How do I properly identify a patent in an assignment?

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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. To properly identify a patent in an assignment, you must use the patent number. According to 37 CFR 3.21 , “ An assignment relating to a patent must identify the patent by the patent number. ” This ensures that there is no ambiguity about which patent is being assigned. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Cover Sheets Required for Recording Assignments MPEP 302 Cover Sheets for Recording Documents Affecting Title MPEP 302 Government Patent Interests Must Be Recorded Promptly MPEP 302 Recording of Assignment Documents Required MPEP 302 Required Departmental Register for Governmental Interests Required by Executive Order 9424 MPEP 302 Required Governmental Registers Not Open to Public Inspection MPEP 302 Governmental Interests Available for Public Inspection MPEP 302 Governmental Interests Recorded Secretly MPEP 302 Required Governmental Instruments Recorded with Written Authority MPEP 302 Permitted No Other Instruments May Be Examined MPEP 302 Required Other Related FAQs 5 FAQs Collapse Why is it important to submit legible copies of assignment documents to the USPTO? How do I identify a provisional application in an assignment executed before filing? What information is needed to identify a national patent application in an assignment? How should I identify an international patent application in an assignment? How can I submit assignment documents electronically to the USPTO?