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Patent and Trademark Resource Center at Oklahoma State University: Trademarks


Searching Trademarks

See Federal Trademark Searching at USPTO


Searching the USPTO Trademark database TESS:
1) Go to

2) Click on the Trademark Search System

3) Select Wordmark in the dropdown box and Select Expert search

4) Enter a search term

5) Limit by Status and Class filters on the left

6) Coordinated class will include related classes. It can be turned off to search only one class. See

7) Use the ID manual to determine the classifications

8) Use Field tags to search multiple terms. See




Assistance at USPTO

Trademark Assistance Center