Mark J. Liss

Overview

Mr. Liss is experienced in trademark, copyright, trade secret and unfair competition counseling and litigation. He has significant experience in complex inter partes proceedings before the Trademark Trial and Appeal Board (TTAB), and has represented numerous clients in federal courts around the U.S.

Mr. Liss represents clients in a wide variety of industries including health care, consumer goods and products, insurance and financial services, industrial and commercial products and online retail sales.  Much of his practice is in litigation and trademark counseling.  He has represented clients in lawsuits throughout the United States and inter-parties Trademark Office proceedings.  He has acted as first chair in numerous trials and Trademark Office contested matters.

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Education

Admissions

• Illinois, 1981

Courts

• U.S. District Court for the Northern District of Illinois (Member, Trial Bar)
• U.S. Court of Appeals for the Federal Circuit
• U.S. Court of Appeals for the Seventh Circuit
• U.S. Court of Appeals for the Ninth Circuit
• U.S. District Court for the Central District of Illinois
• U.S. District Court for the Western District of Michigan
• U.S. District Court for the Eastern District of Michigan
• U.S. District Court for the Eastern District of Wisconsin
• U.S. District Court for the Southern District of Wisconsin

Honors

• Listed in The Best Lawyers in America® in the area of Trademark Law, 2013-2017, 2023-2025
• Named in the Illinois Super Lawyers list, Intellectual Property Litigation, 2012-2024
• Selected as a Top Attorney in Illinois by The American Registry, 2023
• Recognized by Managing IP as an Trademark Star, 2022-2023
• Awarded a Client Choice award for Intellectual Property – Trademarks
• Selected as a 2019 Global Leader by the World Trademark Review 1000
• Recognized as a top Illinois trademark lawyer by the World Trademark Review 1000, 2011-2023
• Recognized as a leading IP practitioner by World IP Review’s WIPR Leaders, 2017-2018, 2022
• Named IP Attorney of the Year 2018 – Illinois by Acquisition International’s Excellence Awards
• Awarded Albert Nelson Marquis Lifetime Achievement Award – Marquis Who’s Who
• Selected by peers as a Leading Lawyer in Intellectual Property Law – Leading Lawyers Network
• Listed among the Top Lawyers in Illinois in Intellectual Property Law – Chicago Lawyer
• AV® Preeminent™ Peer Review Rated (Highest Rating) – Martindale-Hubbell

Professional Affiliations

• Intellectual Property Owners Association (IPO)
• International Trademark Association (INTA)
  • Oral argument judge for INTA Saul Lefkowitz Moot Court Competition (2011)

Articles, Publications & Lectures

• What You Need to Know About Filing an Infringement Lawsuit for a Nontraditional Mark in the U.S. Court of Appeals for the Seventh Circuit, INTA Bulletin: October 1, 2017 Vol. 72, No. 17
• Featured Speaker, United States – Litigation Presentation at 2017 INTA Leadership Conference
• Featured Speaker- INTA Paralegal Forum- Arlington, Virginia, subject: likelihood of confusion in trademark cases
• Various presentations on trademark, trade dress and copyright issues made to clients
• Guest commentator- WBBM Radio addressing current copyright and internet related issues.

Practices

• IP Asset Management and Licensing
• IP Litigation
• Trade Secrets and Unfair Competition
• Trademarks and Copyrights

Insights

• Leydig Attorneys Named The Best Lawyers in America® for 2025
  August 15, 2024
• Leydig Attorneys Named 2024 Illinois Super Lawyers
  February 1, 2024
• Leydig Wins Appeal at Third Circuit involving Trade Dress for Candy Company Haribo
  September 11, 2023
• Leydig Attorneys Named The Best Lawyers in America® for 2024
  August 18, 2023
• Leydig Named Top Firm in World Trademark Review 1000
  March 8, 2023
• Leydig Attorneys Named 2023 Illinois Super Lawyers
  January 26, 2023
• Leydig Wins Summary Judgment for Candy Company Haribo
  November 23, 2022
• Leydig Attorneys Named Best Lawyers by U.S. News
  August 25, 2022
• Leydig Attorneys Named 2022 Illinois Super Lawyers
  January 26, 2022
• Leydig attorneys named Best Lawyers by U.S. News
  August 19, 2021
• Leydig Attorneys Named 2021 Illinois Super Lawyers
  January 26, 2021
• Mark Liss named in AI Global 2020 Leading Advisor Awards
  September 15, 2020
• Leydig attorneys named Best Lawyers by U.S. News
  August 20, 2020
• Leydig ranked in Managing IP Trademark Stars
  May 14, 2020
• Leydig attorneys named in Best Lawyers
  February 28, 2020
• Leydig Attorneys Named 2020 Illinois Super Lawyers
  January 26, 2020
• Leydig Attorneys Listed in 2019 Edition of The Best Lawyers in America®
  August 17, 2019
• Mark Liss Selected as a 2019 Global Leader by the World Trademark Review
  July 8, 2019
• Mark Liss Named Recipient of 2019 Client Choice Award
  February 15, 2019
• Leydig Ranked as Top Trademark Law Firm by the World Trademark Review
  February 1, 2019
• Leydig Attorneys Named 2019 Illinois Super Lawyers
  January 25, 2019
• Creating Valuable Client Outcomes in Trademark Law
  September 5, 2018
• Leydig Attorneys Listed in 2018 Edition of The Best Lawyers in America®
  August 17, 2018
• Mark Liss Named IP Attorney of the Year 2018 in Illinois
  May 5, 2018
• Leydig Attorneys Named 2018 Illinois Super Lawyers
  January 25, 2018
• Leydig Attorneys Named 2017 Illinois Super Lawyers
  January 18, 2017
• Leydig Attorneys Named in Illinois Super Lawyers and Rising Stars 2016 Lists
  December 4, 2015
• Leydig Attorneys Named in Illinois Super Lawyers and Rising Stars 2015 Lists
  January 16, 2015