When should I file a 37 CFR 1.48 request for a CPA?

You should file a 37 CFR 1.48 request for a Continued Prosecution Application (CPA) whenever you need to add, remove, or change the order of inventors from the original application.

The MPEP ¶ 2.33 indicates: Any request to add an inventor must be in the form of a request under 37 CFR 1.48. This applies even if you’ve identified the new inventor in the CPA filing documents.

It’s best to file the 37 CFR 1.48 request as soon as you realize there’s a need to correct the inventorship. This ensures that the correct inventors are associated with the application throughout the examination process.

For more information on continued prosecution application, visit: continued prosecution application.

For more information on CPA, visit: CPA.

For more information on inventorship, visit: inventorship.