Trademark search

Look up any trademark

Search marks from the USPTO, EUIPO, WIPO and more, and see each one's owner, status and classes.

Trademarks tracked
45.7M
Still active today
47%
Largest registerUSPTO
14.4M
Last updatedMost registers sync daily
Oct 28

Just filed by public companies

The newest applications from listed companies and their subsidiaries.

Browse by office

Every register in the database, largest first. Open one to step through its newest filings.

All offices

Most filed classes

Marks filed in each Nice class. Many marks cover more than one class. Class counts are from the class report of Oct 5, 2026.

  • Class 9Computers and Scientific Devices7,333,006
  • Class 35Advertising and Business6,261,356
  • Class 41Education and Entertainment4,969,037
  • Class 42Computer and Scientific Services4,951,817
  • Class 25Clothing4,188,771
  • Class 5Pharmaceuticals3,285,724
  • Class 16Paper Goods and Printed Matter3,235,465
  • Class 3Cosmetics and Cleaning Preparations2,916,338
All 45 classes

Explore the database

Other ways into the same records.

API

Get this data via the API

Everything on this page comes from the Signa API. Run the same searches from your own product.

  • GET/v1/trademarks/{id}

    One mark with owners, classes, dates and images

  • GET/v1/trademarks?q=purina

    Search marks by name across every register

  • GET/v1/offices

    Every register, its size and last sync

GET /v1/trademarks/{id}
ID=tm_01a18309-2047-732a-9a6c-c7336244cd1a
curl https://api.signa.so/v1/trademarks/$ID \
  -H "Authorization: Bearer $SIGNA_API_KEY"
Response
{
  "id": "tm_01a18309-2047-732a-9a6c-c7336244cd1a",
  "object": "trademark",
  "mark_text": "ZEHNDER MAXIPULSE",
  "office_code": "CH",
  "status": {
    "stage": "examining"
  },
  "filing_date": "2026-10-28",
  "nice_classes": [
    11
  ],
  "owners": [
    {
      "name": "Zehnder Group International AG",
      "entity_id": "ent_019eb6f8-a831-7018-a79e-b7cbf6c35665"
    }
  ]
}