To check if a name is trademarked, start with the U.S. Patent and Trademark Office’s free database at tmsearch.uspto.gov, but treat that as one layer of a broader check. A name that doesn’t appear in federal records can still be protected through a state registration, common law rights built up through actual commercial use, or an international filing.1United States Patent and Trademark Office. Search Our Trademark Database Missing any of those layers can leave you exposed to infringement claims and forced rebranding under the Lanham Act.2Office of the Law Revision Counsel. 15 USC 1117 – Recovery for Violation of Rights
Build Your Search Terms First
Running one exact-match search and calling it done is where most people go wrong. The USPTO evaluates whether marks are confusingly similar based on appearance, sound, and overall commercial impression, and there is no single “correct” pronunciation of any mark. A name that sounds like yours when spoken aloud can block your application even if it’s spelled nothing like yours.
Before you touch a database, write down every phonetic variation, common misspelling, and abbreviation of the name you’re considering. If your brand is “Klear View,” you also need to search “Clear View,” “ClearVu,” “Kleer Vue,” and anything else a customer might confuse with it.
Then list synonyms and translations that carry the same meaning. A name like “Sunrise Wellness” should trigger searches for “Dawn Health,” “Morning Vitality,” and similar combinations. This catches marks that look and sound nothing like yours but occupy the same conceptual space, which matters because the USPTO weighs meaning alongside sight and sound.
You also need to know which goods-and-services class applies to your business. The international classification system divides commercial activity into 45 classes: clothing falls under Class 25, restaurant services under Class 43, and so on.3eCFR. 37 CFR 6.1 – International Schedule of Classes of Goods and Services The USPTO’s Trademark ID Manual lets you search descriptions the agency accepts for filing so you can identify the right class before you search.4United States Patent and Trademark Office. Searching the Trademark ID Manual Get the class wrong and you may miss a direct competitor using the exact same name, or waste time worrying about a mark in a completely unrelated industry.
Search the USPTO Federal Database
The USPTO replaced its legacy tool (TESS) with a redesigned system at tmsearch.uspto.gov.1United States Patent and Trademark Office. Search Our Trademark Database You can search by word mark, owner name, serial number, or design code. Start with a word mark search using the exact name, then run every variation from your prep list.
Pay close attention to the status field on each result. A “Live” status means the application is pending or the registration is active and enforceable. A “Dead” status means the application was abandoned or the registration was cancelled, but don’t dismiss dead marks automatically. The former owner may still be using the name in commerce and holding common law rights in their geographic area, and they could challenge your use even without an active federal registration.
For deeper detail on any result, the Trademark Status and Document Retrieval (TSDR) system pulls up the full file history, including the original application, examiner office actions, and maintenance deadlines.5United States Patent and Trademark Office. Checking the Status of a Trademark Application or Registration
Searching Logos and Design Marks
If your brand includes a logo, icon, or any visual element, a word search alone won’t catch conflicts. The USPTO uses a numeric design code system that organizes visual elements into categories, divisions, and sections. A sun falls under celestial bodies; a stylized animal has its own category. The Design Search Code Manual offers both a browsable hierarchy and an alphabetical index of visual elements with their codes.6Trademark Design Search Code Manual. Home You identify the codes that describe your logo’s elements and search using those codes. It’s the only reliable way to find visually similar trademarks in the federal database.
Check State Trademark Registries
The federal database only contains marks filed with the USPTO. Businesses that operate within a single state often register through the Secretary of State’s office instead, and those filings never appear in a federal search. State registrations create enforceable rights within that state’s borders, and a prior state filing can limit your ability to operate in that territory even if you eventually secure a federal mark.
Checking these records means visiting individual state websites and locating their trademark search portals. There’s no centralized national database of state registrations. If you plan to operate in several states, you’ll need to check each one separately.
Check for Common Law and Unregistered Uses
Trademark rights in the United States come from actual commercial use, not from registration. Anyone using a distinctive name in connection with goods or services builds enforceable common law rights in their geographic market, even without filing a single form.7Office of the Law Revision Counsel. 15 USC 1125 – False Designations of Origin and False Descriptions Forbidden These unregistered marks are the hardest to find and the easiest to overlook, which makes them the most dangerous gap in a search.
