How do I address paper submissions for supplemental examination proceedings?

Paper submissions for supplemental examination proceedings should be addressed differently depending on the delivery method:

1. For mail delivered by the United States Postal Service (USPS):
   Mail Stop Supplemental Examination
   Central Reexamination Unit
   Commissioner for Patents
   P.O. Box 1450
   Alexandria, VA 22313-1450
2. For hand-carried or other delivery services (e.g., FedEx, UPS, DHL):
   United States Patent and Trademark Office
   Customer Service Window
   Mail Stop Supplemental Examination
   Central Reexamination Unit
   Randolph Building, Lobby Level
   401 Dulany Street
   Alexandria, VA 22314

The MPEP recommends: “Whether the correspondence is mailed via the U.S. Postal Service mail or is hand-carried to the Office, it is strongly recommended that the Mail Stop information be placed in a prominent position on the first page of each paper filed, utilizing a large font size to direct attention to it.” (MPEP 2806)

For papers to be filed in a resulting ex parte reexamination proceeding, use “Mail Stop Ex Parte Reexam” instead of “Mail Stop Supplemental Examination” in the address.

To learn more:

• Paper Submissions
• Supplemental Examination
• USPTO
• Mailing Address