Knobbe/Martens: Intellectual Property Law
Lauren Keller Katzenellenbogen
Our persuasive arguments and creative strategies pave the way to victory throughout all phases of litigation.

Lauren Keller Katzenellenbogen


At a Glance

  • J.D. Harvard Law School
  • B.S. Civil Engineering, Duke University

  • State Bar of California
  • U.S. Court of Appeals for the Federal Circuit
  • U.S. District Court - Central District of California
  • U.S. Patent and Trademark Office

Professional Profile 

Lauren Katzenellenbogen litigates all types of intellectual property disputes, including claims pertaining to patents, trademarks, unfair competition, trade secrets and copyrights. For nearly two decades, she has represented businesses and individuals in litigation involving an array of industries, including medical and mechanical devices, consumer products, fashion, energy drinks and entertainment.

With a practice that includes high-stakes patent litigation, trademark and counterfeiting claims, Lauren has served as counsel in numerous cases in federal courts across the U.S., as well as before the Trademark Trial and Appeal Board (TTAB). She has represented clients that range from innovative start-ups to established brands, including Oakley, Monster Energy, NASCAR, Bon-Ton Stores, Razor, Volcom, Specialized Bicycle, Mexicana Airlines and I-Flow Corporation.

Co-chair of the firm’s Consumer Products Litigation team, Lauren is a Super Lawyers Southern California “Rising Star" and listed among the magazine’s "Top Women Attorneys in Southern California.” A focus on creative solutions, attention to detail and compelling arguments drives every action Lauren takes. Competitive by nature, Lauren’s personal drive to win allows her to consistently deliver potent strategies that position her client to succeed in and out of court.

Active in the community in which she lives and works, Lauren is involved in the Orange County Intellectual Property Law Association (OCIPLA), and currently serves as OCIPLA’s Vice President for the 2017-2018 term.


  • Harvard Law School (J.D. 2002)
  • Duke University (B.S. Civil Engineering 1999), magna cum laude, Tau Beta Pi Engineering Honor Society
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