Cast a wide net. Business directories, online marketplaces, social media platforms, and domain registrations all matter. A company that’s been selling under your proposed name on Etsy for three years has common law rights regardless of whether they’ve filed anything with the USPTO. Social media handles deserve particular attention: a business operating under a branded handle with an established customer base can claim trademark rights tied to that use, and courts have confirmed that digital spaces are not exempt from traditional trademark protections.
A Business Name Filing Is Not a Trademark Check
A common and costly misconception is that registering a business name (a trade name, DBA, or fictitious name) with your state gives you trademark rights. It does not. A trade name is the legal name under which you conduct business, registered with your state. A trademark identifies the source of your goods or services and distinguishes them from competitors.8United States Patent and Trademark Office. How Trademarks and Trade Names Differ Finding that a business name is “available” through your state’s corporate filing office tells you nothing about whether someone already holds trademark rights to that name.
Search International Records
If your business has any online presence, your brand is visible globally, and trademark owners in other countries can create problems. The World Intellectual Property Organization (WIPO) maintains the Global Brand Database, which contains more than 50 million records from over 70 national and international databases, including marks registered through the Madrid System.9World Intellectual Property Organization (WIPO). Madrid System: Search Before Filing an International Trademark Searching it is free and catches conflicts you’d never find through the USPTO alone. Even if you have no immediate plans to sell abroad, knowing whether a large international brand holds rights to your proposed name helps you avoid a fight you can’t win.
Reading a Hit: What “Confusingly Similar” Actually Means
Finding a mark that resembles yours doesn’t automatically mean you’re blocked. The legal question is whether consumers are likely to confuse the two marks, and the USPTO evaluates that using a set of factors from the In re E. I. du Pont de Nemours case. The two most important are the similarity of the marks themselves (how they look, sound, and feel to a buyer) and how closely related the goods or services are.
Those two factors work on a sliding scale: the more similar the marks, the less related the goods need to be for the USPTO to find a conflict, and vice versa. Other factors include the sophistication of buyers in your market, how famous the existing mark is, whether any actual confusion has occurred, and the overlap in sales channels. A thirteenth catch-all covers other relevant evidence, such as whether the field is already crowded with similar marks. Not every factor applies in every case.
This is why a name that looks safe on the surface can still be rejected, and why a name that seems risky on first pass might be defensible. The search gives you raw data. The likelihood-of-confusion analysis tells you what that data means.
When to Bring in an Attorney
A DIY search through the USPTO database is a solid starting point, but it has real limits. The federal database doesn’t include state registrations, common law marks, or pending applications that haven’t yet been published. A comprehensive clearance search covers all of those layers, including professional databases that aggregate state filings and business records that aren’t easily searchable online.1United States Patent and Trademark Office. Search Our Trademark Database
The bigger value of hiring a trademark attorney isn’t the search itself but the legal opinion that follows. An attorney evaluates your results against the likelihood-of-confusion factors, weighs the strength of potentially conflicting marks, and gives you a realistic read on whether your name can survive examination. If an examiner later finds a conflicting mark you didn’t catch, you lose both the filing fee and months of prosecution time. A professional search before filing is the cheapest insurance against that outcome.
If You Find a Conflict
Turning up a potentially conflicting mark isn’t necessarily the end. Your options depend on how close the conflict is and how much risk you’re willing to accept.
- Modify the name. A small change in wording or a shift in emphasis sometimes creates enough distance. “Summit” might be taken in your class while “Summit Trail” clears.
- Narrow your goods or services. If the conflicting mark covers a broad range, you may be able to register in a specific niche within the same class where overlap is minimal.
- Negotiate a coexistence agreement. If both parties operate in different markets or geographic areas, a written agreement letting both marks exist can carry significant weight with the USPTO during examination.
- Get an attorney’s risk assessment. A trademark attorney can analyze the specific conflict against the confusion factors and tell you whether the risk is genuinely high or only surface-level.
The option that almost never works is ignoring the conflict and hoping nobody notices. Federal registration constitutes constructive notice of a claim to a mark, and that cuts both ways: an existing registrant’s rights are on notice to you as well.10Office of the Law Revision Counsel. 15 USC 1057 – Certificates of Registration If a conflict surfaces after you’ve launched, the costs escalate fast: new signage, new packaging, new domain, new marketing materials, and potential liability for the other owner’s lost profits and your own profits earned under the infringing name.2Office of the Law Revision Counsel. 15 USC 1117 – Recovery for Violation of Rights The clearance search is the least expensive step in the entire trademark process, and it saves you the most money.