(a) The secretary of state by rule shall establish a classification of goods and services for the convenient administration of this chapter. The classifications established under this section may not limit or expand an applicant’s or registrant’s rights. To the extent practicable, the classification of goods and services must conform to the classification of goods and services adopted by the United States Patent and Trademark Office.
(b) An applicant may include in a single application for registration of a mark any or all goods or services in connection with which the mark is actually being used and the appropriate class or classes of the goods or services.

(c) If a single application for registration of a mark includes goods or services that belong in multiple classes, the secretary of state may require payment of a fee for each class of goods or services.