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University of Texas University of Texas Libraries

Patent Research Strategies

Patent Ownership

Find who owns a patent with the USPTO Patent Assignment Query Menu

  • Contains all recorded information since August 1980
  • NOTE: this only contains information on issued patents and published applications. 
  • You can search by patent number, assignor, and assignee name

You can also try searching in Google Patents by patent number and scroll down to "Legal Events."  If there was a change in ownership it would be listed as an Assignment in the Legal Events section. Click on image below to view example....


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This work is licensed under a Creative Commons Attribution-NonCommercial 2.0 Generic License.