Erwin L. Cena

12255 El Camino Real Suite 250, San Diego, CA USA 92130

9720 Wilshire Blvd PH, Beverly Hills, CA USA 90212


Erwin Cena focuses his practice on intellectual property 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 served on the firm’s Pro Bono Committee where he identified opportunities to serve the local 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.


As counsel to the inventor and patent owner, obtained a verdict of willful infringement and an award of $20.3 for past damages after a seven day jury trial in the Eastern District of Texas. The Court increased the award to $23.6 million after ruling on post-trial motions. The two related inter partes review hearings resulted in an exceedingly rare final determination upholding the patentability of all challenged claims.

Counsel to consumer electronics company in intellectual property dispute in Northern District of California involving allegations of trademark and copyright infringement and counterclaims of patent infringement. Case settled before trial.

Defended Norwegian-based company in patent infringement dispute (Delaware District Court) pertaining to electromagnetic detection of hydrocarbon deposits in ocean floor. Identified invalidating prior art after which the case settled before expert discovery phase.

Defended consumer electronics and telecommunications company in patent infringement dispute (Southern District of California) pertaining to on-demand bandwidth requests by client devices and selective allocation of such bandwidth by mobile devices depending on Quality of Service needs. Case was dismissed early in litigation before significant fact discovery.

Counsel to major aerospace company in breach of contract and declaratory relief action against supplier in Los Angeles Superior Court. The case resulted in a favorable settlement to the client after fact discovery and successful efforts to bifurcate issues for trial.

Counsel to defendant cloud payment/credit card processing company in breach of contract and fraud case in San Diego Superior Court. The case resulted in favorable settlement to client before significant discovery costs incurred.


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)


California (2010)

Court Admissions

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

Professional & Community Activities

Federal Bar Association of San Diego, Member 

Federal Bar Association, Committee on Mock Arguments, Member

San Diego County Bar Association, Member

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