Trademark Basics: Protecting Your Brand

A trademark is any word, phrase, symbol, or design that identifies and distinguishes the source of goods or services. Its core function is preventing customer confusion — stopping someone else from using a name or logo similar enough to yours that customers might think they're getting your product when they're not.

Common law rights vs. federal registration

Simply using a mark in commerce creates some "common law" trademark rights in the geographic area where it's used, without any registration at all. Federal registration with the U.S. Patent and Trademark Office goes much further: nationwide priority, a legal presumption of ownership, the ability to use the ® symbol, and access to federal court and stronger remedies if someone infringes.

What makes a mark strong or weak

Trademark strength runs on a spectrum. Fanciful or arbitrary marks (invented words, or real words used in an unrelated context) are the strongest and easiest to protect. Suggestive marks are moderately strong. Descriptive marks (ones that just describe the product) are weak and generally can't be registered unless they've acquired distinctiveness through extensive use. Generic terms — the actual common name for a product — can never function as a trademark at all.

Maintaining rights over time

Trademark rights aren't permanent by default — they last as long as the mark is actively used and properly maintained, including periodic filings with the USPTO to keep a federal registration active. A mark can also be weakened or lost if it becomes generic through common use (as happened historically with terms like "escalator"), which is part of why companies are often strict about how their brand name is used publicly.