What is the proper procedure for correcting inventorship in a CPA?

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.

The proper procedure for correcting inventorship in a Continued Prosecution Application (CPA) is to file a request under 37 CFR 1.48. This applies whether you’re adding or removing an inventor. The MPEP guidance states: ‘Any request to add an inventor must be in the form of a request under 37 CFR 1.48.’ This formal request ensures that the USPTO properly processes and recognizes the change in inventorship.

For more information on CPA, visit: CPA.

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