Rabin & Berdo, PC

District of Columbia law firm, offering a downloadable brochure on mechanical and electrical patents.
http://www.awoodpatents.com

Patently Absurd!

Absurd, weird and wacky patents, mainly from the UK Patent Office, also offering links to serious patent information.
http://www.patent.freeserve.co.uk

Intellectual Property Law Server

Answers to frequently asked questions about patents, copyrights, and trademarks, from the law firm of Oppedahl & Larson.
http://www.patents.com/

Strategy Patent, LLC

Information on the creation and valuation of intellectual property assets, particularly patents. From Coleman Sudol LLP.
http://www.patentassets.com/

PatentGopher

A free patent retrieval service that delivers patents in portable document format (PDF) via email or direct download.
http://www.patentgopher.com

Delphion Intellectual Property Network

A premier site for searching, viewing, and analyzing patent collections worldwide.
http://www.delphion.com

CrazyPatents.com

Examples of wacky and crazy patents that have been issued to inventors throughout the years.
http://www.crazypatents.com

HowStuffWorks: How Patents Work

Easy to read illustrated narrative that provides basic information on patents, what they are, how they work and how an inventor goes about getting one.
http://www.howstuffworks.com/patent.htm

Patents4Technologies

Overview of United States patent law with reference to court rulings.
http://www.patents4technologies.com/PatentLaw.htm

Thomas

Information of all patent-related bills currently pending before the U.S. Congress.
http://thomas.loc.gov/cgi-bin/query/r?c104:patent

Ius Mentis

Crash courses, answers to frequently asked questions, and articles on patents and other intellectual property rights, aimed at people with a background in information and communication technology.
http://www.iusmentis.com/

Greenberg Traurig, LLP - Patent Law Net

Interactive resource for patent counsel and intellectual property managers.
http://www.patentlawnet.com/

Protection of Software-related Inventions in Europe and Japan

Information regarding the protection of computer-related inventions, from the law firm of Ladas and Perry.
http://www.ladas.com/Patents/Computer/Computer.EPOJP.html

CAMBIA Intellectual Property Resource

Organization devoted to international agriculture and health sciences. Offers patent search, biotechnology white papers, and tutorials.
http://www.cambiaip.org/

Patent Alert

Providing email updates about inventions recently patented in the United States.
http://www.patentalert.com/

thinkBiotech LLC

Information on pharmaceutical issues, including patent claims and expirations, sales figures, and generic equivalents.
http://www.thinkpharm.com/

Patently Obvious

Weblog describing cases and developments in patent law.
http://patentlaw.typepad.com/

Patent Search Information Site

Introductory guide to patent information and the conduct of searches.
http://www.patent-search-information.com

Free Patents Online

United States patent data, along with a list of humorous patents.
http://www.freepatentsonline.com

Freshpatents.com

Listing of recent US patent applications with keyword monitoring and RSS feeds.
http://www.freshpatents.com/

SoYouWanna Patent Something?

Article discusses step-by-step the patent application process.
http://www.soyouwanna.com/site/syws/patent/patentFULL.html

British Library - Patents Information Services

Links to databases and gazettes in patents, designs and trademarks, advice on how to search databases plus historical information.
http://www.bl.uk/patents

Free PDF Files of U.S. Patents

Retrieve the full text and images of US patents as PDF files.
http://b435-boas.stanford.edu/home/other_projects/patent/patent_PDF.html

The '362 patent

Seeking to invalidate U.S. Patent 6,044,362, relating to electronic invoicing.
http://www.patent6044362.com

Software Patent Institute

Nonprofit corporation formed to provide courses and prior art about software technology to help improve the patent process.
http://www.spi.org/

James Dyson

Help and guidance for inventors.
http://www.dyson.com/invent/