Association sign

A joint trademark generally refers to several similar trademarks registered by the same trademark owner on the same or similar goods. Among these trademarks, the main trademark is the first registered or mainly used, and the rest are joint trademarks.

Defensive mark

Defensive trade mark refers to several identical trademarks registered by well-known trademark owners on goods (services) or similar goods (services) approved for use by registered trademarks, so as to prevent others from registering and using the same trademarks on these categories of goods or services. The original trademark is the main trademark, and the rest are defensive trade mark.