CFR›Title 37›Chapter I›Part 42›Subpart B ContainsSubject groups After Institution of <em>Inter Partes</em> Review–Instituting <em>Inter Partes</em> ReviewCorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Subpart B—Inter Partes Review Subject Groups After Institution of <em>Inter Partes</em> Review After Institution of <em>Inter Partes</em> Review Sections 42.120–42.123 General General Sections 42.100–42.107 Instituting <em>Inter Partes</em> Review Instituting <em>Inter Partes</em> Review Section 42.108 Source77 FR 48727, Aug. 14, 2012, unless otherwise noted. Previous A Subpart A—Trial Practice and Procedure Next C Subpart C—Post-Grant Review