In fact, trademarks do not add categories. Trademarks are based on trademark certificates. The original trademark certificate can only delete products, but not add products. What most people call the addition of a trademark category is a new trademark application. In fact, the new application has nothing to do with the original trademark certificate. After the registration is successful, it will be a new certificate and trademark number, instead of adding products under the original number and trademark certificate. Whether a new application can be successful depends on whether others have similar trademarks registered in the same category, not whether you want to add a new category.

Legal basis:

Article 3 of the "Trademark Law of the People's Republic of China" Trademarks approved and registered by the Trademark Office are registered trademarks, including commodity trademarks, service marks and collective trademarks Trademarks and certification marks; trademark registrants enjoy exclusive rights to trademarks and are protected by law.

The term "collective trademark" as mentioned in this Law refers to a mark registered in the name of a group, association or other organization for use by members of the organization in commercial activities to indicate the user's membership in the organization.

The term "certification trademark" as used in this Law means that it is controlled by an organization with the ability to supervise certain goods or services and is used by units or individuals other than the organization to certify the goods or services. The origin, raw materials, manufacturing methods, quality or other signs of specific quality of the goods or services.

Special matters concerning the registration and management of collective trademarks and certification marks shall be stipulated by the industrial and commercial administration department of the State Council.