PATTISHALL MCAULIFFE, ET AL
PATTISHALL MCAULIFFE, ET AL has 11,859 USPTO trademark filings on file, 6,540 of which are currently live. The firm has represented 2,421 distinct trademark owners — a mid-breadth client roster at roughly 4.9 marks per client. In TTAB practice, the firm has handled 4,395 proceedings, more often as plaintiff (3,520) than defendant (892). 203 attorneys have appeared at the firm — 3 focused on prosecution, 129 on TTAB matters, 28 working across both areas.
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Editorial deep dives on prosecution strategy, TTAB, and brand portfolios
Class 42 Is Up 20% Year Over Year While the Rest of the Register Flatlines
Software and technology-services filings in Class 42 hit 6,632 in September 2026, up 20.2% from a year earlier and the biggest year-over-year gain of any top-15 class. Total applications slipped 0.7% to 55,684.
TTAB in Q3 2026: Contested Filings Rise 3.9% While Defaults End 56% of Oppositions
Oppositions and cancellations filed at the TTAB rose 3.9% to 3,044 in Q3 2026. Of the 2,937 that ended during the quarter, 1,636 (55.7%) ended in default because the respondent never answered.
How the Thirteen du Pont Factors Actually Get Weighed
The thirteen factors were never a scoring rubric: two keystones decide most cases, any single factor can end one, and the rest move only when someone pays to put evidence in. The finale of our thirteen-part series, with the scoreboard of every case it covered.