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902.03(b) Patent Classification Home Page on the USPTO Intranet - 900 Prior Art, Classification, Search
902.03(b) Patent Classification Home Page on the USPTO Intranet
The address for the Patent Classification Home Page on the USPTO Intranet is http://ptoweb/patents/siradmin/class/. The Classification Home Page is also accessible from the "Patent Examiner' s Toolkit" toolbar. The site is the intranet 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). The site currently links to the classification Internet clearinghouse for the Index to the U.S. Patent Classification (USPC) system, USPC Manual of Classification (classification schedules) and Classification Definitions in HTML and PDF formats. See MPEP 902.03(a). Examiners and the public are provided with access to identical information for the Index, Schedules and Definitions.
The classification intranet site also includes links to information such as USPC-to-IPC(7) Concordance, IPC (7) and IPC (6) Schedules, IPC(7) Guide, WIPO Handbook on Industrial Property Information and Documentation, Classification System Overview, Classification Bulletins, and the Patent Classification Retrieval system (PCRS).
The 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 This data is updated bimonthly with new issues, withdrawn patents and reclassifications.
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