Derwent Innovations Index allows you to browse patent records by entering simple search queries. Coverage includes patent records from Derwent World Patents Index and patent citation information from Derwent Patents Citation Index. It includes links to cited and citing patents, cited articles, and full-text patent data sources.
[Note that registration is required before use and is only available for faculty, staff and students of UWM. See Research & Course Guides: Chemistry for more information.] SciFinder-n is a research tool that identifies articles, patents, conferences, books and dissertations in chemistry and medicine. Search by substance name, structure, substructure, reaction, CAS registry number, molecular formula, organization, research topic and author. Searches Chemical Abstracts, Medline and ChemZent databases simultaneously. Includes PatentPak, MethodsNow and Retrosynthesis Plan.
Based on historic patents selected for Beilstein and Gmelin databases beginning in 1920, Reaxys has added patent data since 1976 from the major patent granting organizations, e.g., USPTO, WIPO, and EPO.
This site allows for advanced search techniques such as word stemming, proximity searching, relevancy ranking and search term weighting. Also includes a new chemical search. Includes US, Europe, and Japan.
Built upon the Claims Global Patent Database, a comprehensive international patent collection provided by IFI Claims. It has chemical structure searching of documents from the major patent sources: USPTO, EPO, WIPO, and the Japanese Patent Office.