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.
No, a continuation-in-part (CIP) application cannot be filed as a continued prosecution application (CPA). The MPEP explicitly states: “A continuation-in-part application CANNOT be filed as a continued prosecution application (CPA) under 37 CFR 1.53(d).”
Continuation-in-part applications may only be filed under 37 CFR 1.53(b). This is an important distinction to remember when considering different types of patent application filings.