About

David Tsai is a Partner at Vinson & Elkins LLP in San Francisco, specializing in patent, trade secret, and product defect litigation for biotechnology, medical devices, software, and hardware industries. He is also fluent in Taiwanese and Chinese Mandarin. David Tsai is a Partner at Vinson & Elkins LLP in San Francisco, California. With a focus on patent, trade secret, complex breach of contract, and product defect litigation, David represents companies in the biotechnology, medical devices, software, and hardware industries. His expertise spans pharmaceuticals, genetic engineering, Internet and mobile apps, semiconductors, set-top boxes, smartphones, solar wafers, and light-emitting diodes (LED/OLED). In addition to his litigation experience, David has second-chaired international arbitration cases, handled copyrights and trademarks disputes, and prepared U.S. electrical engineering patent applications. He is also skilled in drafting patentability, freedom-to-operate, and non-infringement opinions, as well as handling patent interferences in biotechnology. David assists clients in patent negotiations, licensing, and overall intellectual property strategy. David's insights have been featured in various business and technology publications, including The New York Times. He has also written and lectured on topics such as Hatch-Waxman/Abbreviated New Drug Application (ANDA) litigation, standard essential patents, FRAND/RAND royalties, Internet software applications, stem cell gene therapy, and U.S. patent law. Prior to his legal career, David worked in product management at Internet startups, focusing on developing online collaborative communications platforms. He also led the product management team for a real-time PCR DNA detection product line and co-developed the first online problem sets at Stanford University. David's accomplishments have not gone unnoticed, as he has been recognized as a top 50 California Lawyer on the Fast Track by The Recorder, a Super Lawyer in Intellectual Property Litigation, and a Best Lawyer Under 40 by the National Asian Pacific American Bar Association. Fluent in spoken Taiwanese and Chinese Mandarin, David represents over 30 leading companies based in Taiwan, China, and Korea.

Legal Issues

Patents

Patent Appeals, Patent Litigation, Patent Prosecution

Antitrust Law

Intellectual Property

Business Law

Business Contracts, Business Dissolution, Business Finance, Business Formation, Business Litigation, Franchising, Mergers & Acquisitions, Partnership & Shareholder Disputes

Certificates

No Certifications

Languages

• Chinese: Spoken

Accepted Jurisdictions

Experience

• Partner
  Pillsbury Winthrop Shaw Pittman LLP
  2018
• Partner
  Vinson & Elkins LLP
  2015
• Partner/Counsel
  Perkins Coie LLP
  2004

Education

Associations

Costs

Location