BARNES & THORNBURG LLP
BARNES & THORNBURG LLP is a Chicago, ILLINOIS-based trademark practice with 29,747 USPTO filings on file, 15,498 of which are currently live. The firm has represented 7,571 distinct trademark owners — a mid-breadth client roster at roughly 3.9 marks per client. In TTAB practice, the firm has handled 6,154 proceedings, more often as plaintiff (4,323) than defendant (1,852). 220 attorneys have appeared at the firm — 35 focused on prosecution, 101 on TTAB matters, 67 working across both areas.
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Editorial deep dives on prosecution strategy, TTAB, and brand portfolios
The Busiest U.S. Trademark Firms Aren't Who You Think
Set aside the flat-fee filing platforms — the Swyfts and LZ Legals that file in five figures — and look only at actual law firms. You'd expect the leaderboard to read like the AmLaw 200. It doesn't. The…
How to Check If a Business Name Is Already Trademarked (Before You Launch)
Before you buy the domain, design the logo, or file the LLC, spend ten minutes making sure your name isn't already someone else's trademark. Here's exactly how — and the two mistakes that give founders false confidence.
Trademark Filings in April 2026: Applications Hold Above 60,000 as Class 41 Leads
- April held above 60,000 filings: USPTO trademark applications reached 60,974 in April 2026, down 0.6% from March’s 61,352 but up 15.5% from April 2025’s 52,784.