Patent  Tags: patents law_government_documents  

The Mississippi Library Commission was designated as an official Patent & Trademark Depository Library (PTDL) in 1990 by the US Department of Commerce, Patent and Trademark Office. A wide variety of services are provided from extensive holdings of patent & trademark resources. While the primary users are inventors, attorneys, and researchers, the services are open to the general public.

http://www.uspto.gov/go/ptdl
This is the only official website of the United States Patent and Trademark Office. Users can search for issued patents, full text since 1976 and full page images since 1790, or by published applications, published since 2001.

http://www.google.com/patents?hl=en
Free tool, but in BETA. Google Patent Search covers the collection of issued patents and millions of patent application made available by the USPTO—from patents issued in the 1790s through those most recently issued in the past few months.

http://patents1.ic.gc.ca/intro-e.html
This database lets you access over 75 years of patent descriptions and images. You can search, retrieve and study more than 1,500,000 patent documents.

http://www.european-patent-office.org/espacenet/info/access.htm
Users can search full text image patents from many European countries, including: Austria, Finland, Italy, Germany, The Netherlands, France, and the United Kingdom.

http://www.jpo.go.jp/
The Industrial Property Digital Library of the Japanese Patent Office is a searchable database of patent information held by the JPO, accessible free of charge to users via the Internet.