Ladas & Parry LLP
Ladas & Parry LLP is a CHICAGO, NEW YORK-based trademark practice with 22,271 USPTO filings on file, 8,943 of which are currently live. The firm has represented 8,870 distinct trademark owners — a broad client roster of mostly one-off filings at roughly 2.5 marks per client. In TTAB practice, the firm has handled 5,027 proceedings, more often as plaintiff (3,248) than defendant (1,803). 180 attorneys have appeared at the firm — 17 focused on prosecution, 104 on TTAB matters, 33 working across both areas.
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Explore the Trademark Intelligence Library
Editorial deep dives on prosecution strategy, TTAB, and brand portfolios
Four Ways to Lose a Trademark Fight You Thought You'd Cleared
xAI, a champagne widow, an Italian wine label, and a matcha bar — what the four prongs of du Pont Factor 1 (appearance, sound, meaning, commercial impression) look like in real refusals and TTAB cases.
Trump, Palm Beach, and the Airport Naming Story the Trademark Register Doesn't Support
Forbes floated whether renaming Palm Beach International Airport could enrich Donald Trump through licensing. We checked the trademark register. The marks that would make that possible don't exist.
Why the USPTO Told MLB It Can't Own 'Play Ball' — And What the Record Teaches Founders
MLB waited four years for the USPTO to reject PLAY BALL for clothing. The trademark register explains why — and hands founders a filing lesson worth real money.