California Business and Professions Code
Any mark and its registration pursuant to this chapter shall be assignable with the goodwill of the business in which the mark is used, or with that part of the goodwill of the business connected with the use of and symbolized by the mark. Assignment information shall be by instruments in writing duly executed and acknowledged and may be filed with the Secretary of State upon the payment of a fee as set forth in subdivision (b) of Section 12193 of the Government Code. Upon filing of the assignment, the Secretary of State shall issue in the name of the assignee a new certificate for the remainder of the term of the registration or of the last renewal thereof. An assignment of any registration under this chapter shall be void as against any subsequent purchaser for valuable consideration without notice, unless it is filed with the Secretary of State within three months after the date thereof or prior to the subsequent purchase.