1. if it is found that the registered trademark of European * * * has not been used in accordance with the law for five consecutive years, it may apply to the internal cooperation agency for cancellation of the registered trademark. Due to special reasons, the registered trademark will be cancelled without legal permission.

2. If it is found that the registered trademark of the European Union has become a generic name or is suspected of misleading the public, you can apply to the Cooperation Bureau for cancellation.

3. Early trademark owners can apply for registration of invalid trademarks according to their prior rights.

4. If a trademark infringement lawsuit is filed, an application for revoking the registered trademark of EC or invalidating its registration must also be filed. The European Court of Justice revoked or declared the registered trademark of the European Union according to law. .

5. Only the internal cooperation bureau can accept the direct application for canceling the registered trademark of the European * * * or declare it invalid. If you are not satisfied with the decision of the internal cooperation agency, you can refer the case to the International Court of Justice of the European Union.