Mark D. Selwyn


Partner-in-Charge, Palo Alto Office

Co-Chair, Intellectual Property Litigation Practice Group

Selwyn, Mark D.

Mark Selwyn is the partner-in-charge of the firm's Palo Alto office, a partner in the Litigation/Controversy Department and co-chair of the Intellectual Property Litigation Practice Group. He joined the firm in 1994.


Mr. Selwyn’s practice focuses on intellectual property litigation. Major corporations have relied on him to litigate biomedical, electrical, chemical, mechanical, and business method patents involving a diverse array of technologies, including wireless communications, electronic commerce, digital cameras, solid state disk drives, location sensing, biosensors, water and wastewater filtration, integrated circuits and angioplasty catheters. He has represented clients in dozens of patent and other intellectual property cases in federal courts throughout the country and before the International Trade Commission (ITC). Mr. Selwyn counts among his clients many of Silicon Valley’s most prominent technology companies.

Honors & Awards

  • Named to the Daily Journal’s exclusive lists of the "Top 75 IP Litigators in California" and the "Top 100 Lawyers in California" in 2009-2013 and the “50 Leading IP Litigators in California” in 2008
  • Recognized for exceptional standing in the legal community in the area of intellectual property in Chambers USA: America's Leading Lawyers for Business, 2005-2013 editions
  • Named a 2013 leading practitioner in patent law by IAM Patent 1000: The World's Leading Patent Practitioners
  • Selected as a 2013-14 "IP Star" by Managing IP magazine, a guidebook that identifies leading lawyers in the United States
  • Named a "Life Sciences Star" in the 2012 and 2013 editions of LMG Life Sciences for intellectual property
  • Named as one of the "Top 100 Attorneys in Northern California" in 2011 by Super Lawyers magazine
  • Recognized in the 2009-2013 editions of Northern California Super Lawyers for his intellectual property litigation practice
  • Named a "Local Litigation Star" and a "California Litigation Star" for Intellectual Property in the 2012 and 2013 editions of Benchmark Litigation
  • Recognized as a "Massachusetts Super Lawyers Rising Star" in intellectual property litigation in the May 2005 edition of Boston Magazine

Publications & News


March 11, 2014

WilmerHale Again Named to Daily Journal’s “Top Verdicts” List

For the second consecutive year, the Daily Journal included WilmerHale in its "Top Verdicts" list, an annual list that recaps California's most significant verdicts over the past 12 months.

September 11, 2013

Mark Selwyn Honored Among Daily Journal’s 2013 “Top 100 Lawyers in California”

The Daily Journal has selected Partner Mark Selwyn to its 2013 list of "Top 100 Lawyers in California," an annual list honoring attorneys handling the most cutting-edge work in litigation, regulation, and corporate transactions in the region.

July 16, 2013

Palo Alto Attorneys Featured in 2013 Northern California Super Lawyers

Twenty-two WilmerHale attorneys ranked in the tenth annual Northern California Super Lawyers listing for 2013.

June 18, 2013

Bay Area News Names WilmerHale Among “Top Workplaces”

WilmerHale's Palo Alto office has been named among the Bay Area's "Top Workplaces" by Bay Area News.

June 17, 2013

WilmerHale Earns Top Rankings in LMG Life Sciences Guide

The 2013 edition of LMG Life Sciences has been released, and it includes the recognition of nine WilmerHale practice areas and 17 attorneys.

June 4, 2013

White House Announces Patent Initiatives

Today, the White House announced several executive actions and legislative recommendations aimed at curbing aggressive patent assertion.

May 31, 2013

Fourteen WilmerHale Partners Named as 2013-14 IP Stars by Managing IP

Managing IP magazine, a Euromoney Legal Media Group publication, has released its inaugural edition of IP Stars—a guidebook that identifies the leading IP firms and lawyers in the United States. WilmerHale is among the top nationally ranked firms in the guide and is rated highly in multiple states.

May 24, 2013

Chambers USA 2013 Final Results Announced

Chambers USA: America's Leading Lawyers for Business today announced its final rankings for the 2013 edition, in which 93 WilmerHale lawyers and 44 firm practice areas have been recognized as leading in their field.

May 13, 2013

WilmerHale Named to The National Law Journal’s IP Hot List for Second Consecutive Year

Again in 2013, WilmerHale was selected as one of 20 law firms that have demonstrated creative, formidable talent in litigation, patent prosecution and deal-making.

April 22, 2013

Selwyn and Slenkovich Selected to Daily Journal’s 2013 List of “Top Intellectual Property Lawyers”


Skip Navigation Links.


JD, Columbia Law School, 1993, Harlan Fisk Stone Scholar; Articles Editor, Columbia Journal of Law and Social Problems

AB, magna cum laude, Harvard University, 1990, John Harvard Scholar

Bar Admissions



New York


The Hon. Naomi Reice Buchwald, US District Court for the Southern District of New York, 1993 - 1994