How to check if a brand name is trademarked in Claude

Find out who already owns a name in your target markets before you order packaging or register a domain. Connect the Firecrawl connector and Claude uses Firecrawl Alexandria to check if a brand name is trademarked, reading the public registers of IP Australia, the USPTO, the UK IPO and the WIPO Global Brand Database.

• Founders narrowing a list of company or product names before they spend on design, a domain or legal fees.
• Marketing teams confirming that a new product line or campaign name isn't registered in the classes they trade in.
• Anyone holding a cease and desist letter who wants to read the sender's registration, its current status and its owner of record.

Connector: the Firecrawl connector. Hands Claude the trademark register tools from Firecrawl Alexandria and bills each lookup to whichever Firecrawl team you linked.

Explore Firecrawl Alexandria data providers across categories

Replace the name with your candidate and pick the class your product sits in (class 32 is for non-alcoholic beverages):

Use Firecrawl to check who holds the name "Liquid Death" before I use it
for a drinks brand. Search the trademark registers in Firecrawl
Alexandria and tell me the price of each tool before running it.
 
Report back with:
- Live USPTO marks for the name, with owner, registration number,
  classes and the goods each covers.
- WIPO Global Brand Database records in class 32, grouped by office,
  with status and owner.
- Sound-alike or look-alike names that WIPO's phonetic matching turns up.
- Any Australian register entries, including removed or refused marks
  and the reason given.
 
Stick to what the registers say. Don't call the name safe or available,
and point out where I should bring in a trademark attorney.

• Hook up Firecrawl. On the Firecrawl connector listing, select Connect. A browser tab opens on Firecrawl, where you log in (or sign up free), pick the team to bill and approve the connection. There's no API key or MCP config to manage, and Firecrawl in Claude has the full walkthrough.
• Enable it per chat. From the + menu, choose Connectors and turn Firecrawl on.
• List your markets and classes. Registers are territorial, so decide which countries you'll sell in and roughly which goods or services classes fit your product before you ask.

Clearing a name means reading current register entries and applying a legal test that goes far past matching spelling. Claude on its own struggles with both, in six ways.

1. Register changes after the cutoff are invisible. Claude's training data stops at a cutoff date that varies by model, and Anthropic says events after that point may be unknown to it (Anthropic). An application filed or abandoned since then won't show in an answer from memory, and Anthropic also notes Claude can occasionally give incorrect or misleading responses (Anthropic). Verify any registration number against the register itself.
2. Conflict isn't about exact spelling. According to the USPTO, marks can be confusingly similar if they share sound, appearance, meaning or overall commercial impression, and the relatedness of the goods or services also decides a conflict (USPTO). Checking only the identical name leaves most of the risk unexamined.
3. Filings still in examination matter. USPTO examiners search both registered and pending marks, and an application filed earlier for related goods can block yours if it proceeds to registration (USPTO). Brand pages and press coverage seldom mention pending applications.
4. Use alone can create rights. US common-law rights arise from using a mark in commerce, and someone's prior use can narrow the protection a later federal registration offers (USPTO). The UK protects some unregistered marks through passing off (UK IPO).
5. Each registration is territorial. A mark is protected only in the countries or regions where it's registered (WIPO), so finding nothing in the US tells you nothing about the EU or Australia.
6. Clearance takes more than registers. The USPTO's checklist for a comprehensive search covers federal and state registers, domain names, international databases and the general web, and it says an attorney can run that search, interpret it and advise you on filing (USPTO).

A trademark check in Claude relies on four parts:

• Firecrawl Alexandria: Firecrawl's catalog of structured data for agents. It lists 100+ official providers paid under license, public-record sources such as these registers, and Firecrawl's own indexes of web pages, research, developer docs and government publications. In Firecrawl's evaluation of 845 tasks, run with one model and one prompt set and scored blind by an AI judge, Firecrawl Alexandria put agents 21% ahead on answer quality compared with built-in web tooling.
• The registers themselves: Claude can search USPTO word marks and pull any serial number's status file and recorded assignments, query many offices at once on WIPO with fuzzy or phonetic matching, open a UK case by its number and search Australia's register by word, owner or number.
• Inputs and price checked first: before running a tool, Claude reviews what it needs and what it costs, and the answer names the tools it used and the credits they took.
• Read-only access: the tools look up public records. Filing, opposing or giving a legal view on a mark is outside what they do.

Fit the prompt to the decision you're making. A founder choosing between names needs broad coverage across markets:

With Firecrawl, compare three names for a pet food brand: [name one],
[name two] and [name three]. For each, look for live USPTO marks and run
a phonetic WIPO Global Brand Database search in Nice class 31 across the
US, GB, EM and AU offices. Give me one table per name with mark, office,
status, owner and classes, and show prices first.

Someone replying to a demand letter needs one registration and its owner:

Use Firecrawl to get the USPTO status record for registration 5971065.
I want the owner, status, goods and services, first-use dates and the
five newest prosecution history entries, then any recorded assignments
for that mark.

Spelling out the register, the classes and the fields you want keeps Claude on the register tools rather than a general web search.

Open a UK record

Use Firecrawl to read the UK IPO case record for trade mark
UK00002187988. Give me its status, owner, renewal date and the goods
listed under each class.

See a company's UK portfolio

With Firecrawl, search UK IPO owners for "Fresh Trading Limited", then
list the UK marks under each matching client ID with number, mark, type,
classes and status.

Go deeper on Australia

Use Firecrawl to search the Australian trade mark register for "liquid
death" and open each result's full record, history log included.

Check prices before spending

With Firecrawl, find the Firecrawl Alexandria tools that search
trademark registers and list each one's price per call. Don't run any
yet.

There's no charge to browse the trademark tools or see what they cost. Credits leave your balance once Claude actually runs one, and plan sizes are on Firecrawl pricing.

The starter prompt typically runs four to eight calls, and Claude tells you which tools it used and how many credits went on them.

• How to look up an LLC or corporation in Claude: check whether the name is taken as a registered company, which is a different question from who holds the trademark.
• USPTO patent search: the USPTO source in Firecrawl Alexandria also finds granted patents and published applications, searchable by inventor, assignee or title.
• WIPO coverage tool: shows which offices feed the Global Brand Database and how fresh each collection is, worth a look before you lean on a search.

• Four registers. Coverage is the US, UK and Australian offices plus WIPO's database. A full clearance search would also review state registers, domain names and names in use without registration, and none of those are here.
• Uneven tools across registers. There's no UK IPO word search, so get the UK number from WIPO first, and the owner search returns UK national marks only. WIPO's collections refresh on their own schedules, which its coverage tool reports.
• No legal advice. A register result is a record of filings. A qualified trademark attorney is the person to say if a close mark is a genuine conflict and whether the name is yours to use or register.