Trademark cross-class protection

Generally speaking, it refers to the expanded protection of well-known trademarks. The law stipulates that in principle, your registered trademark A can only be used on the goods or services you registered. It is protected within the scope, and if your registered trademark A is a well-known trademark, it can be protected beyond this scope. Even if others are in different goods or service fields, they cannot register trademark A again.

However, in practice, cross-class protection of well-known trademarks is not absolute. If the fields of goods or services are indeed far apart, it is still difficult to receive protection.

Defensive trademark

means that in order to prevent others from registering trademark A in different goods or service fields, you take the initiative to register and protect it in these other fields. In other words, if you are not a well-known trademark and want to be protected within a wider scope, you can simply take the initiative to occupy these scopes.

In short, cross-class protection is a (well-known) trademark whose popularity and reputation are strong enough to have protective effects in different goods or service fields, while defensive trademark protection is multiple Each trademark can jointly build a larger protection network to implement self-protection.

For better understanding, my explanations are not strictly organized according to the law. If you have any questions, you can add them.