Patent Database Searching Aids and Techniques

Patent Search Aids

- For U.S. Patents: U.S. Patent Classifications; http://patents.uspto.gov/CLASSES/classes.html; Browse the U.S. Patent Classifications.; http://patents.uspto.gov/CLASSES/classes.html; Search the U.S. Manual of Classification.; U.S. Patent Classifications with Definitions; http://patents.cnidr.org/pto/classes.html; CNIDR is constructing a series of hyperlinked Patent; Classificationspages as part of the Patents Project.; This page provides direct links into the individual U.S.; Classification Schedule pages and the U.S. Class Definitions.

- For Foreign Patents: Eurodic Autom; http://www2.echo.lu/edic/; Created by the European Union, translates between 10; European Languages (Danish, Dutch, English, French,; German, Italian,Portuguese, Spanish, Swedish, and Finish).; Introductory Manual to the International Patent Classification (IPC); http://www.wipo.org/eng/general/ipc/manual/index.htm; International Patent Classification in 5 Languages; http://www.dagostini.it/patclass/patclass; 5-Language (English, German, French, Spanish, Italian); Interactive Patent Terminology & Classification by Giovanni; D'Agostini; Country Codes - WIP0 Standard ST. 3; http://www.wipo.org/eng/general/pcipi/standard/st3.htm; Patent Kind Codes; http://www.questel.orbit.com/patents/kind.html; This list from Questel identifies the various stages, by; each country, that a patent application moves through during; its life cycle

- For Chemical Abstracts: Patent Coverage in Chemical Abstracts; http://www.cas.org/EO/caspat.html; International Patent Classifications Lists for items in CA; Kind Codes for Patents in Chemical Abstracts Online; http://www.cas.org/EO/patkind.html