Claim Construction Toolkit: Charts, Briefs, Expert Declarations, and Hearing Materials

Summary. The working documents of a Markman phase, annotated.

How to use this toolkit

These are structures, not forms. Every district has local patent rules and most judges have standing orders that control format, timing, and page limits; check both before adapting anything here. The templates are numbered so a team can assign ownership explicitly, which is the single most effective way to prevent the gaps that surface at a hearing.

Template 1 — Intrinsic evidence term index

Owner: mid-level associate. Built once, used constantly.

One row per term, one workbook per patent.

What it prevents: the week-six discovery that the applicant surrendered the scope you are now asserting.

Template 2 — Term triage grid

Owner: lead counsel. Revisited at every strategy meeting.

Rules for filling it out. The "if we win" column must state a litigation consequence, not a rhetorical one. "Stronger infringement argument" is not a consequence. "Summary judgment of infringement on the '412 patent as to the Model 7 line" is.

What it prevents: spending three of five term slots on issues that change nothing.

Template 3 — Validity stress test worksheet

Owner: whoever owns invalidity. Completed before any construction is filed.

For each proposed construction:

1. State the construction.
2. List the three strongest prior art references in the case.
3. For each reference, apply the construction element by element. Does the reference now disclose the limitation?
4. If yes: does an obviousness combination now close under 35 U.S.C. § 103?
5. If the construction creates an anticipation problem under 35 U.S.C. § 102, revise or accept the risk consciously.
6. Repeat for the opposing construction — a construction that creates their validity problem is worth proposing.

What it prevents: the patentee's own construction becoming the defendant's best invalidity argument.

Template 4 — POSITA definition and support

Owner: technical liaison, adopted by the expert.

A person of ordinary skill in the art at the time of the invention would have had [degree] in [field], together with approximately [N] years of experience in [specific practice area], or equivalent education and experience. Such a person would have been familiar with [list of conventional techniques, standards, or literature] and would have had access to [tools/instrumentation].

Support to assemble:

• The expert's own background and how it maps to the definition.
• The field of the invention as stated in the patent.
• The technical level of the cited prior art.
• Any industry credential, standard, or curriculum that corroborates the level.

Consistency check: run this definition against your positions on obviousness, enablement, written description, and indefiniteness before filing.

Template 5 — Meet and confer agenda

Owner: associate leading the negotiation.

1. Confirm the court's cap on disputed terms and the deadline.
2. Exchange lists; identify overlap.
3. Terms we will agree to construe as proposed by the other side (Tier 3 trades).
4. Terms they may agree to; what we offer in exchange.
5. Terms that cannot be resolved; confirm each side's final position in writing.
6. Whether either side contends any term is indefinite, stated expressly.
7. Whether either side contends any term is governed by § 112(f), stated expressly.
8. Whether the preamble of any claim is limiting.
9. Expert declarations: will they be exchanged, and will depositions occur?
10. Tutorial format and length.
11. Hearing logistics: live testimony, demonstratives, time allocation.

Document everything by email the same day. Disputes about what was agreed in a meet and confer are unwinnable and unpleasant.

Template 6 — Joint claim construction statement skeleton

Owner: shared; one firm drafts, the other edits.

1. Agreed constructions. Term | Agreed construction | Claims affected.
2. Disputed terms. For each: Term | Claims | Plaintiff's construction | Plaintiff's intrinsic support | Plaintiff's extrinsic support | Defendant's construction | Defendant's intrinsic support | Defendant's extrinsic support.
3. Terms alleged to be indefinite, with the party's alternative construction stated in case the court disagrees.
4. Terms alleged to be governed by § 112(f), with the identified function and the contended corresponding structure.
5. Anticipated length of hearing and whether live testimony is requested.
6. Identification of experts and whether declarations are being submitted.

Waiver warning: state alternative positions explicitly. A party that pleads only indefiniteness may be held to have waived any construction.

Template 7 — Opening brief outline

Owner: the writer.

I.   INTRODUCTION                                   (2-3 pp)
     - What the invention is
     - What the dispute is really about
     - Why our reading follows from the patent itself

II.  TECHNOLOGY BACKGROUND                          (3-5 pp)
     - The field and the problem
     - The prior approaches
     - What the patent adds
     - Annotated figures

III. LEVEL OF ORDINARY SKILL                        (1 p)

IV.  LEGAL STANDARDS                                (1-2 pp)
     - Phillips hierarchy
     - Only the doctrines actually in play

V.   THE DISPUTED TERMS                             (bulk)
     For each term:
     A. The claim language
     B. The competing constructions (side-by-side table)
     C. The claims support our construction
     D. The specification supports our construction
     E. The prosecution history supports our construction
     F. Extrinsic evidence confirms it
     G. Their construction imports a limitation / rewrites the claim
     H. The passage they will rely on, addressed

VI.  CONCLUSION                                     (table of constructions)

Template 8 — Term argument block

Use inside the brief and again in the bench binder.

Term: "thermally coupled" (claims 1, 4, 9) Our construction: [text] Their construction: [text] Why ours is right, in one sentence: [text] Best intrinsic support: '412 patent, 4:22–31 ("...") Second-best: Response to Office Action, Mar. 3, 2019, at 7 ("...") Their best passage, and our answer: [passage] — [answer] Consequence if adopted: [text]

Everything a judge needs, on one page, for one term.

Template 9 — Expert declaration skeleton

Owner: the expert, with counsel assistance limited to structure and citation.

