The difference between trademark classes 29 and 35 is the scope. According to relevant information, trademark category 29 refers to food and beverage categories, including animal and plant foods, beverages, frozen foods, condiments, nutritional supplements, non-alcoholic beverages, reprocessed or traded agricultural products, meat products, and canned foods. Food etc. Trademark Class 35 refers to advertising and business services, including advertising and marketing services, business information services, laboratory services, business management, business exhibitions and sales services, business agency, business secretarial services, business brokerage services, business planning, etc. There are 45 major categories of trademarks, categories 1 to 34 are product trademarks, and categories 35 to 45 are service trademarks. Among them, 29 to 33 are food trademarks.