On November 30, 2023, Vietnam’s Ministry of Science and Technology issued Circular No. 23/2023/TT-BKHCN detailing the implementation of some articles of the 2022 Intellectual Property Law (“IP Law”) and Decree No. 65/2023/ND-CP with respect to the establishment and protection of industrial property rights (“Circular 23”). Circular 23 took immediate effect upon issuance and provides further guidance and necessary clarifications for the implementation of the IP Law, which took effect on January 1, 2023. Some of the most critical provisions of Circular 23 related to the establishment of IP rights are discussed below. Common Procedures Circular 23 enumerates and details the cases where an application will be re-examined, as stipulated in various articles of the IP Law. The circular also adds the procedure in which a protection title can be partially granted, as newly stipulated in Article 118 of the IP Law. The procedure applies to patent, industrial design, and trademark applications. Grounds for IP rights invalidation are further detailed in the new circular. On the patent side, it provides a list of situations where claims are deemed to go beyond the scope of the specification. For trademark registrations, it specifically defines two conditions in which “bad faith” grounds can be used to cancel a registration. The circular sets out the procedure for opposing an application, as stipulated in the new Article 112a of the IP Law. Unlike previous regulations, Circular 23 sets out that the IP Office will inform the applicant of all oppositions (whether or not the opposition is grounded), except for obvious cases where the IP Office will consider the registrability of an opposed mark without informing the applicant. To facilitate applicants and related parties, some timeframes have been extended from one to two months. This includes, for example, the time limit for the applicant and the