David Jeanchung Tsai
Pillsbury Winthrop Shaw Pittman LLPDavid Tsai is a Partner in Vinson & Elkins LLP’s San Francisco office. David's practice focuses on patent, trade secret, complex breach of contract, and product defect litigation for companies innovating biotechnology (pharmaceuticals and genetic engineering), medical devices, software (Internet and mobile apps), and hardware (semiconductors, set-top boxes, smartphones, solar wafers and light-emitting diodes/LED/OLED). His legal experience includes second chairing international arbitration cases, litigating in the areas of copyrights and trademarks, preparing and prosecuting U.S. electrical engineering patent applications, drafting patentability, freedom-to-operate and non-infringement opinions, as well as patent interference in the area of biotechnology. He also represents clients in patent negotiations, licensing and overall intellectual property strategy. David has been quoted in various business and technology publications including The New York Times. He has written and lectured on 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. David also previously 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 has been recognized as a top 50 California Lawyer on the Fast Track by The Recorder, Super Lawyer in Intellectual Property Litigation, and Best Lawyer Under 40 by the National Asian Pacific American Bar Association. David is fluent in spoken Taiwanese and Chinese Mandarin and represents over 30 leading Taiwan, China and Korea based companies.
- 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
- California
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- 9th Circuit
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- Federal Circuit
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- Chinese: Spoken
- Partner
- Pillsbury Winthrop Shaw Pittman LLP
- - Current
- Partner
- Vinson & Elkins LLP
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- Partner/Counsel
- Perkins Coie LLP
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- Harvard University
- B.A.
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- Stanford University
- M.S.
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- Santa Clara University School of Law
- J.D.
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- Super Lawyer
- Super Lawyers
- Best Under 40
- National Asian Pacific American Bar Association
- Top 5 Associates To Watch In California
- Daily Journal
- Top 50 On The Fast Track
- The Recorder
- Inaugural Young Alumni Rising Star Award
- Santa Clara University School of Law
- Bar Association of San Francisco JDC
- Board of Directors
- - Current
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- Asian American Bar Association (AABA)
- Board of Directors
- - Current
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- Law Alumni Board of Directors
- - Current
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- Silicon Valley Intellectual Property Law Association (SVIPLA)
- Immediate Past President, Board of Directors
- - Current
- Activities: President, 2012-2013; VP, 2011-2012, Secretary, 2010-2011, Treasurer, 2009-2010; Program Chair, 2008-2009
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- California State Bar # 244479
- Member
- - Current
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- AIDS Legal Referral Panel
- Board of Directors
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- Bar Association of San Francisco (BASF)
- Board of Directors
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- American Bar Association
- Section of Litigation Committee Co-Chair
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- BASF Barristers Club
- Board of Directors
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- Activities: Diversity Director, 2009-2010
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- Bay Area Lawyers for Individual Freedom (BALIF)
- Co-Chair, Board of Directors
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- Activities: Co-Chair, 2009-2011, Treasurer, 2007-2009
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- Minority Bar Coalition
- Co-Chair
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- Santa Clara County Bar Association
- Board of Directors
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- Google Scholar: A New Way to Search for Cases and Related Legal Publications
- The Bar Association of San Francisco
- Website
- Website
