Important Chemistry & Chemical Engineering Patents & Trademarks

Derwent Innovations Index
Search more than 11 million patent records from 40 worldwide patent-issuing authorities. These include the US Patent and Trademark Office, European Patent Office, PCT (WO) applications and the Japanes...   [more]
Supplemental URLs
    Derwent Classification System
    Derwent Manual Coding and Classification Lookup
    Derwent Patent Assignee Codes Lookup
    Kind Codes (application, examined, granted, etc.)
    International Patent Classification (IPC)

esp@cenet - European Patent Office
Also Known as: espacenet
Full text of EP, WO and other patents back to the 1970's (Also contains links to individual European country patent databases) ...   [more]
Unrestricted Access
Supplemental URLs
    Esp@cenet Help
    Esp@cenet Assistant - tutorial
    European Patent Classification
    International Patent Classification (IPC) 8
    Glossary

Finding Patent Full Text
Guide to finding the full text of a patent using Derwent Innovations Index, Esp@cenet, the U.S. Patent Office, and Patent Lens. ...   [more]
Unrestricted Access

Information on Patents for Researchers
A guide to information on patents for researchers...   [more]
Unrestricted Access

Internet Patent News Service (IPNS)
This site includes searchable "Manual of Classification" and "Index to Classification." ...   [more]
Unrestricted Access

Official Gazette of the United States Patent and Trademark Office
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Unrestricted Access
Supplemental URLs
    Patent Official Gazette (most recent 52 issues)
    Trademark Official Gazette (most recent 5 issues)

Patent Lens
Patent Lens searches granted patents from the United States, Australia, and Europe, as well as published patent applications from the United States, Australia, Europe, and the World Intellectual Prope...   [more]
Unrestricted Access

U.S. Patent and Trademark Office
Also Known as: USPTO
Covers all US patents from 1790 onwards. Download or view high-quality images of the actual pages of the patents, including diagrams and structures from 1790 onwards. Patents from 1976 - present are a...   [more]
Unrestricted Access
Supplemental URLs
    Free PDF download of all pages

United States Patent and Trademark Office Glossary
Also Known as: USPTO
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Unrestricted Access

United States Patent and Trademark Office Manual of Classification
Also Known as: Manual of Patent Classification , USPTO
Patents are classified in the U.S. by a system using a 3 digit class and a subclass to describe every similar grouping of patent art. A single invention may be described by multiple classification co...   [more]
Unrestricted Access

What Every Chemist Should Know About Patents
A guide that discusses using the patent literature and basics of patent law in a chemical setting. PDF document....   [more]
Unrestricted Access
Supplemental URLs
    2006 Supplement