You are using an outdated browser and your browsing experience will not be optimal. Please update to the latest version of Microsoft Edge, Google Chrome or Mozilla Firefox. Install Microsoft Edge

December 11, 2023

New Circular Provides Additional Guidance on Vietnam’s IP Law

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 opponent to respond to the other party’s opinion, the time limit for the applicant to submit documents clarifying doubtful information in a trademark application pursuant to the IP Office’s request, and others.

Patent

The long-awaited procedure and requirements for utilizing the search and examination results of a foreign IP office for a corresponding application is finally introduced under Circular 23. However, it is still unclear which offices will be on the list of applicable foreign IP offices, and it is up to the Ministry of Science and Technology to issue this list in the future.

Small changes are also set out to adapt to the modified regulations on the criteria of novelty and requests for substantive examination, among others.

Industrial Design

The definitions of “a part for assembly into a complex product” and “complex product”, as stipulated in Article 4 of the IP Law, are introduced. It is worth noting that the “part” and the “complex product” will be deemed different kinds of products.

Trademark

Circular 23 removes the potentially burdensome requirements for submission of evidence in cases where the IP Office doubts the control and certification function of applicants filing for collective or certification marks. In addition, the circular expressly clarifies that formality examination of such marks will not cover the examination of specific characteristics of the goods/services, or methods of assessment, control, protection, etc., of such goods or services.

The circular also adds some criteria for registration of sound marks, to be in line with the amended IP Law, and clarifies some helpful points, such as evidence proving the secondary meaning of a mark, and criteria to assess if two goods/services are considered similar.

Appeals

Circular 23 further specifies which decisions can or cannot be appealed, and also supplements some types of appeal requests which will not be acknowledged (i.e., where no illegal element of the appealed decision is pointed out, where the appealed objects are related to state secrets, etc.).

Under the previous circular, no new facts (i.e., those which had not yet been introduced before the appealed decision was issued) would be accepted in the appeal stage. However, under Circular 23, only facts that existed during examination but for some reason were not yet known or considered by the IP Office or any relevant parties are not accepted at the appeal stage. As such, it is still unclear if truly “new” arguments or information (such as recently issued letters of consent, cancellation decisions against citations, etc.) can be accepted in appeal requests.

Outlook

Despite some shortcomings, Circular 23 provides more comprehensive guidance than its predecessors on the establishment of IP rights in alignment with the 2022 IP Law. The new circular is expected to serve as a detailed manual on the application of the amended IP Law and will effectively shape the IP practice in Vietnam.

