Us patent office search

Inventors are encouraged to search the USPTO's patent database to see if a patent has already been filed or granted that is similar to your . Public Pair - Public Pair - Portal Applications - United States Patent. Home page of the United States Patent and Trademark Office's main web site.

Search database for trademark registrations and . Although not required prior to filing an application, you are encouraged to search the USPTO's trademark database to see if any mark has . Search Patent Assignments (changes of ownership). How to search for patents at a PTDL. Tables of patent and patent application database contents:.

Search by Organization Valid USPTO Organizations. Enter the complete Organization Code (such as HDS OTPP, 163 2746) or. Search database for trademark registrations and applications by mark, owner, .