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Patents and Trademarks

Patent & Trademark basic information, databases, links for legal and status information

Search Most Often Used Patent Databases

Citation Search (on campus, or with UMD password)

Databases- Onsite Only

Derwent Innovations Index (requires UMD username/password)

  • Search international patents back to 1963; many have hot links to later patents that cite them as prior art


  • Please call ahead: Librarian login required
  • Faster than the USPTO free web databases
  • Offers more features and search capabilities than the USPTO free web databases
  • Includes international patents

Official GazetteMicrofilm 

  • vol.1(1872) - vol.845(1967)

Paper OG in offsite storage: 1943-1998 (ask  Librarian for assistance)

But current year OGs are online: