docket data, and speak about congestion instead of speed. Juniper and SAP limit reliance on scheduling orders. In re Planned Parenthood Federation of America, Inc., 52 F.4th 625 (5th Cir. 2022), gives the district court latitude. Do not make this the centerpiece of the motion.

Local interest. Show where the accused functions were researched, designed, and developed, and where the events behind any willfulness claim took place. Answer any office in the forum directly: what does it do, and did it touch the accused product? Defense Distributed v. Bruck, 30 F.4th 414 (5th Cir. 2022), and Apple (2020) are the key cases.

Familiarity with law and conflicts of law. Usually neutral. Say so and move on.

If you are opposing transfer, attack with specifics too: witness lists padded with people who know nothing, offices the declaration ignored, engineers who actually work in the forum, third parties in subpoena range, customers there, or an earlier case on the same patent. Note in your opposition any real delay in the motion. TikTok separates inexcusable delay from the "garden-variety delay associated with transfer," which does not count.

Finally, ask for a prompt ruling and say that merits events should wait. If a Markman hearing is approaching and the motion is still pending, consider a short status request. Apple (2020) said disposing of the motion "should unquestionably take top priority," and In re Horseshoe Entertainment, 337 F.3d 429 (5th Cir. 2003), is the Fifth Circuit source.

Worked scenario: the Boise software company

Return to the opening. Suppose Marrowstone Software, the Boise company, is a Delaware corporation accused in Marshall of infringing a method and system patent through its logistics platform. The audit finds the following. The three Plano employees were hired remotely, and two have since moved in from other states. Marrowstone reimburses all remote staff for internet, nationwide. The job postings for two of the three say "remote, U.S.," and the third says "must be based in North Texas to support our Dallas customers." The third employee has a rack of test phones at home, shipped from Boise, and runs compatibility testing there for the company's product. Marrowstone has no lease in Texas.

What about § 1406? The first two employees look like Cray. The third is a problem. The posting links location to the business, and equipment supports that the work is done from that home. This is close to Monolithic Power, though Marrowstone would argue that it never required the phones be kept at home and has no possessory right. Counsel should tell the client that the motion is sound but not certain, that denial probably cannot be fixed before trial, and that discovery will reach the third employee. Marrowstone files anyway, because the alternative is a trial more than a thousand miles from home, and because a loss preserves the issue for appeal.

What about § 1404(a)? Boise is where the accused feature was built. The design team, documents, and source code are there, and the plaintiff, a licensing company incorporated in Texas months before suit, has a small office in Plano with one employee, resembling Juniper. The compatibility testing does touch the accused product, so the motion must not pretend otherwise. It should explain that the feature was designed in Boise, that general testing also happens there, and that the plaintiff's witnesses are mostly in California. Marrowstone names 11 engineers and two former employees in Idaho, and it does not rest on "documents are in Boise."

What goes in the first filing? A consolidated motion under Rule 12(b)(3), a Rule 12(b)(6) section if there is a real § 101 argument, and an alternative § 1404(a) motion, with declarations from the head of people operations and the chief technology officer. The company does not discuss its internet reimbursement as a concession. It explains it plainly.

What happens on denial? If the court denies both, Marrowstone's next call concerns mandamus on § 1404(a), filed quickly. It would not petition on § 1400(b) unless the ruling turned on a fresh legal question, and the Monolithic Power and Comcast denials explain why. It would state in its answer that venue remains contested, to preserve the issue for appeal.

Part three: mandamus and what comes after

Deciding whether to petition

The test comes from Cheney v. United States District Court, 542 U.S. 367 (2004): no other adequate means, a clear and indisputable right, and a writ appropriate in the circumstances. The two kinds of venue rulings fare differently.

For a § 1404(a) denial, the first requirement is treated as met in the Fifth Circuit, and HTC explains why: the harm is the inconvenience itself. Your question is whether the error produced a patently erroneous result. Writs are most likely where no factor favors the plaintiff's forum, or the district court applied a categorical rule the Federal Circuit has rejected. Writs are less likely where there are mixed facts and a movant with a thin record, as in SAP and Monolithic Power. The Federal Circuit applies regional law, and it sometimes disagrees about these calls internally, so read the most recent orders from the same court.

For a § 1406 denial, the default is that appeal after judgment is adequate. HTC; Comcast. Ask whether your case raises a basic, unsettled, recurring legal issue that has divided district courts, as in In re Cray, ZTE, BigCommerce, Google, and Volkswagen. Fact-specific employee home rulings do not usually qualify. Expense and burden alone do not carry the first requirement. In re BP Lubricants USA Inc., 637 F.3d 1307 (Fed. Cir. 2011). A clear refusal to follow binding precedent can, as in In re Oath Holdings Inc., 908 F.3d 1301 (Fed. Cir. 2018).

