David H.Seidel


San Francisco + 1.415.875.5748

David Seidel is a litigator with experience representing private and public entities in disputes across a wide range of substantive legal areas in federal and state courts. His practice also includes class action litigation.

David's experience ranges from litigating federal court copyright claims and a toxic tort class action, to working on construction disputes in state court and on a unique arbitration proceeding concerning the placement of an initiative on the California ballot. Through the breadth of matters he has worked on, David has gained significant experience in all dimensions of litigation, including researching and analyzing complex legal issues, drafting pretrial motions, preparing matters for summary judgment, and assisting at trial and arbitration. David also served one term as a law clerk to Judge Jill A. Otake at the U.S. District Court for the District of Hawaii where he worked on both criminal and civil matters, including civil rights and administrative cases.

David is also committed to pro bono representation, highlighted by the representation of two Guatemalan refugees and their children in their successful application for asylum. He also successfully advocated for a disabled veteran in his application for veteran's benefits.


  • Jones Day team wins asylum for two Guatemalan women and their four minor childrenA Guatemalan woman and her daughter-in-law who had both endured extreme violence and oppression fled Guatemala and entered the United States with their four minor children.
  • Chevron defeats class action relating to offshore gas well blowoutJones Day successfully represented Chevron Corporation in a class action lawsuit originally brought by 65,000 Nigerians seeking $5 billion on the claim that a natural gas well blowout six miles offshore caused widespread health and fishing impacts to an area roughly the size of New Jersey.
  • Synopsys wins $30 million jury verdict and obtains permanent injunction in software IP actionAfter a two-week trial, Jones Day obtained a $30.4 million jury verdict on behalf of Synopsys, Inc. on its copyright infringement claim against ATopTech, Inc. Synopsys is a leader in electronic design automation (EDA) software.
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