How do I correct an error in a recorded assignment document?

To correct an error in a recorded assignment document, you need to submit a ‘corrective document’ to the Assignment Division. This document should include:

1. A copy of the original assignment document with corrections made, initialed, and dated by the party conveying the interest.
2. A new Recordation Form Cover Sheet (form PTO-1595) identifying the submission as a ‘corrective document’ and indicating the reel and frame number of the incorrectly recorded assignment.

The corrective document will be given a new reel and frame number and recording date. A recording fee is required for each patent application and patent affected.

As stated in the MPEP: “The recording fee set forth in 37 CFR 1.21(h) is required for each patent application and patent against which the corrective document is being recorded.” (MPEP § 323)