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Kaustuv M. Das



K.M. Das, a counsel in the firm's Patent Litigation practice, has over ten years’ of technology and intellectual property litigation and licensing experience. K.M. has litigated patents in a broad range of technologies, including mechanical patents, medical devices, signal processing and software, and has prepared numerous infringement and freedom to operate opinions. K.M. has also drafted and negotiated numerous patent, joint development, cooperative development, and technology licensing agreements relating to semiconductors and related technologies.

K.M. is passionate about community service and pro bono activities, and has argued immigration and prisoners' rights cases before the U.S. Court of Appeals for the Ninth Circuit.

Prior to joining Perkins, K.M. worked in the semiconductor industry providing legal counsel on all intellectual property related issues to various technical groups, including hybrid DRAM memory, flash memory, LED, display, and solar.

Professional Recognition

  • King County Bar Association, President’s Award, 2013
  • Listed in Washington Law & Politics, “Washington Rising Stars”
  • Davis Wright Tremaine LLP's " Pro Bono Attorney of the Year," 2004
  • King County Bar Association Housing Justice Project "Attorney of the Year," 2004

Professional Leadership

  • South Asian Bar Association of Washington, Treasurer, 2004 - 2008; President, 2011 - 2012
  • King County Bar Foundation, Board of Trustees, 2008 - 2010
  • King County Bar Association Secretary, 2012 - 2013; Trustee 2012 - present 
  • Washington State Patent Law Association’s Pro Bono Committee, 2007 - 2010
  • Asian Bar Association of Washington, Board Member, 2009 - 2010
  • Joint Asian Judicial Evaluation Committee, Chair, 2008
  • AIPLA and American Bar Association, Member

Related Employment

  • Seattle University School of Law, Adjunct Professor, Patent and Trade Secret Law, 2013 - present
  • Micron Technology Inc., Technology Licensing Counsel, 2010 - 2011
  • Merchant & Gould, Seattle, WA, Associate, 2007 - 2009
  • Davis Wright Tremaine LLP, Seattle, WA, Summer Associate, 2002; Associate, 2003 - 2007


  • University of Washington School of Law, J.D., Intellectual Property, high honors, The Order of Barristers, The Order of the Coif, 2003
  • California Institute of Technology, Ph.D., Mathematics, 1994
  • California Institute of Technology, M.S., Mathematics, 1991
  • Vassar College, B.A., Mathematics, Phi Beta Kappa, 1989

Bar Admissions

  • Washington

Court Admissions

  • U.S. Supreme Court
  • U.S. Court of Appeals for the Federal Circuit
  • U.S. Court of Appeals for the Ninth Circuit
  • U.S. District Court for the Western District of Washington
  • U.S. District Court for the Eastern District of Washington
  • U.S. District Court for the District of Idaho
  • U.S. District Court for the Eastern District of Texas