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's exclusive licensee should be allowed to continue with its patent infringement action alone. It can sue other company having strong list of patents (portfolio) in a particular domain, now once they have it, it can sue the other company. Check out the requirements below. Fill Out three (3) copies of the Patent Application Form. Represented NEC Corp. In a patent infringement case in the Eastern District of Texas relating to content-addressable storage systems. Secured an injunction for a major US welding equipment manufacturer against a main competitor in a patent infringement case in the Eastern District of Texas. A patent troll is a derogatory term used to describe the use of patent infringement claims to win court judgments for profit or to stifle competition.