Copyrights - Patents
Search - Int Ref HOME - Index A to Z

Trademarks (U.S.)
Official website of the United States Patent and Trademark Office. In addition to searching the US Trademark Database you may also obtain, trademark forms online, information about Fees and view FAQs. The links to "Legal Resources" include laws, treaties, the Official Gazette, etc. for researching and obtaining a trademark.

California Secretary of State - Trademarks and Service Marks
The Frequently Asked Questions page is very helpful and includes definitions. See also California Business Search.

Thomas Register of American Manufacturers
Register for free use; the Thomas Register includes a "Brand Name" search.