How do patent examiners determine the appropriate classification for a patent application?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-27 4 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. Patent examiners determine the appropriate classification for a patent application through a systematic process: Analyze the invention’s technical content and novel features Identify the most relevant CPC symbols that cover the invention Consider both primary and secondary classifications Consult classification definitions and guidelines While MPEP 902 does not provide specific details on this process, it emphasizes the importance of proper classification: “Proper classification is essential for an effective and efficient search of the prior art.” Examiners use their technical expertise and training in classification systems to ensure accurate categorization of patent applications. Related Rules from the Manual of Patent Examining Procedure 4 rules Collapse Classification Orders Affect Existing Definitions MPEP 902.02 Recommended Examiner Definitions Must Be Updated Periodically MPEP 902.02 Recommended Classification Orders Available Online for USPTO Personnel MPEP 902.02 Classification Home Page Must Be Accessible via Toolkit MPEP 902.02 Other Related FAQs 5 FAQs Collapse How can patent examiners access the Classification Home Page? How can I access the Cooperative Patent Classification (CPC) system? What automated search tools are available to patent examiners? How does the Cooperative Patent Classification (CPC) system work? What is the purpose of the Cooperative Patent Classification (CPC) system?