A concurrent use registration, in United States trademark law, is a federal trademark registration of the same trademark to two or more unrelated parties, with each party having a registration limited to a distinct geographic area. Such a registration is achieved by filing a concurrent use application (or by converting an existing application to a concurrent use application) and then prevailing in a concurrent use proceeding before the Trademark Trial and Appeal Board ("TTAB"), which is a judicial body within the United States Patent and Trademark Office ("USPTO"). A concurrent use application may be filed with respect to a trademark which is already registered or otherwise in use by another party, but may be allowed to go forward based on the assertion that the existing use can co-exist with the new registration without causing consumer confusion.
The authority for this type of registration is set forth in the Lanham Act, which permits concurrent use registration where the concurrent use applicant made a good-faith adoption of the mark prior to the registrant filing an application for registration. Such registrations are most commonly achieved by agreement of the parties involved, although the USPTO must still determine that no confusion will be caused.
The authority of the USPTO to issue a concurrent use registration is set forth in the Lanham Act, section 2 (d), enacted in 1947 and coded at 15 U.S.C. § 1052, which states in relevant part:
Use prior to the filing date of any pending application or a registration shall not be required when the owner of such application or registration consents to the grant of a concurrent registration to the applicant. Concurrent registrations may also be issued by the Director when a court of competent jurisdiction has finally determined that more than one person is entitled to use the same or similar marks in commerce. In issuing concurrent registrations, the Director shall prescribe conditions and limitations as to the mode or place of use of the mark or the goods on or in connection with which such mark is registered to the respective persons.