S.C. Code § 39-15-440
The owner of any such registered mark or brand may transfer, release or sell it by an instrument in writing evidencing such transfer, release or sale and, upon application to the Secretary of State when such mark or brand is registered for the recordation of such instrument in writing and upon the filing of it with the Secretary and the payment of a fee of two dollars, the Secretary shall cause such instrument of transfer, release or sale to be placed on record in a book provided and kept by him for that purpose and certificates of such transfer, upon application therefor, shall be issued by him in like manner, upon the payment of like fees, as provided for the issuance of certificates under the provisions of Section 39-15-430.
S.C. Code § 39-15-440