Leydig, Voit & Mayer, LTD. Intellectual Property Law

Firm Overview

Singular Focus. Outstanding Results.
Leydig, Voit & Mayer has a singular focus: intellectual property law.  Leydig's singular focus enables the firm's attorneys to provide its clients with outstanding results.

Singular Focus. Global Reach.
When organizations and individuals in the United States and abroad face challenging and unique intellectual property issues, they turn to Leydig for efficient and effective representation. In fact, Leydig, Voit & Mayer has appeared in Fortune magazine as one of “The Go-To Law Firms® of the World’s Leading Companies.”

Leydig works with clients from a wide range of industries including:

  • Pharmaceutical
  • Chemical and chemical engineering
  • Software
  • Computer
  • Electronics
  • Manufacturing and machine design
  • Biotechnology
  • Medical devices
  • Financial services
  • Consumer products

Singular Focus. Unparalleled Performance.
Leydig is committed to providing the highest quality of service in a cost-effective manner. Chambers USA described Leydig, Voit & Mayer as “the quintessential, time-honored patent firm” and as "top-notch and cost-effective."

Leydig has over 70 attorneys and technical advisors, along with 100 staff professionals, including patent agents, law clerks, paralegals and administrative personnel, who work in the firm's four offices in the U.S. and Germany. Our legal teams are led by senior attorneys, whose track records are a testament to their experience, industry understanding, and commitment to providing the highest value of service. To provide the greatest value to clients, our legal teams are streamlined, creative, and focused on results and efficiency.

Our firm has a history of distinguished courtroom performance. Leydig's attorneys have long been known for their effectiveness in both bench and jury trials for patent, trademark and trade secret owners, and those accused of infringement or misappropriation. We have successfully litigated several industry-founding patents, including patents and patentees inducted into the National Inventors Hall of Fame.

At Leydig, Voit & Mayer, the lawyers who handle trials and have courtroom expertise also have the technical expertise needed to prosecute patents and trademarks. The wealth of litigation and technical experience of the firm’s attorneys and staff enables the firm to tailor its services to the unique litigation needs of each client and to deliver the highest quality representation to clients in a cost-effective manner. Companies faced with "bet-the-company litigation" turn to our team of seasoned litigators with confidence.

Today, the ongoing success of Leydig continues to enhance its historical reputation for excellence. It is that dedication to outstanding results that keeps Leydig high on the list of top firms that advise the world’s largest corporations.

Leydig, Voit & Mayer’s professionals are widely recognized as leaders in many other professional listings and directories, including:

  • The Best Lawyers in America®
  • Chambers & Partners
  • Fortune Magazine
  • Intellectual Property Today
  • Leading Lawyers
  • Super Lawyers in Illinois
  • Rising Stars in Illinois
  • "Top Lawyers in Illinois" - Chicago Lawyer
  • The Legal 500 U.S.


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