Trademark Search: How to Check if a Name Is Already Trademarked

How to Check if a Name Is Already Trademarked

Before investing in a brand name — building a website, ordering packaging, printing business cards — you need to confirm no one else has prior rights to it. A trademark search is the essential first step in protecting your brand.

Why Trademark Searches Matter

Filing a trademark application without a proper search is like buying a house without a title check. You might discover — months and hundreds of dollars later — that someone else already owns the rights.

Risks of skipping a search:

• Application refusal — The USPTO examiner finds a confusingly similar mark
• Wasted filing fees — $350+ in non-refundable government fees
• Legal liability — Using an infringing name exposes you to lawsuits and damages
• Rebranding costs — Changing your name after launch costs far more than a pre-filing search

Method 1: USPTO TESS (Free)

The Trademark Electronic Search System (TESS) is the USPTO's official trademark database containing all federal registrations and pending applications.

How to Use TESS

1. Basic Word Mark Search — Enter your desired name to find exact matches
2. Structured Search — Use Boolean operators and field codes for refined results
3. Free Form Search — Advanced queries using truncation and wildcards

TESS Search Tips

• Search for phonetic equivalents — "Kool" and "Cool" would conflict
• Use truncation (asterisks) — "TECH*" catches "TECHNO," "TECHTRON," etc.
• Filter by Nice Class — A name can be registered by different owners in different classes
• Check dead marks — "DEAD" status doesn't always mean the name is available

Limitations of TESS

• Only covers federal registrations — misses state trademarks and common-law usage
• Doesn't catch visual or conceptual similarities for logos
• Results require legal interpretation

Method 2: State Trademark Databases

Some businesses register at the state level only. These registrations don't appear in TESS but still confer rights within that state. Most states offer searchable databases through their Secretary of State website.

Method 3: Common-Law Search

Trademark rights arise from use, not just registration. An unregistered mark can still block your application.

Where to Search for Common-Law Marks

• Business name registries — State and county DBA filings
• Domain name registrations — WHOIS databases
• Social media platforms — Business accounts across all major platforms
• Search engines — Google the name plus your industry keywords
• Industry directories — Trade associations, review platforms
• App stores — Apple App Store and Google Play

Method 4: International Databases

For international expansion, check:

• WIPO Global Brand Database — 70+ national and international offices
• EUIPO eSearch plus — EU trademarks
• CIPO Canadian Trademarks Database — Canadian registrations

Method 5: Professional Comprehensive Search

A professional search combines all methods above with expert analysis.

Why Expert Analysis Matters

Finding conflicts is only half the battle. Interpreting results requires understanding of likelihood of confusion factors (DuPont factors), mark strength, industry overlap, and geographic considerations.

Our free trademark check covers federal and common-law databases with a professional risk assessment.

What Your Search Results Mean

• ✅ Clear Results — No conflicts found. Strong indicator to proceed.
• ⚠️ Potential Conflicts — Similar marks exist but in different classes or industries. Risk assessment needed.
• ❌ Direct Conflicts — Highly similar mark exists for related goods/services. Choose a different name.

Common Search Mistakes

1. Only searching exact matches — Also check phonetic variants, misspellings, and translations
2. Ignoring related industries — The USPTO considers "related" goods broadly
3. Trusting a single database — TESS alone misses state marks and common-law usage
4. DIY interpretation — Easy to overestimate or underestimate conflicts without legal training