JM

John M. Desmarais

New, NY

Practicing ip in New York since 1989.

37+
Years practicing
3
Bar admissions

Practices in

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Quick answer

John M. Desmarais is an attorney based in New York, NEW YORK. The practice focuses on IP and Patent. John has over 37 years of legal experience.

Based in
New York, NEW YORK
Experience
over 37 years
Known for
IP · Patent
  • Handles IP and Patent matters from New York, NEW YORK.
  • Over 37 years of practice as a licensed attorney.
  • Recognized with Lawyer of the Year — Litigation - Intellectual Property (New York City) (2026).

About John M. Desmarais: John M. Desmarais is an attorney based in New York, NEW YORK. The practice focuses on IP and Patent. John has over 37 years of legal experience.

Areas of practice

Practice focus

John M. Desmarais represents clients in New York across the following areas of law. Each area links to other verified attorneys with the same focus.

Biography

About John M. Desmarais

John M. Desmarais is the founding partner of Desmarais LLP. In 1988, after graduating from NYU Law School, Mr. Desmarais started his career at Fish & Neave. Then, after practicing in the area of intellectual property litigation and counseling for several years, he left private practice to serve as an Assistant United States Attorney in the Southern District of New York, where for three years (1992-1995) he tried criminal jury trials for the federal government. After leaving the government, Mr. Desmarais returned to the practice of intellectual property litigation at Fish & Neave, and later joined the New York office of Kirkland & Ellis. From 1997-2009, he was a partner at Kirkland and served as a member of the Firm Management Committee from 2004-2009. After 13 years at Kirkland, he left to found Desmarais LLP, an IP trial boutique. Mr. Desmarais is a member of the bars of California, New York and Washington, D.C., the U.S. Supreme Court, the Federal Circuit Court of Appeals, and various other federal district courts and courts of appeal. Mr. Desmarais is also registered to practice before the United States Patent and Trademark Office. Mr. Desmarais obtained a degree in Chemical Engineering from Manhattan College and a law degree from New York University.

Credentials

Education

  • New York University

    J.D. · 1988

  • Manhattan College

    — · 1985

Jurisdictions

Bar admissions

  • California

    2018 · ACTIVE

  • District of Columbia

    1989 · ACTIVE

  • New York

    1989 · ACTIVE

Recognition

Awards & honors

  • Lawyer of the Year — Litigation - Intellectual Property (New York City)

    2026

  • Lawyer of the Year — Litigation - Patent (New York City)

    2025

  • Lawyer of the Year — Patent Law (New York City)

    2025

  • Lawyer of the Year — Litigation - Intellectual Property (New York City)

    2024

  • Lawyer of the Year — Litigation - Intellectual Property (New York City)

    2021

  • Lawyer of the Year — Litigation - Patent (New York City)

    2017

  • Lawyer of the Year — Litigation - Patent (New York City)

    2012

  • Best Lawyers in America — Litigation - Intellectual Property

    2026

  • Best Lawyers in America — Litigation - Patent

    2026

  • Best Lawyers in America — Patent Law

    2026

  • Best Lawyers in America — Special Focus:

    2026

  • Best Lawyers in America — Antitrust

    2026

  • Best Lawyers in America — Litigation

    2026

  • Best Lawyers in America — Patent

    2026

  • Best Lawyers in America — Trade Secrets

    2026

  • Best Lawyers in America — Trademark

    2026

Locations

Office locations

Main office

230 Park Avenue 26th Floor

New York, New York 10169

Open in Google Maps

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Client reviews

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Frequently asked

Common questions

  • What areas of law does John M. Desmarais practice?

    John M. Desmarais focuses on IP and Patent.

  • Where is John M. Desmarais located?

    John M. Desmarais primarily serves clients in New York, with an office at 230 Park Avenue 26th Floor.

  • How experienced is John M. Desmarais?

    John M. Desmarais has 37 years of legal practice, having been licensed since 1989.

  • Is John M. Desmarais a verified attorney?

    John M. Desmarais's profile is listed but has not yet been claimed by the attorney. Verification status is pending.

  • How can I schedule a consultation with John M. Desmarais?

    You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 212-351-3400.