Check out the requirements below. Fill Out three (3) copies of the Patent Application Form.Moreover, no damages can be recovered from acts of infringement committed more than four years before the filing of the action. Chapter covers common issues in patent laws and regulations including enforcement, amendment, licensing, term extension, and prosecution. If you're an inventor or small business owner, you may be eligible for free legal assistance in preparing and filing a patent application. These Patent Rules apply to all civil actions filed in or transferred to the. Southern District of Texas that allege claims for patent infringement in a. A patent troll is a derogatory term used to describe a company that uses patent infringement claims to win court judgments for profit or to stifle competition.