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Marcus Rabinowitz is an associate in McKool Smith's Dallas office. He focuses his practice on intellectual property and complex commercial litigation. Prior to joining the firm, he was a judicial intern for the Honorable Judge David Hittner and the Honorable Judge Lee Rosenthal, both of the United States District Court for the Southern District of Texas. He also has experience prosecuting patents.

Marcus graduated number one in his class at the University of Houston Law Center. While attending law school, Marcus was an associate editor of the Houston Law Review and was an officer for the Intellectual Property Student Organization.

Prior to law school, Marcus attended the University of Oklahoma, where he majored in aerospace engineering. 


Representative Matters

  • Legacy Separators, LLC v. Halliburton Energy Services, Inc. (S.D. Tex.): Representing Halliburton as a defendant in a patent infringement and trade secret misappropriation suit relating to centrifugal gas separators for use in electric submersible pump systems. Managed and coordinated expert witnesses, deposed expert and fact witnesses, and developed key technical and legal defenses relating to infringement and invalidity.
  • Optis Wireless Technology et al. v. ZTE (E.D. Tex): Represented plaintiffs in a patent infringement suit against ZTE in the Eastern District of Texas involving standard-essential and implementation patents related to LTE and mobile operating systems. The case settled after a favorable claim construction ruling.
  • Eastern District of Texas Patent Infringement Defense: Defended entity from patent infringement suit relating to network quality of service and data management systems. Managed discovery, non-infringement experts, analysis, and strategy, and claim construction briefing. Secured a favorable settlement for client prior to claim construction.
  • Truitt et al. v. Events Downrange LLC et al. (Tex. 422nd Judicial District): Co-chaired defense of property owner against nuisance suit brought by neighboring landowners. Challenged and successfully invalidated an unconstitutional Texas statute.
  • Adelos v. Halliburton Energy Services, Inc. (Montana District Court): Supported development of defenses and analysis of technologies in patent suit involving distributed fiber optic sensing utilized in the oilfield industry. Secured a favorable settlement for Defendant.
  • Centego II, LLC v MetroSplash Systems Group, Inc. et al. (Tex. 298th Judicial District): Represented plaintiff and counter-defendant in breach of contract, fraud, and breach of fiduciary duty lawsuit. Successfully defended individual against allegations of fraud.


Rankings & Honors

  • Recognized in Best Lawyers in America as "Ones to Watch" for Intellectual Property, 2020

Media & Events


J.D., University of Houston Law Center, 2015

B.S., Aerospace Engineering, University of Oklahoma, 2012

Court Admissions

  • State of Texas
  • The U.S. District Court for the Southern and Eastern Districts of Texas
  • United States Patent and Trademark Office
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