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.
ThomasNet® Thomas Register of American Manufacturers Register for free use; the Thomas Register includes a "Brand Name" search tab. Note that not all brand names are registered trademarks, so this is another source that will list a brand name being used.
Daniel Hanne
dhanne@csupomona.edu
October 2009
