Where can I find current classification information for U.S. patents?

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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 MPEP 902.03 provides several resources for finding current classification information for U.S. patents: Patent Classification Home Page: Available at www.uspto.gov/Classification . This site serves as a clearinghouse for classification information published in HTML and PDF formats. Automated Search Tools: EAST (Examiner’s Automated Search Tool), WEST (Web-Based Examiner Search Tool), and SEARCH (Patents End-to-End Search tool) provide current classification information for all U.S. published applications and patents. USPTO Intranet: For patent examiners, classification information is available on the USPTO intranet at https://ptoweb.uspto.gov/patents/classification-resources/ . These resources offer comprehensive access to classification data, schedules, and definitions, allowing users to search and browse patent classifications effectively. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Classification Home Page Must Be Accessible via Toolkit MPEP 902.02 Access to U.S. Patent and Application Full Texts via PE2E SEARCH MPEP 902.03(e) Access to Patent Application Files via PE2E SEARCH MPEP 902.03(e) Classification Orders Available Online for USPTO Personnel MPEP 902.02 Foreign Patent Documents with English Abstracts Available Since 1978 MPEP 902.03(e) Instructions for Accessing Documents on PE2E SEARCH MPEP 902.03(e) Permitted Classification Orders Affect Existing Definitions MPEP 902.02 Recommended Examiner Definitions Must Be Updated Periodically MPEP 902.02 Recommended Access to Abandoned Published Application Files Is Allowed MPEP 103 Required Public Access to Issued Patent Applications MPEP 101 Required Other Related FAQs 5 FAQs Collapse What classificat...