Mechanics

• Where and how. The petition goes to the Federal Circuit under 28 U.S.C. § 1651 and Fed. R. App. P. 21, even when the underlying ruling applies regional law. Check the current Federal Circuit rules, length limits, and docketing fee. HTC's petition was briefly dismissed for failing to pay the fee.
• Timing. No rule sets a deadline, but delay undercuts the claim of urgency. Treat days as the unit of measure. Apple (2020) shows that a petition can even be filed before a written ruling when the case is racing ahead, though that is unusual.
• Reconsideration. A motion for reconsideration may be expected first in some circumstances, but BigCommerce and Apple (2022) both excused it where it would have been futile.
• Stay. A petition does not stop the district court. Ask the district court for a stay and, if denied, the Federal Circuit. Do this early. If you are the party opposing a granted transfer, ask immediately, because Clarke shows how quickly a file can leave.
• Record. The appendix must contain what the panel needs: motion, opposition, declarations, deposition excerpts, and the order.

Interlocutory Review Toolkit: 1292(b) Certifications, Rule 54(b) Judgments, and Mandamus Petitions provides templates, and Patent Venue Toolkit: Venue Discovery, Rule 12(b)(3) Motions, and Section 1404 Transfer Papers has a venue-specific petition outline.

After the ruling

If improper venue is found, the plaintiff should weigh dismissal against transfer. Patent damages reach back only six years, under 35 U.S.C. § 286, so a dismissal can have real cost. Be ready to name a preferred transferee district, as the parties did in Cray.

If improper venue is rejected, preserve the issue in the answer and at every later occasion, and request a specific finding if the record has changed. A defendant who then litigates through trial without reasserting it may not lose it, but a clean record avoids an argument. Under HTC, a meritorious objection can lead to vacatur after final judgment if it was not waived.

If transfer is granted, the receiving court applies its own regional law on procedure, and Federal Circuit law on patent issues, under the usual framework. Check its local patent rules, because earlier contentions may need to be revised.

Declaratory judgment actions as a forum tool

An accused infringer with a real controversy can sue first under 28 U.S.C. § 2201. MedImmune, Inc. v. Genentech, Inc., 549 U.S. 118 (2007), sets the standard. Section 1391 governs venue, not § 1400(b), as VE Holding Corp. v. Johnson Gas Appliance Co., 917 F.2d 1574 (Fed. Cir. 1990), observed. The practical limit is personal jurisdiction over the patent owner, which is easier to establish than it used to be after Trimble Inc. v. PerDiemCo LLC, 997 F.3d 1147 (Fed. Cir. 2021), and Apple Inc. v. Zipit Wireless, Inc., 30 F.4th 1368 (Fed. Cir. 2022). A patent owner's repeated letters and calls into the accused infringer's home district can be enough.

A first-filed suit generally has priority, but courts can decline it, and an obvious race to the courthouse is a factor. Genentech, Inc. v. Eli Lilly & Co., 998 F.2d 931 (Fed. Cir. 1993); Electronics for Imaging, Inc. v. Coyle, 394 F.3d 1341 (Fed. Cir. 2005). Convenience can decide it when suits are nearly simultaneous. Micron Technology, Inc. v. MOSAID Technologies, Inc., 518 F.3d 897 (Fed. Cir. 2008).

Patent owners who want to avoid a first strike should send careful notices, or file before sending anything. Letters that say too much in a distant forum can create the jurisdiction they would rather avoid. The full discussion is in Filing or Defending a Declaratory Judgment Action: A Practical Guide.

Trade-offs and costs

For a patent owner. The cost of a venue mistake is rarely a filing fee. It is the months spent on motions and discovery before the merits start, while damages accumulate but the case does not move. A contested forum can consume early budget that a client expected to spend on infringement contentions. A safe but slower forum can be the cheaper choice overall, and a weaker jury draw can be offset by not having to defend a venue finding on appeal.

For a defendant. A § 1406 motion is usually one of the better-value early filings if the facts are good, but venue discovery can produce an unwelcome record about the workforce, and it can reveal documents that help the plaintiff elsewhere. A winning motion may just bring a refiled case in a forum you like less, for instance Delaware. Mandamus adds appellate cost with uncertain odds. And a plaintiff's choice can sometimes be used in settlement discussions, because a pending venue motion gives both sides an uncertain near-term event.

For either. Do not budget from averages. Whether venue discovery takes six weeks or, as in Celgene, two years depends largely on how the parties and the judge manage it.

