Title 35 › Part III— PATENTS AND PROTECTION OF PATENT RIGHTS › Chapter 31— INTER PARTES REVIEW › § 318
When an inter partes review (IPR) starts and is not dismissed, the Patent Trial and Appeal Board must issue a final written decision on whether the challenged patent claims and any new claims added under section 316(d) are patentable. After the time to appeal ends or any appeal finishes, the Director of the Patent Office must issue a certificate that cancels claims found unpatentable, confirms claims found patentable, and puts any new or amended patentable claims into the patent; those added claims have the same effect as described in section 252 for people who made, purchased, used, imported, or substantially prepared to make the patented item before the certificate. The Office must also publish how long each IPR took from institution to final written decision.
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Patents — Source: USLM XML via OLRC
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Reference
Citation
35 U.S.C. § 318
Title 35 — Patents
Last Updated
Apr 5, 2026
Release point: 119-73not60