Field notes on trademarks.

We analyzed 200,000+ seller posts plus federal counterfeit lawsuits and USPTO oppositions to rank the brands whose IP complaints take down the most Etsy and print-on-demand shops — and exactly what gets flagged.

A POD seller's step-by-step playbook for trademark cease and desist letters. What it legally means, your five response options, the trademark-vs-DMCA trap, and how to avoid the mistakes that turn a letter into a lawsuit.

FIFA owns 'World Cup' as a U.S. trademark — plus mascots, slogans, and country-specific marks. With the 2026 tournament in the US/Canada/Mexico, FIFA's enforcement reaches POD sellers in ways most don't expect. Here's the minefield map.

Class 25 is the most contested trademark class for POD sellers. Here's what it covers, what it doesn't, which brands enforce most aggressively, and how to check your t-shirt design before it gets you struck.

The legal test that decides whether your trademark survives a USPTO refusal — and whether you get sued for infringement. The 13 DuPont factors explained in plain English, plus why USPTO approval is not a green light in court.

Five proven methods to check if a brand name is already trademarked — USPTO Trademark Search, phonetic similarity, common law databases, and more. Avoid Office Actions before you file.

Three viral brands defended billion-dollar valuations with trademark strategy. The pattern: file early, file layered, enforce visibly — even pre-revenue. Here's how indie founders can copy the playbook.

The 12 checks every designer and founder runs through before launching a brand — trademark, domain, USPTO availability, social handles, and distinctiveness audit. About 90 minutes total.