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Warren Lipschitz is a Principal in the Dallas office of McKool Smith.  Warren is a trial lawyer focused on high-stakes patent infringement and technology cases. He has won numerous courtroom victories, including a recent $145 million verdict against Apple.  Warren played a key role in that trial, presenting and cross examining witnesses and splitting the closing argument with firm chairman and founder Mike McKool.  He also recently presented the infringement expert in a major patent infringement lawsuit in the Eastern District of Texas that resulted in a jury finding of willful infringement and over $110 million in damages. Super Lawyers magazine has recognized Warren as a Texas “Rising Star” for the past three years.

Warren has represented both plaintiffs and defendants across a wide range of technologies, including cellular phones, medical devices, high frequency trading, data compression, wireless signaling protocols, security software, and haptic devices. 

Before receiving his legal degree from the Northwestern University Pritzker School of Law, Warren was a licensed Professional Engineer in the State of Texas and practiced as a structural engineer.


Representative Matters

  • Ericsson v. TCL. Represents Ericsson in matters involving patent infringement and a dispute over FRAND terms for a license relating to LTE, WCDMA, and GSM technologies. The cases are pending before district courts in Texas and California.
  • University of Minnesota v. Ericsson. Represents Ericsson in a patent infringement action involving five patents related to LTE wireless technology.
  • v. Nokia USA Inc. Defending Nokia in litigation filed by involving multiple patents dealing with compression algorithms for digital video cameras; currently pending in the Central District of California.
  • Rockstar Consortium v. Google/Samsung. Represented Rockstar Consortium in a patent infringement suit against Google, Samsung, and others involving a number of patents related to mobile handset technology.
  • Ericsson v. D-Link, et al. Represented Ericsson in its patent infringement action against Intel and a number of laptop and router manufacturers involving 802.11n wireless technology. At trial, the jury returned a verdict of infringement in favor of Ericsson on three patents and awarded a royalty.
  • Ericsson v. Samsung (ITC). Represented Ericsson in a Section 337 action against Samsung involving several cellular and Wi-Fi standard essential patents. Participated in all aspects of the litigation, from filing through post-hearing briefing. The case was settled on terms favorable to Ericsson prior to initial determination.
  • Zenith, et al. v. Craig Electronics. Represented defendants in a patent infringement lawsuit involving patents that were alleged to be essential to the ATSC HDTV standard.  The case was settled on terms favorable to defendants.
  • Becton-Dickinson v. RTI. Represented a leading manufacturer of medical devices in antitrust litigation brought by a competitor.


Rankings & Honors

  • Recognized as a leading lawyer in Patent Litigation by The Legal 500, 2021
  • Recognized by Best Lawyers in America as "Ones to Watch" for Commercial, 2021-2022
  • Named a Texas "Rising Star" by Super Lawyers, 2016-2021

Media & Events


J.D. magna cum laude, Northwestern University School of Law, 2011

  • Order of the Coif

M.E., Civil Engineering (Structural emphasis), University of Texas at Arlington, 2006

B.S., Civil Engineering, University of Texas, 2004

Court Admissions

  • The State of Texas
  • U.S. District Court for the Eastern District of Texas
  • U.S. Court of Appeals for the Federal Circuit
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