James L. Quarles, III


Quarles III, James L.

James (Jim) Quarles is a partner in the firm's Litigation/Controversy Department, a member of the Intellectual Property Litigation and Appellate and Supreme Court Litigation Practice Groups and a former member of the Executive Committee. He joined the firm in 1975. Mr. Quarles is a former managing partner of Hale and Dorr's Washington office.


Mr. Quarles' practice has been exclusively devoted to litigation. For the past 15 years, his practice has focused on intellectual property litigation matters. Most recently, Mr. Quarles has tried (or co-tried with Bill Lee) to a successful conclusion 9 matters before the International Trade Commission, and, together with Mr. Lee, represented Broadcom Corporation in its litigation against Qualcomm Corporation. He has extensive experience with the trial of complex civil matters, ranging from the successful trial defense of Legent Corporation in a shareholders' class action to the defense of ITT Corporation in a claim arising out of the construction of the Nine Mile Point II Nuclear station in Oswego, New York (selected as one of the 15 outstanding defense jury verdicts of 1992 by The National Law Journal). Mr. Quarles has argued before the United States Supreme Court and Court of Appeals for the Federal, First, Second, Third, Fourth, Sixth and District of Columbia Circuits.

Prior to joining the firm, Mr. Quarles clerked for the Honorable Frank A. Kaufman of the US District Court for the District of Maryland. After his clerkship, he was appointed an assistant special prosecutor on the Watergate Special Prosecution Force and served from 1973 to 1975.

Honors & Awards

  • Recommended in the 2016 edition of The Legal 500 United States for intellectual property: patent litigation: ITC
  • Selected as a 2013-2016 IP Star by Managing IP, a guidebook that identifies leading IP lawyers in the United States 
  • Named a 2013 and 2014 leading practitioner in patent law by IAM Patent 1000: The World's Leading Patent Practitioners 
  • Selected by his peers as a leading attorney in Washington DC in the 2013, 2014, 2015 and 2016 editions of Super Lawyers
  • Selected as one of Lawdragon Magazine's "500 Leading Lawyers in America" in 2013

Publications & News


June 22, 2016

The Legal 500 United States 2016 Recognizes 111 WilmerHale Lawyers Across 30 Practice Areas

The guide's rankings are based on a series of criteria, including client feedback, interviews with private practice lawyers, and its own research.

May 17, 2016

WilmerHale Attorneys and Practices Recognized in 2016 edition of IP Stars Handbook

The fourth edition of the IP Stars Handbook—a Managing IP guide that identifies the leading IP firms and lawyers in the United States—has been released and it prominently ranks WilmerHale and 19 of its partners.

July 29, 2015

Mueller and Tallon Earn Victory for McAfee Against NPE

Partners Joseph Mueller and Nina Tallon achieved a significant trial victory for McAfee, Inc.—subsidiary of longtime client Intel Corporation—in a patent infringement case brought by non-practicing entity TVIIM, LLC.

July 6, 2015

Managing IP Recognizes WilmerHale, Attorneys in 2015 IP Stars Handbook

Managing Intellectual Property has released the third annual edition of its IP Stars Handbook—a guide that identifies the leading IP firms and lawyers in the United States—prominently ranking WilmerHale and 18 of its partners.

July 17, 2014

WilmerHale and 16 Partners Rank in Managing IP’s 2014-2015 IP Stars Handbook

Managing IP has released its second annual edition of its IP Stars Handbook—a guide that identifies the leading IP firms and lawyers in the United States—prominently ranking WilmerHale and 16 of its partners.

April 25, 2014

WilmerHale Attorneys Recognized in Annual Washington DC Super Lawyers Listing

The annual edition of the Washington DC Super Lawyers magazine, published by The Washington Post Magazine, released its 2014 listing which includes 37 WilmerHale attorneys.

January 22, 2014

[Way] Back to the Future: Using the Wayback Machine in Patent Litigation

An article by James Quarles and Richard Crudo published in Landslide, Volume 6, Number 3, January/February 2014. © 2014 by the American Bar Association. Reproduced with permission. All rights reserved. This information or any portion thereof may not be copied or disseminated in any form or by any means or stored in an electronic database or retrieval system without the express written consent of the American Bar Association.

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

Thirteen 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 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.

Recent Highlights

  • Successfully tried, and sustained on appeal, a 17-day bench trial resulting in a ruling that six patents were unenforceable as a result of inequitable conduct by the patentee and in an award of $2,740,000 in attorneys’ fees
  • Took over representation of a Swiss manufacturer after trial and prevailed in having a jury verdict of $26,000,000 in infringement damages subject to trebling set aside
  • Successfully invalidated the patent to single stroke entry of information on personal data apparatus
  • Successfully represented on appeal a holder of multiple patents to interactive TV guides in reversing adverse decisions by a district court and the International Trade Commission (ITC)
  • Successfully represented a semiconductor manufacturer as a respondent in successive Section 337 proceedings before the ITC
  • Successfully represented a manufacturer of GPS chips in an action brought by and against a competing GPS chip company, resulting in no violation as a respondent and a finding of a violation based on infringement of 6 patents as a complainant.
  • Participated in the successful representation of a chipmaker in litigation before the International Trade Commission, and district courts in the Central and Southern Districts of California
  • Represents a financial institution in an action defending a business method patent

Professional Activities

Mr. Quarles is a member of the American Law Institute, and the American, District of Columbia, Massachusetts and Boston Bar Associations.


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JD, cum laude, Harvard Law School, 1972

BS, cum laude, Denison University, 1968

Bar Admissions

District of Columbia




United States Supreme Court


The Hon. Frank A. Kaufman, US District Court for the District of Maryland, 1972 - 1973

Government Experience

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