There are numerous pitfalls that may arise whenever any other party is allowed to use your mark.
James A. Rhodes State College
The seal that Rhodes State College uses on the diplomas it issues to its students is registered with the U.S. Trademark Office. REGISTERED TRADEMARK 3,223,832
A logo or design that is used in association with goods or services can be registered with the U.S. Trademark Office.
While it is not illegal to allow (i.e., license) someone else to use your mark, there are numerous pitfalls that may arise whenever any other party is allowed to use your mark.
Unless you have a nationally recognized, famous mark that could raise significant revenue from licensing other goods and services to use the mark, the best approach is to avoid allowing any other party to use your mark. In any event if you believe the circumstances may merit further consideration, seek advice from an experienced trademark attorney.