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37 C.F.R. Part 42: Trial practice before the Patent Trial and Appeal Board
37 C.F.R. Part 42 sets the PTAB trial rules for inter partes and post-grant review.
Citation: 37 C.F.R. pt. 42
Type: Regulation
Jurisdiction: Federal
Issuing body: U.S. Patent and Trademark Office
Status: In force
Part 42 sets the trial practice rules for Patent Trial and Appeal Board proceedings, including inter partes review and post-grant review. It covers petitions, preliminary responses, discovery, and the conduct of the trial through the final written decision. The PTAB applies the ordinary-meaning claim construction standard under section 42.100(b).
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