This

joint trademark

means that a certain trademark owner registers several similar trademarks on the same goods, or on different trademarks in the same category. When several identical or similar trademarks are registered on goods, these mutually similar trademarks are called joint trademarks.

The first registered or mainly used trademark among these trademarks is the main trademark, and the rest are joint trademarks.

Due to the special role and function of joint trademarks, if one of the trademarks is left idle, it will not be revoked by the national trademark authority. Due to the overall role of the joint trademarks being similar to each other, the joint trademarks may not be divided, used or transferred across categories.

For example, Wahaha, Hahawa and Wahawa are all registered by Wahaha