Rosanna Gan

Rosanna W. Gan

Senior Counsel

  • Print Page
  • Email Page
  • Share this page
Intellectual Property
Intellectual Property
San Francisco

Rosanna is an attorney in the firm's Intellectual Property Practice Group and works on patent, trademark, and copyright litigation matters. In addition, she works on IP transactions involving licensing and due diligence. Rosanna is also an attorney in the Appellate Practice Group where she applies an array of analytical skills to a wide range of appeals. Prior to joining Hanson Bridgett, Rosanna worked as an IP litigator in New York City, where she gained significant experience handling all stages of patent litigation, including pre-suit investigation, motions to dismiss, discovery, claim construction, summary judgment, trial, and post-trial motions.

Rosanna brings a depth of technical expertise to her practice, having earned both her B.S. and M.Eng. in Bioengineering from the University of California, San Diego. She has worked on cases involving pharmaceutical drugs, medical devices, biologics, consumer products, cosmetics, and ecommerce, textiles, lasers, and fabrication processes.


"The Humans Win Round One," co-author, Daily Journal (September 2022)

"Circuit Decision on AI Complicates Inventor Strategies," co-author, Bloomberg Law (September 2022)

"American Axle: Prolonging the Controversy," co-author, World Intellectual Property Review (July 2022)

"Anti-SLAPP Motions and Hearsay," The Daily Journal (July 2022)

"Arbitrator Disclosures: The Effects of Monster Energy," Appellate Insight (May 2022)

“The Collateral Order Doctrine,” The Daily Journal (January 2022)

"Notice of Appeal – Back to Basics to Avoid Disaster (Part Two)," Appellate Insight (May 2021)

"Summary Judgment After Sweetwater: More Motions Denied," Daily Journal (January 2020)

See All Publications


"Litigation & Arbitration Roundup: Analyzing Recent Appellate Decisions Affecting Litigators," 28th Annual MCLE Spectacular, Contra Costa County Bar Association (November 2022)

See All Presentations


California Lawyers Association, Wiley W. Manuel Pro Bono Legal Services Award (2021)


J.D., Boston University School of Law (2013)

M. ENG., University of California, San Diego (2009)

B.S., magna cum laude, University of California, San Diego (2008)

Admissions And Courts


New York



San Francisco

415-995-5116 Direct Phone
415-995-3574 Fax

Email Attorney