What is the primary purpose of classification in CPC?

Question

Accepted Answer

Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-27 10 Rules 5 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. The primary purpose of classification in the Cooperative Patent Classification (CPC) system is to facilitate the retrieval of technical subject matter. As stated in MPEP 905.03 : “The primary purpose of classification is to facilitate the retrieval of technical subject matter. In order to reliably retrieve technical subject matter using the CPC classification system it is important for all technical subject matter to be consistently classified.” Consistent classification ensures that users can effectively search and locate relevant technical information within the patent database. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Multipart Title Describes Separate Information Entities MPEP 905.01(a) Recommended Multipart Title Separated by Semicolon MPEP 905.01(a) Recommended Subclass Covers Refrigerators, Cold Rooms, Ice Boxes, and Other Cooling Devices MPEP 905.01(a) Recommended CPC Scheme and Definitions Must Follow Specific Rules MPEP 905.03 Classification Follows IPC Guide When No CPC Rules MPEP 905.03 IPC Classification Rules Followed When Undefined MPEP 905.03 Petitions to Expunge Secrecy-Ordered Subject Matter MPEP 1002.02(c)(1) Examiners Must Be Alert for Sensitive Subject Matter MPEP 115 Examiner Must Report Sensitive Subject Matter MPEP 115 Recommended Subject Matter Under Secrecy Order Must Be Protected MPEP 120 Required Other Related FAQs 5 FAQs Collapse How does CPC classification handle &#8220;additional information&#8221;? What is the difference between application and functional classification places in CPC? What is C-STAR (C*) information in CPC classification and why is it important? What is a C-STAR (C*) in CPC classification? What are combinat...