What is an “earlier search” in the context of PCT applications?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-27 10 Rules 4 Related FAQs 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. An “earlier search” in the context of PCT applications refers to a previous international, international-type, or national search carried out by the same or another International Searching Authority (ISA) or by a national Office. Applicants can request the ISA to consider the results of these earlier searches when conducting the international search for their current PCT application. According to MPEP 1819 , PCT Rule 4.12 states: “If the applicant wishes the International Searching Authority to take into account, in carrying out the international search, the results of an earlier international, international-type or national search carried out by the same or another International Searching Authority or by a national Office (“earlier search”)…” This provision allows applicants to potentially streamline the search process and improve the quality of the international search by leveraging previous search results. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Request for Earlier Search Results to be Considered in International Search MPEP 1819 Required Submit Copy of Earlier Search Results with Application MPEP 1819 Required Identification of Earlier Search Applications Required MPEP 1819 Required International Application Same as Earlier Search Except Language MPEP 1819 Permitted International-Type Search Required for U.S. National Applications Filed After June 1, 1978 MPEP 1819 No Request Needed for International-Type Search MPEP 1819 Required No Copy Required for Same Authority Search MPEP 1819 Required Applications Must Be Identified by Filing Date, Number, and Office in Box VII MPEP 1819 Recommended Request for Search Copies by Receiving Office MPEP 1819 Requi...