What should I do if I don’t have the application number when executing an assignment?

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.

If you don’t have the application number when executing an assignment, you can use specific language to allow for its later insertion. MPEP 302.03 suggests the following approach: “It is suggested, however, that an assignment be written to allow entry of the identifying number after the execution of the assignment. An example of acceptable wording is: ‘I hereby authorize and request my attorney, (Insert name), of (Insert address), to insert here in parentheses (Application number , filed ) the filing date and application number of said application when known.’” This allows for proper identification of the application once the number is available, while still executing the assignment in a timely manner.