How to Trademark a Business Name

A lot of founders believe that once they've registered their LLC or corporation name with a Secretary of State, the name is protected. It isn't — not in the trademark sense. Business entity registration and trademark registration are two entirely different systems, and understanding the gap between them is the first step to actually protecting your business name.

Entity name vs. trademark: the key difference

When you form an LLC or corporation, the state checks that your entity name isn't identical to another entity already registered in that state. That's it. It doesn't check trademark databases, it doesn't check other states, and it doesn't stop someone else from using the same or a confusingly similar name as a brand — for a product, a website, or a company in a different state — as long as they're not forming an identically-named entity in your state.

A federal trademark, by contrast, protects the name as a brand identifier used on specific goods or services, nationwide, regardless of how any particular business is legally incorporated. It's the trademark, not the entity filing, that actually stops a competitor from using your name.

Step 1: Clear the name for trademark, not just entity availability

Even if your state let you form the entity, that tells you nothing about trademark conflicts. Before you build a brand around the name, search the federal trademark register for exact matches, close variants, and conflicts in your industry's classes.

Step 2: Decide what you're actually registering

You can trademark your full business name, a shortened brand name you actually market under, or both, if they differ. Many businesses have a formal legal name ("Northwind Data Services LLC") and a market-facing brand name ("Northwind") — it's usually the brand name that matters most to trademark, since that's what customers actually see and could confuse with a competitor.

Step 3: Identify your classes

A business name is trademarked in connection with whatever goods or services the business actually provides — not as an abstract company name. Identify the Nice classes that match your real business activity; this is what determines the actual scope of your protection.

Step 4: File with the USPTO

File through the USPTO's TEAS system, choosing the filing basis that matches your situation (use in commerce if you're already operating under the name, intent to use if you're not live yet). The base government fee is roughly $350 per class under the current schedule — see the official USPTO fee page for current numbers. Full mechanics are covered in our step-by-step trademarking guide.

A common trap: DBAs and "doing business as" filings

Filing a DBA (fictitious business name / trade name registration) with your county or state has the same limitation as entity registration — it establishes that you're operating under that name locally, but it doesn't give you nationwide trademark rights or stop a competitor elsewhere from using a similar name. A DBA can be useful for local compliance and banking, but treat it as administrative housekeeping, not brand protection.

What if someone else already has your business name?

• If they hold a federal trademark registration in a related field and you haven't started using the name commercially, it's usually cheaper to pick a different name now than to fight it later.
• If they're only using the name locally without a federal registration, they may still have common-law rights in their territory — this is where a full clearance search and, often, attorney judgment matters.
• If the conflict is in an unrelated field with no realistic overlap in customers, you may be able to coexist — but this is exactly the kind of call worth getting a second opinion on.

Once you're registered

A trademark registration doesn't defend itself. Watching the register for new, conflicting filings — especially in your classes — is the only way to catch a problem while it's still cheap to oppose. See trademark monitoring, explained.