Photo of David S. Cannon

David S. Cannon

San Francisco
T: 415.774.3216
F: 415.403.6208


  • J.D., University of California, Hastings, 2000, magna cum laude
  • M.A., University of Virginia, 1993
  • B.A., University of California, Berkeley, 1989
  • California
Publications & News

David Cannon is a partner in the Government Contracts, Investigations & International Trade Practice Group in the firm's San Francisco office.

Areas of Practice

Mr. Cannon handles high-stakes litigation, including banking, commercial litigation and intellectual property disputes.  In banking-related matters, he has handled securities fraud claims, as well as mortgage and lender disputes stemming from the financial crisis.  This work has included large scale class actions in federal and California state courts.  With commercial disputes, he has helped technology companies, manufacturers, investors, insurers and project sponsors successfully defeat tort, unfair competition, false advertising, product defect, construction defect, insurance coverage and environmental contamination claims. 

His intellectual property experience has included trade secret and trademark matters as well as licensing issues and contract disputes. He has a keen understanding of the business challenges  technology companies face when their core intellectual property is at stake.  His IP litigation cases have included numerous multi-million dollar claims.

His clients have included Wells Fargo, JP Morgan Chase, Hewlett-Packard, Mitsui, Qualcomm, Roche Molecular Systems, and Louisiana-Pacific.

Prior to private practice, Mr. Cannon served as a judicial extern for Chief Judge Marilyn Hall Patel of the Northern District of California. He has also served as an assistant district attorney in the Misdemeanor Trial Unit for the City and County of San Francisco, where he first-chaired seven trials, winning every one.  Mr. Cannon serves on the Boards of the San Francisco Heritage and The SMART Program, a San Francisco-based, non-profit organization dedicated to ensuring that middle school students have access to high quality education regardless of income.

  • Government Contracts, Legal 500, 2015


  • Noble v. Greenberg Traurig, et al. - Defending Wells Fargo Capital Finance, LLC against putative class action claims of aiding and abetting securities fraud related to $700 million mortgage fund

  • Adams Canyon Ranch v. Wells Fargo Capital Finance - Defended Wells Fargo against tortious interference with contract claims relating to a third-party loan refinance. Claims were voluntarily dismissed

  • JPMorgan Chase Bank, N.A. - Represented JPMorgan Chase in various state and federal courts in mortgage-related consumer class actions

Intellectual Property

  • MMCA v. Hewlett Packard - Trade secret claims relating to anti-counterfeiting investigations
  • Western Wind Energy v. Savitr Capital - Defeated request for preliminary injunction on trademark infringement claims
  • Broadcom v. QUALCOMM - Antitrust, patent, contract and misrepresentation claims related to standard setting organizations
  • Applera v. Roche Molecular Systems - Licensing rights related to polymerase chain reaction technology


  • In re Oil Spill by Deepwater Horizon - Defense of claims against minority investor in BP’s Macondo oil well project
  • Safeco Insurance Corporation - Negotiated significant coverage settlements related to clergy abuse claims
  • Davis v. Louisiana-Pacific - Defense jury verdicts on all claims in $100 million class action product defect action
  • Madison Marquette v. DPR - Obtained multimillion-dollar settlement on construction defect (water intrusion) claims
  • Saunders v. General Motors - Favorable settlement on unfair competition and false advertising class action claims
  • Board Member, San Francisco Heritage Foundation
  • Board Member, The SMART Program