Under the condition that the trademark name remains unchanged (that is, the same trademark name) 1, trademark registration is a one-note per class, that is, one fee is charged for each major class, and only one payment is required to register 25 classes. Fee, registering 2 categories is a 2-time fee, it has nothing to do with the sub-category 2. There is a special situation that needs explanation. There are groups under major categories (what you call small categories). For example, there are 13 groups under category 25, from 2501 to 2513. There are many product projects under the group, such as "underwear", "children's clothing" and so on in the 25 category clothing 2501 group. When registering a trademark, if you select no more than 10 items (including 10) in a major category, you will only incur a single fee. For each additional item selected, you will need to pay an additional fee of 100 yuan, and as long as you pay, you can add as many items as you want. Can. 3. Choose projects based on your own products and future needs to avoid wasting the need to re-register in the same category later due to expansion of business and increase in products. If you still don’t understand, you can leave me a message and tell me what you are doing. Which products do you want to register your trademark on? I can tell you how many products you need to register and how much it will cost