A Practice Note discussing motion practice related to local patent rule disclosures in the US District Court for the Northern District of Ohio. This Note discusses motions to amend contentions under the local patent rules 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 court's local civil rules.