Where should I send assignment documents that are filed with new patent applications?

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.

When submitting assignment documents along with new patent applications, the mailing address is different from the general assignment recordation address. According to MPEP 302.08:

Requests for recording documents which accompany new applications should be addressed to the Commissioner for Patents, P.O. Box 1450, Alexandria, VA 22313-1450.

This ensures that your assignment documents are properly associated with the new patent application and processed accordingly by the USPTO.