Desmarais LLP

At the cutting edge of intellectual property law.

Desmarais LLP lawyers have argued the appeal of numerous cases that have shaped the substantive direction and development of intellectual property law.
Practices
Battle-tested.

Desmarais LLP boasts an unusually deep bench of lawyers with actual, real-world jury trial experience, having successfully tried cases before juries and judges throughout the country, as well as the International Trade Commission.
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Always prepared to go the distance.

Desmarais LLP focuses on the litigation of complex, often technology-driven disputes.

Our lawyers have successfully tried some of the most important intellectual property disputes in recent times, for some of the largest companies in the world.
ABOUT
Guarding your most critical business assets.

Our clients include Fortune 100 companies who rely on us to protect their most important intellectual property assets, as well as smaller entities and individuals who seek to enforce the exclusive rights in their inventions or technology.
About
Working efficiently to protect your interests.

Our flexible and innovative approach to fee arrangements sets us apart from other top-tier firms that handle the same types of large, complex litigations. We have abandoned the traditional but inefficient billable-hour approach in favor of fee arrangements more nearly tailored to our clients' interests—freeing us to work efficiently to protect your interests.
Practices
Focused on results.

Desmarais LLP and its lawyers consistently have been recognized in industry publications as leaders in its areas of practice. Whether for jury trial, bench trial, or appellate argument, in whatever jurisdiction, Desmarais LLP's focused approach will bring a lean team of experienced and creative professionals dedicated to achieving your business goals.
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OFFICES

New York - P: (212) 351-3400
San Francisco - P: (415) 573-1900
Washington, D.C. - P: (202) 451-4900

Desmarais LLP Again Ranked in Managing IP's 2026 IP Stars

Managing IP recognized Desmarais LLP in its 2026 IP Stars rankings, once again highlighting the Firm among the leading patent disputes practices in the United States.

RECENT TRIALS

Desmarais LLP has built one of the most robust and successful IP trial practice groups nationwide.

Recently Desmarais LLP has tried multiple cases, each with a different team of lawyers.

FEATURED PARTNER

Joze Welsh

Ms. Welsh’s practice focuses on intellectual property and technology-related litigation, including patent and antitrust litigation. Her experience includes preparing pleadings and contentions, drafting briefs, taking...

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