What is the purpose of a “pre-classification” search in patent examination?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-27 7 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. A “pre-classification” search in patent examination serves several important purposes: To identify the most appropriate CPC classification for a new patent application To determine if the application should be routed to a different Technology Center To find relevant prior art early in the examination process According to MPEP 909.01(a) , “When an application is received in a Technology Center, the supervisory patent examiner or primary examiner routes the application to a classified file based on a preliminary classification.” This preliminary classification is typically determined through a pre-classification search, which helps ensure efficient routing and examination of the application. Related Rules from the Manual of Patent Examining Procedure 7 rules Collapse Examiner Can Submit Classification Challenge for Improper C* Designations MPEP 909.01(a) Permitted Application Must Be Fully Classified on Receipt MPEP 909.01(b) Required Classifications Required for Examiner Assignment MPEP 909.01(b) Permitted Provisional Applications Not Classified or Assigned MPEP 909.01(b) Automated Routing for Examiner Assignment MPEP 909.01(a) National Security Classified Patent Application Must Be Declassified Before Publication and Allowance MPEP 120 Declassified Patent Application Required MPEP 130 Other Related FAQs 5 FAQs Collapse What are C* designations in patent application classification? Can CPC symbols be changed during the patent examination process? Can CPC classification for a patent application change during examination? How does CPC classification affect the examination of new patent applications? How are CPC symbols assigned to new patent applications?