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Practice Areas
E-Commerce and Marketplace IP
Freedom-to-Operate, Non-Infringement, and Invalidity Opinions
IP Asset Management and Licensing
IP Due Diligence and Transactions
IP Litigation
Patent Preparation and Prosecution
Post-Grant Proceedings Before the USPTO
Trade Secrets and Unfair Competition
Trademarks and Copyrights
Technologies
Biotechnology
Chemical Technologies
Cybersecurity
Electrical, Computer, and Software Technologies
Internet and Telecommunications
Mechanical, Electromechanical, and Optical Technologies
Pharmaceuticals and Biosimilars
Professionals
News
Case Studies
IP Asset Management and Licensing
Trust in Leydig’s comprehensive services and capabilities fuels client’s successes
IP Litigation
Leydig obtains positive outcome in software patent litigation
Pharmaceuticals and Biosimilars
Leydig spares client from drawn-out litigation and speeds release of multibillion-dollar biosimilars
Trademarks and Copyrights
Leydig’s meticulous due dilligence and strategic advocacy preserve crucial rebrand for multibillion-dollar client
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IP Law Fellowship
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News
Leydig Ranked as Top Trademark Law Firm by the World Trademark Review
February 1, 2019
Stephanie Winner Joins Leydig
January 28, 2019
Leydig Attorneys Named 2019 Illinois Super Lawyers Rising Stars
January 26, 2019
Leydig Attorneys Named Illinois Super Lawyers Rising Stars 2019
January 25, 2019
Leydig Attorneys Named 2019 Illinois Super Lawyers
January 25, 2019
J. Brian Loker Joins Leydig
January 24, 2019
Leydig Receives National Tier 1 Rankings in U.S. News and World Report - Best Law Firms 2019
November 23, 2018
Leydig Attorneys Named Life Science Stars by LMG Life Sciences
November 15, 2018
Leydig Recommended by LMG Life Sciences
November 14, 2018
Leydig Receives National Tier 1 Rankings in U.S. News and World Report - Best Law Firms
November 1, 2018
John Augustyn to present a CLE Webinar on Negotiating Patent and Technology License Agreements
September 28, 2018
Creating Valuable Client Outcomes in Trademark Law
September 5, 2018
Leydig Received Innovative Lawyers Award
September 4, 2018
Leydig Selected As Top IP Law Firm in Managing Intellectual Property™
August 28, 2018
Leydig Ranked As Leading IP Law Firm by Chambers USA
August 28, 2018
Leydig Recognized by the Legal 500
August 28, 2018
Leydig Honored in Vault’s List of Top Midsize Law Firms
August 28, 2018
Leydig Attorneys Listed in 2018 Edition of The Best Lawyers in America®
August 17, 2018
Leydig Recognized Among Top IP Law Firms in Managing Intellectual Property™ 2018 IP Stars
July 3, 2018
Leading IP Law Firm Leydig, Voit & Mayer Opens Boulder, Colorado Office
May 7, 2018
Leydig Named Best International IP Law Firm by Acquisition International
May 5, 2018
Mark Liss Named IP Attorney of the Year 2018 in Illinois
May 5, 2018
Leydig Attorneys Named as Leading IP Practitioners by the 2018 World IP Review
March 1, 2018
Leydig Named Pharmaceutical Law Firm of the Year
February 14, 2018
Leydig Listed as Top Trademark Law Firm by the World Trademark Review
February 5, 2018
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