What fees are required to correct a typographical error on a patent assignment cover sheet?

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 correct a typographical error on a patent assignment cover sheet, you must pay the required fee for each application or patent that needs correction. According to MPEP 323.01(a):

“The party requesting correction should submit… (C) the required fee for each application or patent to be corrected (37 CFR 3.41).”

The specific fee amount is set by 37 CFR 3.41 and may change periodically. It’s important to check the current USPTO Fee Schedule for the most up-to-date fee information. The fee is required per application or patent, so if multiple documents need correction, multiple fees may apply.