Searchable database of U.S. patents with downloads available in PDF format, from Semantic Dream Inc.

Weblog covering patent law developments, from attorney Stephen M. Nipper.

Retrieve the full text and images of US patents as PDF files.

Links to databases and gazettes in patents, designs and trademarks, advice on how to search databases plus historical information.

Article discusses step-by-step the patent application process.

Help and guidance for inventors.

Nonprofit corporation formed to provide courses and prior art about software technology to help improve the patent process.

Seeking to invalidate U.S. Patent 6,044,362, relating to electronic invoicing.

Listing of recent US patent applications with keyword monitoring and RSS feeds.

United States patent data, along with a list of humorous patents.