Can new matter be added in a CPA?

No, new matter cannot be added in a Continued Prosecution Application (CPA). The MPEP clearly states: No amendment in an application under this paragraph (a continued prosecution application) may introduce new matter or matter that would have been new matter in the prior application. Any attempt to add new matter will be denied entry by the examiner. If an applicant needs to add new matter, they should consider filing a continuation-in-part application under 37 CFR 1.53(b) instead of a CPA.

To learn more:

• CPA
• New Matter
• Patent Application