A form of opposition to a petitioner's request for a rehearing of a Patent Trial and Appeal Board (PTAB) decision denying institution of inter partes review (IPR) under 37 C.F.R. § 42.71(c) and (d). This Standard Document includes model language a patent owner's counsel can use as a starting point to refute the matters the petitioner argues that the PTAB misapprehended or overlooked in its decision denying institution. It has integrated drafting notes with important explanations and drafting tips.