Why a Trademark Search Is Essential
A trademark search — also called a trademark lookup, trademark clearance search, or trademark availability search — is a critical first step before filing a trademark application. Conducting a thorough search before filing helps you identify existing trademarks that could conflict with your proposed mark, saving you from costly application refusals, rebranding expenses, and potential legal disputes.
The USPTO examines every trademark application for likelihood of confusion with existing registered marks and pending applications. If the examining attorney finds a conflicting mark, your application will be refused. A proper clearance search identifies these potential conflicts before you invest time and money in the registration process.
Types of Trademark Searches
Preliminary Knockout Search
A quick initial search of the USPTO trademark database (the USPTO Trademark Search system) to identify obvious conflicts with existing registrations and pending applications. This search is useful as a first step to eliminate clearly unavailable names before investing in a more comprehensive search.
Comprehensive Clearance Search
A full trademark clearance search goes far beyond the USPTO database. Our attorney search across multiple databases and sources, including the USPTO federal trademark register, all 50 state trademark registers, business entity databases, domain name registrations, social media profiles, and common law sources. This comprehensive approach identifies potential conflicts that a simple federal database search would miss.
International Trademark Search
For businesses with international operations or ambitions, we can conduct trademark searches across international trademark databases including the WIPO Global Brand Database, European Union Intellectual Property Office (EUIPO), and individual country registers.
How to Search for a Trademark: The USPTO the USPTO Trademark Search system Database
The USPTO maintains a public trademark database called the USPTO Trademark Search system that anyone can use to search for existing trademark registrations and pending applications. While the public database is a useful starting point, there are important limitations to understand:
- the USPTO Trademark Search system only contains federal trademark registrations and applications — it does not include state registrations, common law marks, or unregistered marks.
- Searching the USPTO Trademark Search system effectively requires knowledge of proper search techniques, including phonetic equivalents, design search codes, and Boolean operators.
- The likelihood of confusion analysis conducted by the USPTO is complex — two marks do not need to be identical to conflict, and the goods and services do not need to be exactly the same.
For these reasons, we strongly recommend having an experienced trademark attorney conduct your clearance search rather than relying solely on a DIY search of the USPTO database.
What Our Trademark Search Service Includes
- Comprehensive search of the USPTO federal trademark database including live, dead, and pending marks
- State trademark database searches across all 50 states
- Business entity and trade name searches
- Domain name availability research
- Common law and internet use searches
- Detailed written analysis and opinion letter from a licensed trademark attorney
- Clear recommendation on whether to proceed with registration
- Strategy discussion for addressing any identified conflicts
Trademark Name Search: Checking Name Availability
One of the most common trademark searches is a name availability search — checking whether a particular business name, brand name, product name, or company name is available for trademark registration. This type of search is essential before launching a new business, rebranding, or introducing a new product line.
When conducting a trademark name search, our attorney look for existing marks that are identical to or confusingly similar to your proposed name. This includes checking for phonetic equivalents (marks that sound similar), marks with similar meanings (foreign language equivalents), and marks used in connection with related goods or services.
Clearance Search vs. Knockout Search: Two Different Jobs
These terms get used interchangeably and they should not be.
A knockout search is a fast screen for obvious problems — identical or near-identical marks in the same class. It is cheap, it is fast, and its only job is to tell you whether to abandon a candidate name immediately. It cannot tell you a mark is safe.
A clearance search is a full analysis: phonetic equivalents, alternate spellings, translations, design elements, related goods and services, state registers, and common-law use. It ends with an attorney's assessment of registrability risk, not a list of hits.
The order matters. Screen a shortlist of candidate names with knockout searches, then clear the survivor properly before you spend money on branding, packaging, or a domain.
Searching Logos and Design Marks
Word marks are searched by spelling and sound. Design marks are searched by design search codes — a six-digit taxonomy the USPTO uses to classify visual elements. A logo containing a stylized bird is coded for that bird, and the only reliable way to find visually similar marks is to search the applicable codes rather than the words nearby.
This matters for a practical reason: if your brand is a word plus a logo, the two may need separate applications. A composite mark protects the combination as shown. It does not give you the same scope over the words used alone in a different visual treatment. Which to file, and in what order, is a strategy question with real cost implications.
Business and Brand Name Searches Before You Commit
Clearing a brand name is not the same as clearing a company name, and the two get conflated constantly. Forming an LLC gives you a business entity name in one state's registry. It grants no trademark rights, and a state will happily register an entity name that infringes someone else's federal mark.
Before you commit to a name, the sequence that avoids expensive reversals is: shortlist candidates, knockout screen, full clearance on the leading option, then secure the entity name, domain, and social handles. Doing it in the other order is how businesses end up rebranding after they have printed packaging.