How to do a free USPTO trademark search

A basic USPTO search for "Acme Solutions" takes ten seconds and tells you almost nothing. The version that catches actual conflicts takes thirty minutes and uses techniques USPTO doesn't bother documenting clearly.

This walks through how to do the thirty-minute version. It's the same first-pass approach trademark attorneys run before the deeper clearance opinion.

If you haven't read our earlier guide on whether to do a trademark search at all, start there for context. This one assumes you're committed to the search and want to do it well.

What changed in 2023

USPTO retired the old TESS system (Trademark Electronic Search System) in late 2023 and replaced it with a tool now hosted at tmsearch.uspto.gov. If you find a tutorial that mentions TESS, it's outdated. The new system is faster and has a cleaner interface, but a few search tricks that worked in TESS don't work the same way now.

Two things to know going in. You don't need an account, you don't need to pay, and you don't need any third-party service. The free search at tmsearch.uspto.gov is the same database every trademark attorney uses for an initial check. The search is also updated in real time, so a mark filed yesterday will show up today.

The three searches you actually need to run

A complete first-pass trademark search isn't one search. It's three.

The first is the exact match search. Type your name in quotation marks. This catches the obvious case where someone else has registered your exact name. Most DIY searchers stop here, which is why most DIY searches miss conflicts.

The second is the partial match search. Type the most distinctive word in your name without quotation marks. If your name is "Acme Solutions," search for Acme alone. This catches all the variations: Acme Co, Acme Labs, Acme Corp, Acme Industries.

The third is the phonetic and similar-mark search. This is the one most people skip. USPTO doesn't grant marks based on identical names alone. They look at "likelihood of confusion," which includes marks that sound similar (Acme, Akmé), marks with similar meanings (Acme, Apex, Pinnacle), and marks with common prefixes or suffixes you might not have considered.

For phonetic search, USPTO's new system has a "design search" mode, which is a different feature. The simpler approach is to run separate basic searches for each phonetic variation you can think of. It's manual, but the alternative is missing the conflict.

Step-by-step: running the searches

Step 1: Open the search tool

Go to tmsearch.uspto.gov. The default mode is the basic search. That's what you want for the first two searches.

Step 2: Run the exact match search

Type your business name in quotation marks. Hit enter.

The results page returns a list of marks containing your search term. Five fields on each result matter, in this order.

The Status field tells you whether the mark is "Live" (currently registered or pending) or one of the dead, abandoned, or cancelled states. Live is the only state that creates an active conflict, but recently abandoned marks are worth flagging because the original owner may still have common-law rights.

The Mark field shows the actual registered name. Make sure the result genuinely matches your search rather than just containing your search term as a substring.

The Goods/Services field is the one most DIY searchers ignore, and it's the one that matters most. It describes what the trademark is actually registered for. A live trademark on "Acme" registered for cleaning chemicals creates almost no problem for a software company. A live trademark on "Acme" registered for cloud services creates a serious one.

The Owner field tells you whether the mark is held by an active business. A defunct corporation's trademark is harder to enforce than one held by a thriving competitor.

The Filed/Registered date tells you the mark's age. Older registrations are stronger. A mark from 2003 with continuous use is much harder to challenge than one filed last quarter.

Step 3: Run the partial match search

Drop the quotation marks. Search the most distinctive single word.

This will return many more results, most of which won't be relevant. Filter them by Goods/Services class. If your business is in software, focus on results in classes 9, 35, and 42. Results in classes 1-8 (chemicals, paints, cosmetics) usually don't matter for a tech company.

Step 4: Run phonetic and similar-mark searches

For each plausible variation, run a separate basic search.

For phonetic variants: if your name is "Acme," run searches for "Akme," "Aceme," "Akmé." If your name is "Lumen," try "Loomen," "Luumen," "Lumin."

For synonym variants: if your name is "Pinnacle," consider whether "Apex," "Summit," or "Peak" might create conflicts in your industry. They sometimes do, especially if all of them are trademarked by the same company in your space.

For common-suffix variants: search for "[Your Name] Labs," "[Your Name] Studios," "[Your Name] Co," "[Your Name] Inc," "[Your Name] Group." The classic conflict pattern is when a competitor registered "Acme Labs" and you launch as "Acme Studios" in the same industry.

It's tedious. It's also where about half the real conflicts hide.

Reading a result page in detail

Click into any individual result. The detail page is where the real assessment happens.

