This Practice Note discusses discovery motion practice related to local patent rule disclosures in the US District Court for the District of Utah. It discusses motions to amend contentions and motions to strike or compel an adversary to supplement untimely or inadequate patent disclosures. Specifically, it discusses why a party may want to bring a motion, grounds for bringing a motion, and how to bring a motion under the District of Utah's Civil Local Rules and Local Patent Rules.