Trademark classes refer to a system of categorizing goods and services for the purpose of registering trademarks. The system was established by the Nice Agreement, an international treaty that standardizes the good and Services classification for trademark registration. The Nice Classification system groups all goods and services into 45 classes, with 34 classes for goods and 11 classes for services.
Each TM class represents a specific type of product or service and is identified by a number. For example, class 25 represents clothing, footwear, and headgear, while class 35 represents advertising and business management services. When applying for a trademark registration, the applicant must specify which class or classes the trademark will apply to, based on the goods or services that the trademark will be used to represent. This allows for clear and consistent identification of trademarks about specific types of goods and services classification.