What is the USPTO’s policy on indexing additional patent numbers against a previously recorded document?

The USPTO does not process requests for indexing or cross-referencing additional patent numbers or application numbers against a document previously recorded in the Assignment Division, unless it’s an assignment. This policy is based on compliance with 37 CFR 3.11, 3.28, and 3.31.

As stated in MPEP 315: “The Office does not process requests for ‘indexing’ or ‘cross-referencing’ additional patent numbers or application numbers against a document, other than an assignment, previously recorded in the Assignment Division.”

For more information on Assignment Division, visit: Assignment Division.

For more information on document recording, visit: document recording.

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