A sample brief that a petitioner may use to oppose a patent owner's motion to exclude evidence in an inter partes review (IPR) proceeding at the Patent Trial and Appeal Board (PTAB) under 37 C.F.R. §§ 42.22 and 42.64(c). This Standard Document includes language that counsel may use as a starting point to oppose the motion to exclude on both procedural and substantive grounds under the regulations, the PTAB's trial practice rules, and the Federal Rules of Evidence. This Standard Document also has integrated drafting notes with important explanations and drafting tips.