What is the general mailing address for patent-related correspondence?

The general mailing address for patent-related correspondence is:

Commissioner for Patents
P.O. Box 1450
Alexandria, Virginia 22313-1450

This address should be used for patent applications, replies to notices of informality, requests for extension of time, notices of appeal, and other patent-related matters processed by organizations reporting to the Commissioner for Patents.

As stated in the MPEP: Correspondence in patent-related matters under the direction of the Commissioner for Patents should be addressed to: Commissioner for Patents P.O. Box 1450 Alexandria, Virginia 22313-1450

To learn more:

• patent correspondence
• mailing address
• USPTO
• patent applications