Corporate name registrations are not included. Trade names, assumed names, and fictitious names are also not generally included, but may be identified for some states. If a trademark is not found in the database, it does not necessarily mean that the trademark is available for use.
Registration does, however, offer a greater degree of protection from infringement.
Before a mark is adopted, additional searching is recommended, especially for common law usage, i.e., marks in use but not registered. Trademark words can be searched as phrases, as whole words or word beginnings, or as word fragments or word endings. Records for some marks include images. Used under license. Information received through The Service is to be used solely for internal purposes.