 HOUSTON, April 15, 2021 PRNewswire -- U.S. Well Services, Inc. Nasdaq: USWS today announced it has filed suit in the United States District Court for the Western District of Texas - Waco Division for patent infringement against Halliburton Company NYSE: HAL and Cimarex Energy Co. NYSE: XEC. The original complaint alleges infringement of multiple U.S. Well Services patents. 