Erwin Cena focuses his practice on patent litigation and counseling inventors and businesses on options for protecting and commercializing their intellectual property. He also has experience in the areas of commercial litigation, products liability, personal injury and construction law.

Mr. Cena is actively involved in pro bono work. He is a member of the firm’s Pro Bono Committee where he identifies opportunities to serve the local and surrounding communities in need of legal counsel.

Prior to joining the firm, Mr. Cena worked as an associate at another San Diego law office where he represented plaintiffs and defendants in federal and state courts. While attending law school, he served as the senior articles editor for the UC Davis Journal of International Law and Policy. Mr. Cena also served a law clerk for the United States Attorney’s Offices in Sacramento, California, and in San Jose, California.

Before launching his legal career, Mr. Cena was employed by Hewlett-Packard where he was involved in the research and development of manufacturing processes for large-format inkjet printer cartridges. He also served in the United States Navy.

Mr. Cena is a member of the firm's Pro Bono Committee.

Professional & Community Activities

Federal Bar Association, Member; Membership and Public Relations Committees

Federal Bar Association of San Diego

San Diego County Bar Association, Member


  • University of California, Davis School of Law, J.D. (2010)
  • University of Notre Dame, B.S., Electrical Engineering (2001)
  • University of Notre Dame, B.A., History (2001)

Bar Admissions

  • California (2010)


  • U.S. District Court for the Southern District of California
  • U.S. District Court for the Central District of California
  • U.S. Court of Appeals for the Federal Circuit
  • U.S. District Court for the Eastern District of Texas
  • U.S. District Court for the Northern District of California
  • U.S. District Court for the Western District of Michigan

Who We Are

What fully engaged means to me:

To me, “Fully Engaged Means” listening to the client, identifying and addressing the key legal questions, and always thinking about cost-effective means for resolving disputes.

Suite 400, 12730 High Bluff Drive
San Diego, CA, 92130
t +1 858.350.6162
f +1 858.408.3952

Erwin L. Cena

Experience Highlights

Mark A. Barry, M.D. v. Medtronic, Inc.
As lead trial counsel to the inventor and patent owner, obtained a verdict of willful infringement and an award of $20.3 for past damages after a more