BARNES & THORNBURG LLP
BARNES & THORNBURG LLP is a Chicago, ILLINOIS-based trademark practice with 30,403 USPTO filings on file, 15,889 of which are currently live. The firm has represented 7,731 distinct trademark owners — a mid-breadth client roster at roughly 3.9 marks per client. In TTAB practice, the firm has handled 6,292 proceedings, more often as plaintiff (4,428) than defendant (1,885). 238 attorneys have appeared at the firm — 35 focused on prosecution, 101 on TTAB matters, 67 working across both areas.
Explore the Trademark Intelligence Library
Editorial deep dives on prosecution strategy, TTAB, and brand portfolios
The 'Twitter' Land Grab: What a Startup's USPTO Filings Reveal About Reclaiming a Dead Name
A startup filed to seize the TWITTER trademark on the theory that X abandoned it. The USPTO register shows exactly how far that gambit has — and hasn't — gotten.
Amazon Filed a Trademark for DUCKLABS the Same Day It Announced Buying DuckLabs
On August 26, Amazon Technologies filed a trademark application for DUCKLABS — the same day AWS announced it had signed a definitive agreement to acquire DuckLabs, the Amsterdam company behind the
Fighting Back, Part 1: What the Cure-Rate Data Actually Says About Beating a Refusal
We measured every US trademark application filed in January 2022 - 46,443 files. More than half drew a refusal letter, roughly half of the refused still registered, and even a final refusal only nudged the odds.