Choosing a name for an online store feels like a creative decision. It is also a legal one. A name that is already used by someone else for similar products can force you to rebrand after you have paid for packaging, a domain, ads and a customer base. A basic search before you commit costs little compared with that. This guide walks through what a pre-naming trademark search involves, where to look, how to judge whether a name is too close to an existing one, and when to bring in a professional.
What a trademark is, in plain terms
A trademark is a word, name, logo or other sign that identifies the source of goods or services. For an online store, the brand name, the product line names and the logo can all function as trademarks. In the United States, rights can arise from using a mark in commerce, and a mark can also be registered with the United States Patent and Trademark Office (USPTO). Registration and use are different things, and a search should look at both.
Why search before you register or launch
The USPTO advises, before you apply to register a trademark, to conduct a clearance search to see whether someone else has already registered that trademark or a similar one, and says doing so can help you avoid costly and time-consuming issues with your application. It also explains that when the application is examined, the examining attorney will only determine whether there are conflicting trademarks in the USPTO's federal database; searching state trademark databases and the internet is your own responsibility. That detail matters for online sellers: a name can be clear in the federal database and still collide with a business that uses it without a registration.
The USPTO describes likelihood of confusion with an existing mark as the most common reason for refusing registration. Finding that problem before you spend money on a brand is far cheaper than finding it afterwards.
What "confusingly similar" means
Searching only for your exact name is not enough. According to the USPTO, a likelihood of confusion refusal has two parts: the marks are confusingly similar, and the goods or services are related. Both must be present. The USPTO also notes that trademarks do not have to be identical to be confusingly similar. They can be similar in:
- Sound. Names pronounced alike can conflict even if spelled differently, so check variant spellings.
- Appearance. Marks that look alike can conflict, including when one is in plain text and the other is stylised.
- Meaning. Names with the same or a similar meaning can conflict.
- Commercial impression. Marks that create a similar overall impression, for example by including the same dominant design element, can conflict.
The second part, whether goods or services are related, is why the same word can sometimes be used by different businesses in unrelated fields. For a store, it means you should pay most attention to businesses selling the same kind of products you plan to sell, or products customers might reasonably assume come from the same source.
Where to search
The USPTO describes a comprehensive clearance search as covering more than the federal database. For an ecommerce brand, a practical set of places is:
- The USPTO trademark search system. Search the federal trademark database. Try your exact name, plurals, misspellings, phonetic variants and the key word on its own.
- State trademark and business registries. The USPTO's clearance guidance points to U.S. state trademark and business registries, including the 50 states, Washington, D.C., and Puerto Rico. These can show businesses that never registered federally.
- Common-law use on the internet. The USPTO states that common-law rights are based solely on someone using their trademark in commerce within the United States, and it encourages checking multiple search engines for goods and services that may conflict with yours. In practice, search the name along with your product category on several search engines.
- Marketplaces and social platforms. Search the places where online sellers operate, such as marketplaces and social media handles. These are not named in the USPTO guidance as a separate step, but they are where an ecommerce name is most likely to run into a similar one.
- Domain name registries. The USPTO's list includes domain name registries. A taken domain is not a trademark problem by itself, but an active business on a close variant is a warning sign.
- Other databases. The USPTO also lists the Trademark Official Gazette, the Madrid Monitor, the Global Brand Database, EUIPO and TMview. If you plan to sell abroad, searching the relevant national or regional registers is sensible.
A simple step-by-step process
- Write down your shortlist (three to five names) and note which products each name would cover.
- Create variants for each: alternate spellings, singular and plural, words joined and separated, and phonetic equivalents.
- Search the federal database and record every similar mark you find, who owns it, what goods or services it covers and whether it is live.
- Search state registries, the open web and marketplaces. Record businesses using similar names for similar products, even without a registration.
- Sort the results. Mark each hit as "same field, very close", "same field, somewhat close", or "different field". Names with close hits in your own product area are the risky ones.
- Check the domain and handles you would need, since a name that is available in trademark terms but impossible to secure online is still hard to build.
- Keep a dated record of the searches you ran and what you found. It helps if you later speak to an attorney, and it documents the care you took.
- Decide. Drop names with close hits in your field, and take the ones that remain forward to a deeper check before you invest in branding.
Common mistakes
- Searching only the exact spelling of the name.
- Treating "the domain is free" as the same as "the name is free".
- Relying on the federal database alone, even though the USPTO says state and internet searching is the applicant's responsibility.
- Ignoring businesses that use a similar name without a registration.
- Checking only after buying inventory or packaging with the name already on it.
- Printing packaging or launching ads before the check is finished.
When to involve a trademark attorney
A search you run yourself is a screening step, not a legal opinion. Judging whether two marks are confusingly similar and whether goods are related involves legal judgment. An attorney can run a more thorough search, assess risk, and advise on filing. Consider professional advice when the brand is central to your business plan, when you find any close hit, or when you plan to expand into other countries.
What a clean search does and does not tell you
A search that finds no close matches lowers your risk, but it does not guarantee that nobody will object or that an application will be approved, because examination, third-party opposition and unregistered users can all affect the outcome. Equally, finding a similar mark does not always mean you cannot use your name, since the answer can depend on the goods involved and how the marks are used. The purpose of the search is to give you facts before you decide.
Summary
Before you name an online store, search more than the exact name. Look at the USPTO database, state registries, search engines, marketplaces and domain names, check sound-alike and look-alike variants, and focus on businesses that sell products related to yours. Keep a record, and ask a trademark attorney to review the shortlist before you commit to a name you cannot easily change.
This article is general information, not legal advice. Trademark law varies by country and depends on the facts, so consult a qualified attorney for your situation.
Sources
- USPTO, "Why search for similar trademarks?" (clearance search before applying; examining attorney only checks the federal database; state databases and the internet are the applicant's responsibility): https://www.uspto.gov/trademarks/basics/why-search-similar-trademarks
- USPTO, "Likelihood of confusion" (marks confusingly similar and goods or services related; similarity in sound, appearance, meaning and commercial impression): https://www.uspto.gov/trademarks/search/likelihood-confusion
- USPTO, "Comprehensive clearance search for similar trademarks" (federal, state and business registries, common-law rights, internet and domain name searches, Trademark Official Gazette, Madrid Monitor, Global Brand Database, EUIPO, TMview): https://www.uspto.gov/trademarks/search/comprehensive-clearance-search-similar-trademarks
- USPTO, Trademark Search (entry point to the federal database): https://www.uspto.gov/trademarks/search