Common mistakes

By patent owners

1. Pleading the statute and hoping. Westech affirmed dismissal where the plaintiff recited § 1400(b) even after a Rule 11 warning.
2. Treating a brand as one defendant and missing that the entity with the store does not run the accused website, as in Andra.
3. Relying on sales, a sales rep's phone number, or a LinkedIn profile, which Cray and Celgene rejected.
4. Treating a contract as agency. Quality standards are not interim control, as Volkswagen explains.
5. Filing only method claims with one-step allegations without telling the client about the appellate risk.
6. Forming a Texas LLC or opening a shell office to shore up the forum, which can damage credibility, as Samsung and Juniper show.
7. Forgetting the transfer motion. Winning under § 1400(b) does not defeat § 1404(a).
8. Serving overbroad venue discovery, which can make a judge less inclined to allow any of it.

By accused infringers

1. Filing a Rule 12(b)(6) motion alone, thereby waiving improper venue under Rule 12(g)(2) and (h)(1).
2. Admitting venue in the answer without thinking about it. Oath survived that only because of the unique TC Heartland transition and its express reservation.
3. Waiting to see how an early ruling goes. Micron identifies that tactic as a starting point for forfeiture.
4. Trusting memory instead of payroll data when stating how many employees are in a district.
5. Writing a declaration that discovery disproves. Credibility lost on venue tends to follow a party into the merits.
6. Rearranging facilities after being sued and assuming that solves the issue.
7. Filing a generic transfer motion. A thin showing lost in SAP for lack of specifics, and Clarke raises the proof required.
8. Forgetting foreign affiliates. The foreign parent has no venue objection, even when the American subsidiary does.
9. Sitting on a denial for weeks before deciding about mandamus.
10. Using a job posting that requires residence near a customer, without realizing it can be evidence of a place of business. Tell human resources and recruiters that these words carry legal weight, though the decision should still be driven by the business.

For more on where a dispute can be heard overall, see Forum Selection, Transfer, and Parallel Proceedings: Choosing and Keeping the Court You Want, and for the general federal jurisdiction overlay, see Federal Subject-Matter Jurisdiction: Arising Under, Diversity, Supplemental Claims, and the Defect That Never Waives.

The steps above are general information and are no substitute for advice based on your facts, your court, and its current orders. If a complaint has arrived from a distant court, or you are deciding where to file, it is worth having patent litigation counsel look at the footprint early, since most of the options here exist only in the first few weeks.

Related Documents

Related Articles

• Patent Venue After TC Heartland: Regular and Established Places of Business, Foreign Defendants, and Transfer: the full doctrine, from the 1897 statute through Cray, Google, and Google (2026).
• Forum Selection, Transfer, and Parallel Proceedings: Choosing and Keeping the Court You Want: broader forum strategy outside patent law.
• Interlocutory Appeals and Mandamus: Getting Appellate Review Before Final Judgment: mandamus and other early appellate tools.
• Personal Jurisdiction Over Online and Foreign Defendants: From Zippo to Ford Motor: the jurisdictional limit on suits against foreign defendants.
• Declaratory Judgment Actions: Jurisdiction, Discretion, and the Race to the Courthouse: first-strike litigation and the limits of mirror-image suits.
• Inter Partes Review Strategy: Discretionary Denial, Estoppel, and the Parallel District Court Case: how forum schedules interact with Patent Office review.
• Preparing a Witness for Deposition: What Is Proper, What Is Coaching, and What the Other Side Can Discover: preparing a declarant for a venue deposition.
• Rule 502 and Inadvertent Production: Waiver, Clawback Agreements, and Why Every Case Needs a 502(d) Order: protecting privilege when venue discovery moves quickly.
• Federal Subject-Matter Jurisdiction: Arising Under, Diversity, Supplemental Claims, and the Defect That Never Waives: how subject-matter jurisdiction differs from venue.

Related Guides

• Moving or Keeping a Case in Your Chosen Forum: A Practical Guide: general transfer and remand practice.
• Motions to Dismiss Under Rule 12: A Practical Guide for Plaintiffs and Defendants: consolidating Rule 12 defenses.
• Filing or Defending a Declaratory Judgment Action: A Practical Guide: the declaratory judgment route.
• Running an ANDA Litigation: A Practical Guide: generic drug litigation, including forum.
• Recovering From a Missed Federal Court Deadline: A Practical Guide: recovering if a deadline has already passed.

Related Checklists

• Patent Venue and Transfer Checklist: A Practical Checklist: the printable version of these steps.
• Venue and Transfer Checklist: A Practical Checklist: general venue and transfer tasks.

Related Toolkits

• Patent Venue Toolkit: Venue Discovery, Rule 12(b)(3) Motions, and Section 1404 Transfer Papers: the worksheet, interrogatories, motion outline, evidence chart, petition outline, and declarations described here.
• Interlocutory Review Toolkit: 1292(b) Certifications, Rule 54(b) Judgments, and Mandamus Petitions: general mandamus templates.
• Forum Strategy Toolkit: Clauses, Transfer Motions, and First-Filed Briefing: forum clauses and first-filed briefing.