How can I search for patent assignment records online?

The USPTO provides an online database for searching patent assignment records. According to MPEP 301.01, ‘Assignment records, digests, and indexes are available in the public search room of the USPTO.’ To search online:

  • Visit the USPTO Patent Assignment Search page
  • Enter relevant information such as patent number, assignee name, or assignor name
  • Review the search results for the desired assignment information

The MPEP states, ‘The assignment records of patents and applications are open to public inspection and copies of these records may be obtained upon request and payment of the fee set forth in 37 CFR 1.19(b)(3).’

Topics: MPEP 300 - Ownership and Assignment, MPEP 301-Ownership/Assignability of Patents and Applications, Patent Law, Patent Procedure
Tags: electronic patent assignment, public records, USPTO database