RELATED INSIGHTS​ 

August 4, 2026
Intellectual property (IP) protection sometimes hinges on fame and recognition. However, this alone will not always be sufficient to overcome an IP dispute when it involves contractual obligations or registered rights. Below are five cases from around the world that tackle some of the basic issues in IP registration, ownership, commercialization, and enforcement. 1. USA: Taylor Swift Trademark Application Refused Taylor Swift recently filed a trademark application to register “The Life of a Showgirl,” which is the title of her 12th studio album. When examining a trademark application, the examiner considers various factors before deciding whether it should be registered. One of these factors is whether there is a likelihood of confusion (i.e., would a regular consumer mistake the origin of the trademark). In Taylor Swift’s case, the US Patent and Trademark Office (USPTO) decided that that there would be a risk of confusion. This decision was based on the existing registered trademark, “Confessions of a Showgirl,” owned by Maren Wade, which was registered in 2015. The USPTO refused Taylor Swift’s application based on the shared key distinctive element “of a showgirl,” the lack of sufficient distinguishing terms, the marks being used in overlapping markets (entertainment and performances), and because consumers may assume a common commercial source. Maren Wade then filed a lawsuit in California against Taylor Swift and her affiliated companies, arguing that Taylor Swfit’s branding is confusingly similar in structure, wording, and overall commercial impression to her registered mark. She is also drawing on the USPTO’s refusal of Taylor Swift’s application to support her argument of a likelihood of confusion. A judgment has not yet been reached in this case, but it serves as an important reminder of the importance of satisfying the essential elements required for IP registration. 2. Australia: Katy Perry v. Katie Perry In
July 27, 2026
Vietnam’s new E-Commerce Law, which took effect on 1 July 2026 along with its implementing Decree No. 248/2026/ND-CP (Decree 248), marks a significant development in the country’s approach to online intellectual property (IP) enforcement, reflecting a clear shift from a reactive model of intermediary liability to one that expects platforms to play a more active role in preventing infringement. From notice-and-takedown to platform responsibility The most significant change introduced by the E-Commerce Law is the transformation of the legal role of e-commerce platforms. The existing safe harbor provisions under the IP Law and the copyright notice-and-takedown regime established by Decree 17/2023/ND-CP (Decree 17) largely required intermediaries to act only after receiving notice of infringement. Once infringing content had been removed, the platform’s legal obligation was generally considered fulfilled. The new legislation adopts a fundamentally different approach. Article 17 of the E-Commerce Law requires intermediary platforms to screen information relating to goods and services before publication in order to prevent listings involving counterfeit or IP-infringing goods, and goods of unknown origin. Rather than relying exclusively on complaints from rights holders, platforms are now expected to implement preventive measures before infringing listings become publicly available. Decree 248 further requires platforms to update keyword filters based on recommendations issued by competent authorities. These filtering mechanisms are intended to prevent prohibited listings from appearing on the platform and represent a further move away from a purely complaint-driven enforcement model. The legislation also introduces Vietnam’s first statutory stay-down obligation. Under the E-Commerce Law and Decree 248, major digital platforms must maintain automated systems capable of reviewing, warning against, and removing unlawful listings while also implementing measures to prevent repeat violations, defined under Decree 248 as conduct that has previously been identified and handled by the platform, but continues to recur. This obligation addresses one
July 27, 2026
Tilleke & Gibbins’ intellectual property specialists have authored the Thailand chapter of Trade Secrets 2026 from Chambers and Partners. This global guide examines the legal frameworks governing trade secret protection, enforcement, and litigation across jurisdictions worldwide. The Thailand chapter provides a comprehensive overview of the country’s legal regime for protecting confidential business information, covering the legal framework, trade secret misappropriation, litigation procedures, remedies, and dispute resolution. Some topics covered include: Protectable trade secrets Reasonable measures to maintain secrecy Employee confidentiality Trade secret licensing Civil and criminal remedies Litigation procedures and injunctions Damages and other remedies Mediation and arbitration The guide also examines practical issues relating to safeguarding trade secrets, defending against allegations of misappropriation, and managing trade secret disputes in Thailand. Chambers and Partners’ Global Practice Guides provide in-house counsel with authoritative commentary on practical legal issues affecting business, enabling readers to compare legislation and procedures across multiple jurisdictions. The Thailand chapter of Trade Secrets 2026 is available as a PDF through the button below. The full guide can be accessed for free on the Chambers and Partners website.
July 27, 2026
In March 2025, Thailand’s Central Intellectual Property and International Trade Court (IP&IT Court) issued a landmark judgment in favor of Luckin Coffee, China’s leading retail coffee chain. The judgment marked a significant turnaround following earlier trademark litigation involving Luckin Coffee from 2021 to 2023 that had generated widespread public attention and raised questions about the protection available to legitimate foreign brand owners in Thailand. In a significant subsequent development, Thailand’s Court of Appeal for Specialized Cases has now affirmed the IP&IT Court’s judgment in its entirety. The appellate decision brings clarity to one of Thailand’s most closely watched trademark disputes. Significantly, this is the first case in Thailand to formally recognize the trademark squatting principle. The Court of Appeal confirmed that Luckin Coffee has a better right to the disputed mark and ordered cancellation of the defendants’ trademark registration—a key application of the “better right” doctrine. The court also upheld the substantial damages awarded at first instance, providing important guidance on assessing harm from systematic trademark squatting. Award-Winning Judgment Affirmed in Its Entirety The significance of the first-instance judgment extended beyond the outcome for Luckin Coffee. The IP&IT Court judgment was subsequently recognized in the IP&IT Court’s Distinguished Judgment Awards in 2025, reflecting the complexity, novelty, and legal significance of the issues considered in the case. The defendants nevertheless appealed the judgment, challenging several key aspects of the IP&IT Court’s decision. Luckin Coffee continued to entrust Tilleke & Gibbins as their sole attorney to pursue the case at the appellate level. After considering the defendants’ appeal and Luckin Coffee’s submissions in response, the Court of Appeal affirmed the first-instance judgment in its entirety. The judgment was announced on July 8, 2026. Better Right to the Marks The Court of Appeal confirmed Luckin Coffee’s superior rights. The orders include cancellation