Defendant
1 case as defendant.
US Well Services LLC is a Houston, Texas-based company founded in 2012 that provides high-pressure, hydraulic fracturing services for unconventional oil and natural gas basins. The company was acquired by ProFrac Holding Corp. in an all-stock transaction in November 2022. Before the acquisition, US Well Services was publicly traded on NASDAQ under the ticker USWS. As a subsidiary of ProFrac Holding Corp., US Well Services is part of an entity with an estimated revenue range of $250M-$500M. Prior to its acquisition, US Well Services had an estimated employee count between 501 and 1,000.
US Well Services specializes in well stimulation services, offering both conventional diesel and multi-patented electric hydraulic fracturing fleets, known as Clean Fleet® technology. Their patented systems include PowerPath for centralized power generation, FRAC MD for predicting and mitigating failures, and SANDSHIELD for reducing silica emissions. The company's electric fracturing technology aims to reduce emissions and sound pollution while offering operational efficiencies and fuel cost savings. They operate in active shale and unconventional oil and natural gas basins across the United States, including the Marcellus and Utica shale plays.
US Well Services' patent litigation posture indicates that of an operating company defending its intellectual property and asserting its portfolio. The company has been involved in 1 tracked case as a defendant. This case, Unified Patents v. US Well Services LLC, was heard at the Patent Trial and Appeal Board (PTAB), suggesting that the company is actively defending its patents against challenges.
US Well Services has been involved in several notable patent-related activities. In April 2021, the company filed a patent infringement lawsuit against Halliburton Co. and Cimarex Energy Co. in the U.S. District Court for the Western District of Texas, alleging infringement of multiple patents related to its electric fracking technology. This case specifically cited patents covering systems for pumping hydraulic fracturing fluid using electric pumps, electric-powered pump down, and centralized monitoring and control of electric-powered hydraulic fracturing fleets. Another case, U.S. Well Services v. Liberty Energy, an electric fracking patent dispute, settled in a Texas federal court in May 2026. Additionally, US Well Services, LLC was a defendant in Halliburton Co. v. US Well Services, LLC and ProFrac Holding Corporation, a patent infringement action over corrosion-resistant fluid end technology for well service pumps, which was terminated in July 2024 in the Texas Southern District Court. The acquisition by ProFrac Holding Corp. included US Well Services' intellectual property portfolio, which comprises over 110 patents, further solidifying ProFrac's position in electric hydraulic fracturing.
Unified Patents filed an Inter Partes Review petition challenging US patent 11009162, which was not instituted procedurally by the PTAB due to the USPTO's 'settled expectations' factor.