MPEP Section 902.03(b), Patent Classification Home Page on the USPTO Intranet

Executive summary:

This document contains Section 902.03(b) ("Patent Classification Home Page on the USPTO Intranet ") of the Manual of Patent Examining Procedure (the "M.P.E.P."), Eighth Edition, Eighth Revision (July 2010). This page was last updated in January 2011. You may return to the section index to find a particular section. Alternatively, you may search the MPEP using the search box that appears on the left side of every page of BitLaw--you may restrict your search to the MPEP on the search results page.

For more information on patent law, please see the Patent Section of BitLaw. For patent services, see the Beck & Tysver pages.

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902.03(b) Patent Classification Home Page on the USPTO Intranet [R-5]

The address for the Patent Classification Home Page on the USPTO Intranet is http://ptoweb:8081/. The Classification Home Page is also accessible from the desktop via the Patent Examiner's Toolkit. The site is the clearinghouse for classification information published in hyper-text mark-up language (HTML) and Adobe Acrobat portable document format (PDF) by the U.S. Patent and Trademark Office (USPTO). Examiners and the public are provided with access to identical information for the Index, schedules, and definitions.

The * Intranet **>Classification Home Page site also includes links to international information such as IPC8 Concordance, IPC8 Schedules, IPC8 Catchword Index, WIPO Handbook on Industrial Property Information and Documentation, and to national (U.S.) information such as Overview of the Classification System, Classification Guides and Bulletins, and the Patent Classification Search Page.

The Patent Classification Retrieval System (PCRS)< provides Original (OR) and Cross-Reference (XR) classification information for individual patents and listings of patents contained in subclasses. This data is updated bimonthly with new issues, withdrawn patents and reclassifications.