Intellectual PropertyPatent
Overcoming Obviousness Rejections: A Comprehensive Guide to Section 103 Analysis
Obviousness under 35 U.S.C. 103 is the single most common and most consequential ground on which patent claims are rejected and invalidated. This guide explains the governing framework from Graham v. John Deere through KSR v. Teleflex, the death of the rigid teaching-suggestion-motivation test, and exactly what an examiner or challenger must show to make out a prima facie case. It then walks through the substantive rebuttals available to a patent owner -- attacking the motivation to combine and the reasonable expectation of success, teaching away, non-analogous art, change in principle of operation, and the full set of objective indicia of nonobviousness together with the all-important nexus requirement. The article translates each doctrine into concrete prosecution and litigation strategy, including claim amendments, declarations under 37 C.F.R. 1.132, examiner interviews, the duty of candor, and the distinct burdens that govern obviousness disputes before the examiner, at the PTAB, and in district court. Worked hypotheticals illustrate how the pieces fit together so that lawyers, judges, and inventors alike can follow the analysis.