Patent and trademark information in the United States, including free database searching of registered trademarks, registration information, pricing and contact phone numbers.

United States Patent and Trademark Office's (USPTO) patent databases - includes AIDS patents.

United States Patent and Trademark Office An Agency Of The United States Department Of Commerce

United States patent law was established "to promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their ...

The United States Patent and Trademark Office (PTO or USPTO) is an agency in the United States Department of Commerce that issues patents to inventors and businesses for their ...