Contains detailed information on 786,931 assignments and other transactions recorded at the USPTO between 1952 and 2019 and involving 1,491,485 million unique trademark properties.
Contains daily (front file - Calendar Year 2020) and annual (backfile - August 1980 - December 31, 2019) patent assignment text (no drawings/images) derived from patent assignment recordations made at the USPTO.
Use this API to retrieve patent assignment information from the USPTO assignment search database and generate XML files with the search results. An XML file with search results contains a list of found documents and their categorization. For API, please use Chrome or Safari browser.
Contains detailed information on roughly 6 million patent assignments and other transactions recorded at the USPTO since 1970 and involving over 10 million patents and patent applications.