How does the USPTO handle incorrect or erroneous assignment recordings?

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.

The USPTO has a specific process for handling incorrect or erroneous assignment recordings:

1. No expungement: The USPTO does not expunge or remove assignment documents once they are recorded.
2. Corrective documents: Parties can record corrective documents to address errors or provide clarifications.
3. Maintaining integrity: This approach preserves the integrity of the assignment records.

As stated in MPEP 302: ‘Even if a recorded document is subsequently found to be invalid, the recording will be maintained in the assignment records and the assignment records will not be expunged.’ This policy ensures a complete historical record of all recorded documents.

For more information on USPTO records, visit: USPTO records.