Use the USPTO's free TESS database at tmsearch.uspto.gov. Search your proposed mark as a Basic Word Mark Search, filter by the relevant international class, and review live registrations for conflicts. The search takes 15 to 30 minutes and catches the most common trademark conflicts before filing.
Run a Basic Word Mark Search in USPTO TESS today for every candidate name before committing to any further naming work.
A 15-minute TESS search eliminates the clearest conflicts and identifies the specific classes where risk exists.
Open tmsearch.uspto.gov, search your candidate name as a standard character mark, and filter by your product or service class.
The USPTO trademark database is the official public record of federal trademark registrations and applications, maintained by the United States Patent and Trademark Office. The public-facing tool is called TESS (Trademark Electronic Search System) and is available for free at tmsearch.uspto.gov.
The database is governed by the Lanham Act at 15 U.S.C. §1051 and following, which establishes the federal trademark system and requires the USPTO to maintain public records of filings.[1] All public records are accessible without account creation, though some advanced features require USPTO.gov account access.
A Basic Word Mark Search is the most common TESS query for naming research. The search matches against the exact text of the mark, without design or phonetic variants. It takes 2 to 5 minutes per candidate and handles most simple clearance needs.
The basic search treats your query as a literal string match against the full mark text. It does not automatically catch marks with your term embedded in longer phrases or marks with different spellings. For those variations, use the Word and/or Design Mark Search or the Free Form Search with Boolean operators. For most simple candidates, the Basic Word Mark Search handles the first-pass clearance.
Each TESS search result links to a detailed record with multiple data fields. Collecting the right information from each relevant result produces a clearance picture that supports the filing decision.
| Field | Why it matters |
|---|---|
| Mark text or design | Exact form of the existing mark |
| Serial number | Unique identifier for the application |
| Status | Live, pending, abandoned, or dead |
| International class(es) | Which USPTO class the mark covers |
| Goods/services description | Specific products or services the mark covers |
| First use date | When commercial use began |
| Filing date | When the application was filed (priority date) |
| Registration date | When registration issued (if applicable) |
| Owner name and address | Who owns the mark |
A spreadsheet tracking these fields across all relevant search results helps visualize conflicts. Live registrations in your class with similar marks are the primary concern. Dead registrations can be ignored unless the dead mark was only recently cancelled. Pending applications with earlier priority dates than your planned filing create potential conflicts if they mature to registration.
Interpreting search results requires evaluating each match against the USPTO’s likelihood-of-confusion standard under 15 U.S.C. §1052(d). A mark is likely clear if no live registrations or pending applications cover similar marks in the same class or commercially related classes.
The analysis becomes more complex when similarity is partial (one word matches in a longer mark, phonetic similarity with different spelling, conceptual similarity). For borderline cases, a trademark attorney’s opinion adds valuable interpretive expertise. For clear cases — either obvious conflict or obvious clear — the DIY interpretation handles most situations.
USPTO searches do not catch every trademark-related risk. The database contains federal registrations and applications but excludes several other categories of potential conflict. Understanding the limitations helps scope the overall clearance process correctly.
The limitations mean a clean TESS search is necessary but not sufficient for complete clearance. For comprehensive pre-filing due diligence, layer on common-law searches via Google, state database checks for states where you operate, and a professional clearance search for higher-stakes marks.[3]
Founders discovering TESS for the first time sometimes treat it as the complete trademark search. The database is powerful and free, and a clean TESS result feels like a green light. But TESS covers only federal registrations and applications. Common-law marks, state registrations, and related-class conflicts require additional layers to complete the picture.
The right mental model is that TESS is the first filter in a multi-stage clearance process. A conflict found in TESS is a hard stop — no further clearance is needed because the mark is already blocked. A clean TESS result moves the candidate to the next stage: common-law search for unregistered uses, state database checks, and optional professional clearance for high-stakes filings.
This is where Responsible Asset-Building uses TESS as the foundation of clearance rather than the entirety. The free federal search handles the easiest and most common conflicts. The additional layers catch the harder-to-find conflicts that can still derail a trademark filing or create later enforcement exposure. Running the full clearance stack prevents the surprise — “I searched TESS and it was clear, but now I’m getting a cease-and-desist from a state-registered user” — that follows incomplete due diligence.
The Structured Middle Path treats TESS as one tool in the clearance toolkit. An educated consumer runs TESS first, runs the supplementary checks next, and engages professional help for complex or high-value marks. Each layer has its purpose, and skipping any of them leaves gaps in the protection.
Yes. Access to TESS at tmsearch.uspto.gov is free and does not require an account for basic searches. The USPTO provides public access to federal trademark records as part of its statutory mandate. Advanced features and filing services may require a USPTO.gov account, but search is freely available to anyone with an internet connection.
TESS results are as accurate as the underlying USPTO records they reflect. The database is authoritative for federal registrations and applications. However, TESS does not automatically catch phonetic variants, related-class similarities, or common-law uses. A clean TESS search means no obvious federal conflict; it does not guarantee the mark will register without refusal.
No. TESS is a search tool, not a legal advisor. Interpreting search results, evaluating likelihood of confusion, and assessing registrability all require legal judgment that TESS itself does not provide. For high-stakes marks, supplement TESS searches with a trademark attorney's clearance opinion letter, typically costing $500 to $2,000.
TESS shows both. Each search result includes a status field (LIVE for active, DEAD for abandoned or cancelled). Live status includes both registered marks and pending applications. Pending applications carry priority from their filing date, so a pending application with an earlier priority date than your planned filing can block your application even before it registers.
Out-of-industry registrations generally do not block your registration in your own industry, because likelihood of confusion analysis requires commercial relatedness. A 'Polaris' registration for snowmobiles, for example, does not necessarily block a 'Polaris' registration for consulting services. The analysis still matters because it determines whether the USPTO examining attorney will refuse your application, but the outcome is usually favorable for genuinely unrelated industries.
TESS is updated in near real-time for filing status changes. New applications appear within a few business days of filing. Status changes (publication, registration, abandonment) typically update within a day of the USPTO's internal record change. The database reflects authoritative current status, not a periodic snapshot.
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