CFR›Title 37›Chapter I›Part 42›Subpart B›Subject Group After Institution of <em>Inter Partes</em> Review ContainsSections 42.120–42.123CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Sections 42.120 § 42.120 Patent owner response. 42.121 § 42.121 Amendment of the patent. 42.122 § 42.122 Multiple proceedings and Joinder. 42.123 § 42.123 Filing of supplemental information. Next General General