USPTO Trademark Search Search the United States Patent and Trademark Office (USPTO) database to check trademark availability and get registration details. Uses web search as the primary method — most USPTO and trademark database sites block automated requests. When to Use User wants to check if a name/brand is trademarked User is researching trademark availability before naming a product User wants details on an existing trademark registration User asks "is [name] trademarked?" or "can I use [name]?" Important Disclaimer This skill provides informational data only — not legal advice. Always recommend the user consult a trademark attorney for definitive guidance. Trademark availability depends on many factors beyond exact-match searches (similarity, likelihood of confusion, goods/services classes, etc.). Known Limitations Direct web_fetch calls to trademark databases will not work — they block automated requests: Source Direct Fetch Status tmsearch.uspto.gov ❌ JS-rendered, no useful content Blocked tsdr.uspto.gov ❌ Returns 403 Blocked trademarkia.com ❌ Returns 403 Blocked branddb.wipo.int ❌ JS-rendered Blocked Web search is the primary (and reliable) approach. Search engines index these databases, so you can find trademark records through web_search queries with site: filters. Step 1: Web Search for Trademark Records (Primary Method) Use web_search to find trademark registrations. This is the most reliable approach. Search USPTO Records web_search: "BRAND_NAME" trademark site:tsdr.uspto.gov web_search: "BRAND_NAME" trademark site:uspto.gov Search Trademarkia (Indexed by Search Engines) web_search: "BRAND_NAME" site:trademarkia.com Trademarkia results typically include: mark name, serial/registration number, status (LIVE/DEAD), owner, filing date, and Nice Classification class. Search Broadly web_search: "BRAND_NAME" trademark registered web_search: "BRAND_NAME" site:tmdn.org What to Look For in Results TSDR links (tsdr.uspto.gov/statusview/sn... or rn...) → existing trademark record with serial/registration number Trademarkia listings → status, owner, class, filing/registration dates Company websites claiming "®" or "™" → claimed/registered marks Nice Classification class for goods/services — critical for determining if a mark conflicts with your intended use Step 2: Extract Details from Search Results Search results from Trademarkia and USPTO typically contain enough detail in the snippet: Mark name and any design description Serial number (application) or Registration number Status: LIVE (active) or DEAD (abandoned/cancelled/expired) Owner name Class(es) of goods/services Filing and registration dates If you need more detail, try fetching the specific Trademarkia result URL — some individual pages may load, though the search pages are blocked. Key Status Values Status Meaning LIVE Active trademark — registered or pending DEAD Abandoned, cancelled, or expired Registered Fully registered and active Published for Opposition Pending — 30-day window for objections Abandoned Application was abandoned Cancelled Registration was cancelled Expired Registration expired (not renewed) Step 3: Check International Marks (Optional) For products with international reach, also search: web_search: "BRAND_NAME" trademark site:branddb.wipo.int web_search: "BRAND_NAME" trademark international WIPO Trademark Classes (Nice Classification) When reporting results, include the goods/services class: Class Category 9 Software, apps, electronics 25 Clothing, footwear 35 Advertising, business management 36 Financial services, insurance 41 Education, entertainment 42 Software design, SaaS, tech services A trademark only protects within its registered class(es). A name can be registered by different entities in different classes. Output Format Availability Check
Trademark Search: "BRAND NAME"
⚠️ Disclaimer: This is an informational search only, not legal advice. Consult a trademark attorney before making business decisions.
Findings
Exact Matches Found: Yes/No 1. BRAND NAME — Registration #1234567 Status: 🟢 LIVE / Registered Owner: Company Name, Inc. Filed: Jan 15, 2020 · Registered: Aug 3, 2020 Class: 9 (Software), 42 (SaaS) Goods/Services: "Computer software for project management..." 🔗 https://tsdr.uspto.gov/statusview/rn1234567 2. BRAND NAME — Serial #90123456 Status: 🔴 DEAD / Abandoned Owner: Other Company LLC Filed: Mar 1, 2019 · Abandoned: Sep 15, 2019 Class: 35 (Business services)
Similar Marks Found
- BRAND NAYME — Reg #2345678 (Class 9, LIVE)
- BRANDNAME — Reg #3456789 (Class 42, LIVE)
Assessment
- [Summary of what was found]
- [Note relevant classes vs user's intended use]
- [Recommend next steps] Quick Check
Trademark: "BRAND NAME"
✅ No exact matches found in USPTO database. ⚠️ Similar marks exist: [list] 📋 Recommended classes to check: 9, 42 (if software) Next steps: Consider a comprehensive search with a trademark attorney before filing. Error Handling No results from web search: This doesn't mean the name is available — it may not be indexed yet, or it may be too new. Note this uncertainty. Conflicting info across sources: Trademarkia may lag behind USPTO. When in doubt, note the discrepancy and recommend checking the official USPTO site directly. Too many results: Narrow with class filters or add the specific goods/services category to the search query. Important Caveats to Always Mention Common law trademarks exist without registration — a name can be "taken" even if not in the USPTO database State registrations are separate from federal (USPTO) registrations International marks may conflict — check WIPO if relevant Likelihood of confusion matters — similar (not just identical) marks can conflict Class matters — same name can coexist in different goods/services classes This is not legal advice — always recommend consulting a trademark attorney Examples Example 1: "Is 'Stellar' trademarked?" web_search: "Stellar" trademark site:tsdr.uspto.gov web_search: "Stellar" site:trademarkia.com Review search result snippets for serial/registration numbers, status, class Present findings with class info and assessment Example 2: "Can I use 'NovaPay' for a fintech app?" web_search: "NovaPay" trademark web_search: "NovaPay" site:trademarkia.com Check results for marks in Class 9 (software) and Class 36 (financial services) Present findings and note relevant classes for fintech Example 3: "Check trademark status for registration number 5678901" web_search: USPTO trademark registration 5678901 Look for TSDR or Trademarkia links in results with status details Present the current status, owner, and class information Data Sources All accessed via web_search (direct fetch is blocked by these sites): USPTO Trademark Search: tmsearch.uspto.gov — Official US trademark database USPTO TSDR: tsdr.uspto.gov — Status and document retrieval Trademarkia: trademarkia.com — User-friendly trademark search WIPO Global Brand Database: branddb.wipo.int — International trademarks