Paul Stewart is a partner in our Orange County Office.
Mr. Stewart represents clients in all types of intellectual property disputes, including those involving patents, trademarks, trade secrets, unfair competition claims, and data privacy claims. Mr. Stewart's practice also includes the defense of class actions in these areas. He has represented clients in district courts throughout the country and before the United States Courts of Appeals for the Federal Circuit and the Ninth Circuit.
Mr. Stewart's cases have involved a vast array of technologies and products, including medical devices, semiconductor processing, computer systems, computer software, and construction equipment. He has also represented many clients in non-technical disputes relating to trademarks, trade dress, and copyrights.
Mr. Stewart joined the firm in 1991 and became a partner in 1996.
Clerk Experience
Honorable James Browning, Circuit Judge, U.S. Court of Appeals for the Ninth Circuit, 1990-1991
Mr. Stewart has received multiple awards and has been honored for his legal accomplishments:
- Named a "Top Author" in JD Supra's 2022-2019 "Readers' Choice Awards" for Patents
- Selected for inclusion in the "Southern California Super Lawyers" list for his work in intellectual property litigation by Super Lawyers magazine (2009-2021)
- Recognized as an "Intellectual Property Trailblazer" in the National Law Journal's (NLJ) 2016 list of featured attorneys who impacted patent law
- Named as one of Southern California's "Rising Stars" in intellectual property law in a survey of his peers, published in Los Angeles Magazine and Super Lawyers magazine, in 2004, 2005 and 2006
Justin Gillett and Paul Stewart, "The Fed. Circ. In August: New Claim Constructions In IPR," Law360 (August 2023) (PDF)
Brandon Smith and Paul Stewart, "The Fed. Circ. In July: Reissue Claims And The Original Patent," Law360 (July 2023) (PDF)
Karen Cassidy Selvaggio and Paul Stewart, "The Fed. Circ. In June: A Lesson On Citing With Particularity," Law360 (June 2023) (PDF)
Ben Katzenellenbogen and Paul Stewart, "Why Fed. Circ. Should Explain Treatment Of Prior Art Ranges," Law360 (May 2023) (PDF)
Jessie Yang, Daniel Kiang, Paul Stewart, "Fed. Circ. In April: The Trademark Tacking Doctrine's Reach", Law360 (April 2023) (PDF)
Author, "The Fed. Circ. In March: Challenges To USPTO Rulemaking", Law360 (March 2023)
Author, "The Fed. Circ. In February: Infringement Defense Challenges," Law360 (February 2023)
Author, "Lessons from Fed. Circ. Ruling on Lung Disease Patent," Law360 (January 2023)
Author, "Fed. Circ. Conveys Breadth Of IPR Claim Amendment Process," Law360 (December 2022).
Author, "Fed. Circ. in November: The Presumption of TM Validity," Law360 (November 2022).
Author, "Fed. Circ. In Oct.: Patent Venue's Remote Work Questions," Law360 (October 2022).
Ben Katzenellenbogen and Paul Stewart, "What USPTO's Disclosure Duties Notice Says And Doesn't Say," Law360 (September 2022).
Ben Katzenellenbogen and Paul Stewart, "The Federal Circuit in August: Considerations in Assignor Estoppel," Law360 (August 2022).
Michael Friedland and Paul Stewart, "The Federal Circuit in July: A 'Prior Art' Decision to Know," Law360 (July 2022).
Author, "The Federal Circuit in June: A Few Decisions to Know," Law360 (July 2022).
Joseph Re and Paul Stewart, "Manufacturers May Want to Lease -- Not Sell -- Their Patented Medical Devices," Medical Device and Diagnostic Industry (MD+DI) (June 2017).
Paul A. Stewart and Joan Y. Chan, “Saving or Waiving Attorney-Client Privilege During IP Due Diligence: Supporting or Criticizing Hewlett-Packard v. Bausch & Lomb, Inc.,” Association of Business Trial Lawyers Report, Vol. XI, No. 4, Winter 2009/2010.
Author, Knobbe Martens Litigation Blog