Pilar Stillwater

San Francisco
Phone: +1 415.365.7444
3 Embarcadero Center, 26th Floor
San Francisco, CA 94111

Pilar Stillwater is a counsel in the Intellectual Property and Litigation groups in Crowell & Moring's San Francisco office, with a background in molecular and cell biology. Her practice focuses on intellectual property litigation, with an emphasis on patent infringement disputes. Pilar has litigated patent infringement cases involving a wide range of technologies, including pharmaceuticals, prefabricated concrete slabs, and wireless LAN technology. Pilar also counsels clients on patent infringement and licensing issues in the medical device and biopharmaceutical areas.  

Pilar earned her B.S. in molecular, cell, and developmental biology with highest honors in the major and college honors from the University of California, Santa Cruz in 2004. She received her J.D. from the University of California, Hastings, cum laude, in 2008, where she was the executive production editor of the Hastings Law Journal

Prior to joining Crowell in 2012, Pilar was an associate in a prominent San Francisco litigation boutique firm, where she represented both plaintiffs and defendants in patent infringement and complex commercial litigation disputes.

Pilar is actively involved in pro bono work and has represented clients in debt-collection and copyright disputes. She was the first attorney at Crowell & Moring to successfully take a third-party debt collection case to trial in collaboration with the East Bay Community Law Center. Pilar also supervises students participating in the University of California, Hastings’ Startup Legal Garage, a legal clinic providing services to startup organizations in the Bay Area.


Admitted to practice: California, the Federal Court of Appeals for the Ninth Circuit, the Federal District Courts for the Northern, Central, and Eastern District of California, and the Eastern District of Texas.

Professional Associations

  • American Bar Association: Science & Technology and Intellectual Property Law Sections
  • San Francisco Intellectual Property Law Association


  • "Faster Than a Speeding Bullet? Deferrals, Postponements and Stays of Section 337 Investigations," XXIII 337 Reporter Summer Associate Edition 41 (2007). Co-Authors: Pilar Stillwater and Nimrod Haim Aviad.

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Firm News & Announcements

Jan.09.2017 Crowell & Moring Elects Six New Partners and Promotes 19 Associates to Counsel