The Goods and Services description matters most. This is the actual scope of the trademark, written by the original applicant. Read it carefully. A mark for "computer software for managing inventory" might not block a mark for "online marketplace platform" even though both could be loosely described as "software." Trademark law is granular.

The classification numbers below it (the Nice Classes) are the formal categories. Class 9 covers most consumer software. Class 42 covers software-as-a-service. Class 35 covers business consulting and online retail. Most early-stage tech companies care most about classes 9, 42, and 35. If a conflicting mark sits in those classes, take it seriously.

The status and status date tell you the mark's current state. "Live/Registered" with a recent renewal is the strongest possible position for the mark holder. "Live/Pending" means the application is in process. "Cancelled" or "Abandoned" usually means you're in the clear, but check the date because if it was recently abandoned, the owner may still have common-law rights or could file a new application.

The specimen (in the registration filing) shows how the mark is actually used in commerce. Sometimes the specimen reveals the trademark is barely used, which weakens enforcement in practice. A mark with a specimen showing a single mockup from 2008 is much weaker than one with active product photography from this year.

What experienced searchers do that beginners miss

A few habits separate a serious search from a casual one.

They search for variations they wouldn't normally consider. If your name is "Lumen," they search for "Lumin," "Lumens," "Lumino," "Luma," and other near-neighbors. The goal isn't to confirm your name is fine. The goal is to actively try to disprove that it's fine.

They check the goods and services description, not just the class. Two trademarks in class 42 with very different descriptions don't necessarily conflict. The class is a starting point, not the answer.

They look for similar marks held by the same large companies. If you're naming a software product and a major tech company holds three trademarks for similar names in adjacent categories, that's a much bigger risk than three different small companies each holding one. Big companies enforce more aggressively and have the legal budget to make your life hard even on weak claims.

They cross-check with a Google search. USPTO covers federal registrations. A name might have meaningful common-law use without being federally registered, and Google will surface that faster than any trademark database. If you find an active business using your proposed name, even without a federal registration, that's a yellow flag worth investigating.

When to stop searching and start escalating

Bring in a professional under any of these conditions.

You found a mark that's similar but you can't tell whether it conflicts. The "likelihood of confusion" test is genuinely hard to apply to edge cases. A trademark attorney's clearance opinion ($300 to $1,500) tells you in writing whether you're safe to proceed.

You found multiple similar marks in your industry. Even if no single one looks like a clear blocker, a crowded space is a higher-risk environment for any new mark. An attorney can tell you whether the cluster of similar marks would actually slow down or weaken your own trademark application.

You're planning to file a trademark, raise capital, or build a brand worth more than the cost of an attorney's review. If your brand has any economic value to defend, the cost of a clearance opinion is small compared to the cost of finding out later that you were wrong.

You're operating internationally or in multiple states. USPTO is federal. State trademark databases and international systems (EUIPO, IPO, CIPO) each have their own search. An attorney with international experience can run all of them efficiently.

A faster way to do the first pass

USPTO's tool is the source. It's the database every other trademark service queries under the hood. But its UX is slow and the results take time to interpret correctly.

For the first-pass check before you commit to a name, NameClaim queries USPTO directly and surfaces live and pending conflicts in seconds. It runs the equivalent of the exact match and partial match searches automatically, alongside checks for domain availability and social media handles. It doesn't replace running the phonetic and similar-mark searches yourself, and it definitely doesn't replace an attorney's clearance opinion. But it's a useful filter to rule out the obvious cases before you spend thirty minutes on a deeper hand search.

The right workflow is usually a ten-second automated check first, a thirty-minute hand search if the automated check is clean, and an attorney clearance opinion if anything is borderline.

What to do with what you find

Run the three searches. Read the results carefully. Note any conflicts and the specific reasons they might or might not block you.

If you found nothing concerning, you've done a more thorough search than most founders run before naming their business. Move on to checking domain and social handle availability. If you're forming an LLC, follow that with the state Secretary of State search, covered in the LLC name availability check guide.

If you found something borderline, document what you found and email a trademark attorney. Most offer 30-minute consultations for $200 to $400. The attorney can tell you in fifteen minutes whether the conflict you found is the kind that ends your name or the kind that's safe to proceed past.

If you found a clear conflict, pick a different name. The cost of finding another option is much lower than the cost of fighting a trademark holder later.

What separates a search that catches conflicts from one that misses them isn't legal training. It's thirty minutes, a few search habits most DIY guides skip, and a willingness to actively try to disprove your own name.