How do I update the list of practitioners associated with a Customer Number?

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 update the list of practitioners associated with a Customer Number, follow these steps:

1. Complete the Change of Correspondence Address Form (PTO/SB/122)
2. Provide the Customer Number and the updated list of registered practitioners
3. Submit the form to the USPTO

The MPEP 403 specifies:

‘A request to change the correspondence address or list of registered practitioners associated with a Customer Number must be made in writing.’

It’s important to note that:

• Only registered practitioners can be added to a Customer Number
• Changes will affect all applications associated with the Customer Number
• The USPTO recommends using the online Electronic Business Center (EBC) for faster processing

Keeping the practitioner list up-to-date ensures proper communication and representation for all linked patent applications.

For more information on Customer Number, visit: Customer Number.

For more information on USPTO correspondence, visit: USPTO correspondence.