What are the primary search tools available to patent examiners?

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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. The primary search tools available to patent examiners include: The Cooperative Patent Classification (CPC) system The United States Patent Classification (USPC) system Various automated search tools and databases According to MPEP 902 , “The primary classification and search tools used by the USPTO are the Cooperative Patent Classification (CPC) system, the United States Patent Classification (USPC) system and various automated search tools.” These tools help examiners efficiently search for and identify relevant prior art during the patent examination process. 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?