Katherine P. Califa
Katherine P. Califa is a USPTO correspondent of record based in Washington, DISTRICT OF COLUMBIA, listed on 1,764 trademark filings (1,255 currently live). The correspondent has worked across 419 distinct trademark owners — a mid-breadth client roster at roughly 4.2 marks per client. In TTAB matters, Katherine P. Califa is attorney of record on 42 contested oppositions and cancellations, more often as plaintiff (27) than defendant (15). The correspondent is associated with Foley & Lardner LLP.
Explore the Trademark Intelligence Library
Editorial deep dives on prosecution strategy, TTAB, and brand portfolios
What Coca-Cola's "Spricy" Trademark Actually Tells You — and What It Doesn't
Coca-Cola filed to trademark "Spricy." A data look at how the company really files, why most of these names quietly die, and the one detail that says this one might be a real product.
Taylor Swift Didn't Just Get Sued Over "The Life of a Showgirl" — the USPTO Already Refused It
What the public trademark record shows about the reverse-confusion fight — and why the most important fact was sitting in the file months before the lawsuit.
7-Eleven v. Nike: The Trademark Case That Isn't Really About Colors
What the USPTO and TTAB record shows about the Air Max 95 fight — and why the real question is striped trade dress, marketplace context, and Nike's own enforcement history.