DLA Piper LLP (US)
DLA Piper LLP (US) is a Chicago, CALIFORNIA-based trademark practice with 22,639 USPTO filings on file, 9,065 of which are currently live. The firm has represented 6,253 distinct trademark owners — a mid-breadth client roster at roughly 3.6 marks per client. In TTAB practice, the firm has handled 5,115 proceedings, more often as plaintiff (3,629) than defendant (1,506). 209 attorneys have appeared at the firm — 36 focused on prosecution, 114 on TTAB matters, 46 working across both areas.
Explore the Trademark Intelligence Library
Editorial deep dives on prosecution strategy, TTAB, and brand portfolios
The Trump–Palm Beach Airport Trademark Story the Register Doesn't Support
A viral licensing angle claimed Trump owns airport-related marks tied to Palm Beach. The live trademark register tells a different story — and teaches a search lesson.
The Crowded BEAST: What 1,142 Trademarks Say About Spalding's Case Against MrBeast
Spalding is suing MrBeast over basketballs branded THE BEAST. But 1,142 live BEAST trademarks share the register — and that crowd may narrow what Spalding actually owns.
Refusals 101, Part 1: What an Office Action Actually Is — and How Examiners Decide
An office action is the examiner's formal letter telling you something's wrong. Most of it is fixable paperwork. The real fights are the substantive refusals — and examiners decide them by citing cases like judges.