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Patent Assignment Search API (Version 1.4)

Published by Open Data Portal Team | Department of Commerce | Metadata Last Checked: September 30, 2025 | Last Modified: 2025-08-28
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.

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