The validity period of a Brunei trademark is 10 years, starting from the date of trademark application. It can be renewed when it expires. Application for renewal should be made 6 months before the expiration of the validity period. The validity period of each renewal is also 10 years. If no renewal application is submitted during the trademark renewal period, the trademark registration will be revoked. . At the same time, if the registered trademark is not used in good faith or has not been used for 5 years, the trademark registration will also be revoked. The use by the registered user of a trademark is deemed to be the use by the owner.