I.    QUALIFICATIONS AND ENGAGEMENT
II.   MATERIALS REVIEWED
      (list the patent, full file history, prior art, related proceedings)
III.  LEGAL STANDARDS AS EXPLAINED TO ME
IV.   THE TECHNOLOGY AND THE STATE OF THE ART AT [PRIORITY DATE]
V.    LEVEL OF ORDINARY SKILL IN THE ART
VI.   HOW A PERSON OF ORDINARY SKILL WOULD HAVE UNDERSTOOD THE
      DISPUTED TERMS
      A. [Term 1]
         1. Usage in the field at the relevant time
         2. Technical conventions bearing on the term
         3. How the specification's disclosure informs understanding
      B. [Term 2] ...
VII.  RESPONSE TO [OPPOSING EXPERT]
VIII. DECLARATION UNDER 28 U.S.C. § 1746

Note the last item: an unsworn declaration is admissible under 28 U.S.C. § 1746 only if it includes the statutory language. This is missed more often than it should be.

What to avoid: conclusions unmoored from technical reasoning. The value of the declaration under Teva Pharmaceuticals USA, Inc. v. Sandoz, Inc., 574 U.S. 318 (2015) lies in the facts it establishes about the field.

Template 10 — Indefiniteness argument structure

For challenges under Nautilus, Inc. v. Biosig Instruments, Inc., 572 U.S. 898 (2014).

1. Identify the term and quote it in context.
2. Establish the standard: claims must inform skilled artisans "with reasonable certainty" about the scope, per Nautilus, and the requirement originates in 35 U.S.C. § 112(b).
3. Show the absence of an objective boundary. The specification discloses no measurement method, no numerical baseline, no comparison point.
4. Show that competing measurement methods yield different answers (for parameter terms), with expert support.
5. Show that the prosecution history did not cure it — the applicant never defined the term or explained the boundary.
6. Address the presumption of validity under 35 U.S.C. § 282 and the clear-and-convincing standard of Microsoft Corp. v. i4i Ltd. Partnership, 564 U.S. 91 (2011) directly rather than ignoring it.
7. State the alternative construction if the court disagrees.

Template 11 — Means-plus-function analysis worksheet

Template 12 — Technology tutorial outline

Twenty to thirty minutes unless the court says otherwise.

1. The problem the field was solving (3 min) — why anyone built these devices.
2. How the technology works, generally (8 min) — components, physics or logic, vocabulary.
3. What was conventional at the priority date (5 min) — neutral, sourced to references both sides accept.
4. What this patent describes (8 min) — walk the figures, not the claims.
5. The vocabulary that will recur in argument (3 min) — define terms neutrally; flag that the parties dispute some.

Rules: no accused product, no infringement, no prior art invalidity argument, no adjectives doing work. If the other side would object to a slide, it does not belong in a tutorial.

Template 13 — Bench binder assembly

Tab 1: The patent, with claims tabbed. Tab 2: Table of all disputed terms and both constructions, one page. Tab 3–N: One tab per term, containing the Template 8 argument block plus the three to five key passages, highlighted, in full. Tab N+1: Key prosecution history excerpts. Tab N+2: Annotated figures. Tab N+3: Glossary of technical terms.

Provide a copy for the court, the clerk, opposing counsel, and the podium.

Template 14 — Hearing preparation matrix

Rehearse the "judge's likely question" column out loud with someone unfamiliar with the case.

Template 15 — Post-order analysis memorandum

Complete within one week of the order.

1. CONSTRUCTIONS ADOPTED (table)
2. INFRINGEMENT ANALYSIS UNDER THE ORDER
   - Product by product, limitation by limitation
   - Products now clearly in / clearly out / contested
3. VALIDITY ANALYSIS UNDER THE ORDER
   - Reference by reference
   - New anticipation or obviousness exposure created
4. DAMAGES IMPACT
   - Change to royalty base
   - Change to comparable license analysis
5. EXPERT REPORT CONFORMANCE
   - Which opinions must change
6. DISPOSITIVE MOTION OPPORTUNITIES
7. APPEAL POSTURE
   - Was any construction dispositive?
   - Stipulated judgment feasible?
   - 28 U.S.C. § 1292(b) certification feasible?
8. SETTLEMENT RECOMMENDATION WITH NUMBER

Template 16 — Stipulated judgment of non-infringement

The standard vehicle for appellate review of a dispositive construction. Draft with care.

Essential recitals:

1. On [date], the Court issued its claim construction order construing "[term]" to mean "[construction]."
2. Solely in light of, and solely for purposes of, the Court's construction of "[term]," Plaintiff does not contend that the accused [products] satisfy the "[term]" limitation of claims [X].
3. Plaintiff does not concede that the Court's construction is correct and expressly preserves all arguments regarding the construction of "[term]" and all other terms for appeal.
4. The parties agree that entry of judgment of non-infringement as to claims [X] will resolve all claims and counterclaims [or: and the remaining claims are dismissed without prejudice, subject to a tolling agreement].
5. Nothing herein constitutes a concession as to validity, enforceability, or damages.

Two traps. First, a stipulation that leaves counterclaims pending may not produce an appealable final judgment under 28 U.S.C. § 1291. Second, a stipulation that concedes non-infringement generally, rather than under the construction, can waive the appeal entirely.

Template 17 — Cross-forum consistency log

Owner: one named person, even when different firms handle each forum.

Review before every substantive filing in either forum. Under 35 U.S.C. § 315, positions taken at the Board carry estoppel consequences in district court, and inconsistency is the most common self-inflicted wound in dual-track patent litigation.

Template 18 — Client status memorandum

One page, sent after each milestone. Clients who understand this phase tolerate its cost.

Where we are: [milestone] What was decided: [terms agreed, terms disputed] What it means: [in business terms, not legal terms] What is next and when: [date-certain calendar] Cost incurred / cost to hearing: [figures] The one thing to know: [a single sentence]

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