Pryor Cashman LLP

Intellectual Property

Partner

Dyan Finguerra-DuCharme isn’t just the Co-Chair of Pryor Cashman’s Intellectual Property Group—she’s the go-to powerhouse trusted by AI disruptors, Fortune 100 titans, and industry icons across fashion, entertainment, and tech. As a driving force in the firm’s IP, Fashion, Litigation, and Media + Entertainment Groups, Dyan delivers bold, results-driven counsel that turns complex trademark and copyright disputes into decisive victories.

With 30 years leading the charge in trademark law, Dyan is a standout among America’s top IP attorneys, relied on by global brands and innovators for her relentless advocacy. Her expertise spans trademark, trade dress, false advertising, and copyright cases, making her the strategic partner for brands in cosmetics, luxury goods, e-commerce, financial services, and beyond. She’s earned elite recognition from Chambers, Forbes, Legal 500, World Trademark Review, and many others—solidifying her status as the attorney competitors hope you don’t hire.

High-Octane IP Battles

Dyan’s litigation skills shine in federal and state courts, and she’s a force at the Trademark Trial and Appeal Board (TTAB), where her early wins and knockout dismissals set the gold standard. Her client wins read like a who's who of industry heavyweights: from securing game-changing settlements for Drive Devilbiss Healthcare, TraxNYC, Honda, Richemont, L’Oréal, and world-famous entertainers like Jay-Z, Lady Gaga, Pharrell Williams, and DJ Khaled, to landmark victories for luxury leaders and innovative startups. Whether it’s defending iconic trademarks or shutting down copycats, Dyan consistently delivers exceptional results and headline-worthy outcomes.

Global Trademark Protection

Beyond the courtroom, Dyan orchestrates global trademark strategies and portfolio management for renowned brands ensuring their marks remain dominant around the world. Her approach combines sharp legal acumen with practical business insight, keeping clients’ IP assets protected and primed for growth.

Changing the IP Game

A recognized leader in the IP field, Dyan’s influence extends to the U.S. Supreme Court, where she’s the attorney of record on major amicus briefs for the New York Intellectual Property Law Association. She’s racked up prestigious honors—including recognized by Forbes two years in a row as a Top 200 Lawyer, every year since 2012 by World Trademark Review’s “Leading Trademark Lawyer,” she also earned Managing IP’s U.S. Practitioner of the Year, and Lexology’s Client Choice Award—while clients rave about her transparency, strategic vision, and unwavering commitment to their success.

New York County Lawyers’ Association (NYCLA), Member of Board of Directors, Co-Chair Committee on Committees; Director of the Association, Class of 2026; Co-Chair of Women in the Law Committee New York Intellectual Property Law Association (NYIPLA), Co-Chair of Fashion Law Committee (2023); Member of Board of Directors (2018 - 2020); Secretary, (2019 - 2020); Co-Chair of Trademark Committee (2014-2018) New York City Bar Association (NYCBA), Chair of the Women in IP Subcommittee (2010 - 2015)

Brooklyn Law School (J.D., 1996)

Hamilton College (B.A., 1992)