How to check if a name is trademarked

There are really two levels to checking whether a name is trademarked, and most people only do the first:

1. Search the official register. The USPTO's public trademark search system lets anyone look up U.S. federal marks for free. It's authoritative, and it's where a formal record lives. Its limitation: it's built around exact and near-exact text. That's great for "is this precise string registered," weak at "what else is close enough to matter."

2. Screen for similarity. The conflicts that actually cause problems are rarely identical strings. They're names that sound alike, look alike, or mean the same thing. Finding those means matching by sound and meaning, not just spelling, which a plain text search can't do.

• Start with the exact name. Search the USPTO system for your name as spelled. A direct hit in a related class is an immediate red flag.

• Check the status. For any match, note whether it's live or dead: a dead mark usually can't block you, a live one can.

• Then go past the spelling. This is the step people skip. Test for sound-alikes and meaning-alikes (respellings, homophones, translations, synonyms), because those are the real collisions. A similarity tool that scores your name against the whole live register does this in seconds and shows you the matches with the evidence.

It's tempting to ask an AI assistant "is this name trademarked?" But a general chatbot has no access to the live register and will confidently invent registrations that don't exist or miss ones that do. Checking a name is exactly the kind of task that needs the actual current data, not a model's memory. Treat any screen (including this one) as a preliminary signal, and take a serious name to a professional clearance search.