Scott Hejny is a principal in the Dallas office of McKool Smith with a practice concentrating on commercial and intellectual property litigation.

Scott is an experienced trial lawyer whose practice focuses on high-stakes patent litigation and complex commercial disputes. He has experience representing both plaintiffs and defendants in a wide variety of intellectual property disputes in federal courts across the United States. Scott has experience as trial counsel in cases related to wireless phone and data transmission, oil-field tools and processes, integrated circuitry, operating system software, environmental control systems, and pharmaceutical technologies. He is a registered patent attorney.

Before earning his law degree, Scott worked as a patent agent for a Houston law firm. While there, he drafted and prosecuted numerous patent applications related to electrical and mechanical systems. Scott has also worked as a design engineer for a major oilfield services company.


Representative Matters

  • Dynamic 3D Geosolutions LLC v. Halliburton et al. Represents Halliburton in a patent infringement suit in the Western District of Texas related to geophysical software used to produce three-dimensional models of subterranean formations.
  • Dynamic 3D Geosolutions LLC v. LMKR et al. Represents LMKR in a patent infringement suit in the Western District of Texas related to geophysical software used to produce three-dimensional models of subterranean formations.
  • Legacy Separators LLC v. Halliburton et al. Represents Halliburton in a patent infringement and trade secret case pending in the Southern District of Texas related to downhole separators used to remove gas from production fluids in subterranean wells.
  • Deere & Co. v. Alamo Group and Bush Hog Inc. Lead trial counsel for Alamo and Bush Hog Inc. in a patent infringement lawsuit related to flex-wing rotary cutters. After a three-week trial in Davenport, Iowa, the jury returned a verdict in favor of Alamo and Bush Hog, finding the asserted patent not infringed and invalid on multiple grounds. The case is currently on appeal.
  • In re: Oil Spill by the Oil Rig Deepwater Horizon. Represented Halliburton and Sperry Sun in the MDL litigation related to the Macondo/Deepwater Horizon blowout.
  • Weatherford International v. Halliburton. Represented Halliburton in a suit in which Weatherford alleged infringement of patents covering method of forming composite parts for use in downhole tools, such as frac plugs, bridge plugs, and packers. The case settled on favorable terms.
  • Bedrock v. Google. Represented Bedrock as trial counsel in a patent infringement action related to a software patent covering a method for improving the speed and efficiency of web servers. Following a six-day trial in Tyler, Texas, the McKool Smith team won a jury verdict in favor of Bedrock in which the jury found the patent infringed, valid, and awarded a royalty to Bedrock. The case then settled prior to the entry of judgment.
  • i2 Technologies v. SAP. Represented i2 Technologies as plaintiff against SAP asserting infringement of seven patents. The case settled shortly after the Markman hearing.
  • US Synthetic Corporation and Halliburton Energy Services Inc. Represented US Synthetic and Halliburton against patent infringement claims filed by ReedHycalog based on four patents related to leached diamond drill-bit cutting elements. The case settled favorably shortly after the pretrial conference.


Rankings & Honors

  • Ranked among the Top 50 Most Active Attorneys Representing Patent owners and Top Performing Attorneys Representing Patent Owners in Patexia's PTAB Intelligence Report (2023)
  • Recognized by "Best Lawyers in America" (2024)
  • Named a Texas "Rising Star" by Super Lawyers, 2008-2012


Community & Professional Activities

  • American Intellectual Property Law Association
  • Past director, Intellectual Property Section of the Dallas Bar Association

Media & Events




J.D., cum laude, University of Houston Law Center, 2002

  • Order of the Barons
  • Articles editor, Houston Law Review

M.S., Mechanical Engineering, Rice University, 1997

B.S., magna cum laude, Aerospace Engineering, Texas A&M University, 1995

Court Admissions

  • State of Texas
  • The U.S. District Courts for the Northern and Eastern Districts of Texas
  • The U.S. Patent and Trademark Office

Bar Associations

  • American Bar Association
  • Dallas Bar Association
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