How can I access patent assignment records online?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-09 10 Rules 5 Related FAQs This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice. Patent assignment records can be accessed online through the USPTO’s Assignment Search database. The MPEP states: Assignment records that affect the title of patents and patent applications are recorded in the USPTO’s Assignment Recordation Branch . To access these records: Visit the USPTO Assignment Search website Enter the relevant patent or application number, assignee name, or other search criteria Review the search results for assignment information This online database provides public access to assignment records, allowing for easy verification of patent ownership. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Record of Patents and Applications Required MPEP 301 Required Definitions for Ownership and Assignability of Patents and Applications MPEP 301 Required Assignment of Patent Must Be in Writing MPEP 301 Recordation of Assignment Provides Public Notice MPEP 301 Recommended Assignment of Patents Must Be in Writing MPEP 301 Required Recordation of Assignment Provides Public Notice MPEP 301 Permitted Assignment of Patent Transfers Ownership Interest MPEP 301 Two Ways to Record Assignments for Patent Property MPEP 301 Permitted Patent Assignments Must Be In Writing MPEP 301 Assignment of Patent Rights Permitted MPEP 301 Permitted Other Related FAQs 5 FAQs Collapse What information is available in USPTO patent assignment records? How does the USPTO handle confidential patent assignment information? What is the significance of recording a patent assignment? Are all patent assignment records publicly accessible? What information is available in the USPTO&#8217;s assignment database?