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

May 27, 2014

Well-Known Marks in Vietnam: Legal Framework and Practical Obstacles

Informed Counsel

In 1992, the National Office of Intellectual Property of Vietnam (NOIP) refused a trademark application due to its confusing similarity to the unregistered, but well-known, McDONALD’S trademark of the U.S. fast-food chain. This refusal was based merely on the reputation of the mark, as McDonald’s—at the time—had not yet used or shown any intention to use such mark in Vietnam. This was the very first case involving a “well-known mark” in Vietnam.

Legal Framework

At the time of the McDonald’s case, the term “well-known mark” was not officially defined in any Vietnamese legal document. There existed only Decree 197-HDBT, dated December 14, 1982, of the Council of Ministers on Regulation of Trademarks, which provided: “signs that are identical or similar to marks that are previously registered in Vietnam or protected under international treaties to which Vietnam is a member for the same goods are not accepted as trademarks.”

Later, “well-known mark” was indirectly mentioned in Article 6.1e of Decree 63/CP, dated October 24, 1996, stating that, as one of the criteria for protection, a sign shall not be “identical or confusingly similar to others’ well-known trademarks (in accordance with Article 6 bis Paris Convention) or to others’ trademarks that are widely used and recognized.” Subsequently, Decree 06/2001/ND-CP, dated February 1, 2001, defined a well-known mark as “a mark that is used continuously for goods/services of good reputation, leading to the mark becoming widely known.”

Since the McDonald’s case, the legal framework for well-known marks has evolved from a Decree (a legal normative document issued by the Government) into the Intellectual Property Law issued in 2005 and amended in 2009. Under the prevailing IP Law, a well-known mark is defined in Article 4 as “a mark widely known by consumers throughout the Vietnamese territory,” with further criteria provided in Article 75.

Practical Obstacles

Despite the evolution of the legal framework, the number of marks recognized as well-known in Vietnam has not increased significantly (based on the estimates of some IP agents through their practice, as no official statistics are kept). Several factors may have contributed to this lack of growth.

First, the NOIP seems to be becoming stricter in recognizing well-known marks. Some marks that are well-known, even famous, worldwide are not recognized as well known by the NOIP, due to the lack of intensive and long-term use in Vietnam. In light of Item 2 of Article 75, the NOIP now requires intensive evidence showing the use of a mark within the territory of Vietnam for the purpose of recognizing a well-known mark. “Spill-over” effect, together with use of the mark in foreign and neighboring countries, is insufficient to prove the well-known status of the mark in Vietnam. The NOIP also imposes a higher requirement of formality on the evidence, such as requiring that the evidence be an original or certified copy and properly dated.

Second, as defined in Article 4, a mark is considered to be well known if it is known by consumers throughout the Vietnamese territory. By this definition, it seems that Vietnam requires that a well-known mark should be known by the public at large, not only by a pool of relevant and potential consumers.

Recently, some worldwide well-known marks have only been recognized by the NOIP as widely used, or as well known in Vietnam for certain goods and services, but not well known by the public at large. Obviously, no mark (not even the most well-known mark) will be used for all kinds of goods or services, especially marks for niche goods or professional services such as industrial machinery or financial services.

The practice that a mark may be recognized as well known for certain goods or services but not for others carries a potentially significant risk that such a mark may not be protected against the use of identical or confusingly similar marks for different goods or services. This runs contrary to the international practice, in which the scope of protection of a well-known mark often extends beyond the exact goods or services for which the well-known mark is used, and it is also inconsistent with Article 74.2(i) of Vietnam’s IP Law, which prevents the registration of a sign that is identical or confusingly similar to a well-known mark even for dissimilar goods or services, as follows: “if the use of such mark may affect the distinctiveness of the well-known mark or the mark registration is aimed at taking advantage of the reputation of the well-known mark.”

Along with the overly strict review process, inefficiencies in the system could be discouraging trademark owners from even attempting to get their well-known marks recognized in Vietnam. For example, the IP Law requires that a List of Well-Known Marks should be kept and maintained by the NOIP. In practice, however, there has never been such a list. Thus, the owner of a well-known mark must prove that its mark is well known in Vietnam over and over again in every single case. As the process of recognizing a well-known mark requires intensive evidence, it takes a significant amount of time and effort for the trademark owner to collect the evidence (which must be updated from time to time) and for the NOIP to study and assess the evidence for every single case.

Seeking Consistency

While it is up to Vietnam to decide how high the standards should be for determining well-known marks, the NOIP should be consistent in its rulings and adhere to the relevant international practices. As a first step, more transparency is required. Specifically, the NOIP and other competent authorities should publish their decisions on recognizing (and not recognizing) well-known marks. This may help to increase consistency in their rulings and build public awareness of well-known marks.

RELATED INSIGHTS​ 

March 6, 2026
Myanmar’s Trademark Law 2019 introduced a modern framework for the registration, enforcement, and protection of trademarks. However, due to the high volume of applications filed during the soft-opening period of the Intellectual Property Department (IPD), marks submitted from 2022 onward remain pending as the IPD works its way through the applications filed in 2021, which it has been publishing on a monthly basis since May 1, 2024. During this period, businesses should adopt proactive strategies to protect their brands, monitor conflicting marks, and ensure a smooth registration process. Practical Steps for Safeguarding Pending Marks While a pending application does not confer full trademark rights, brand owners can take several practical steps to strengthen their position: Monitor IPD publications. Businesses should regularly review the IPD’s monthly gazette to identify any identical or confusingly similar marks at an early stage and prepare timely oppositions in accordance with the Trademark Law’s provisions allowing “any interested party” to file an objection to a trademark application. Monitor market activity. Early detection of potential infringement enables swift action, such as cease-and-desist letters and opposition proceedings. Businesses should monitor competitors, distributors, and retailers for unauthorized use of their marks. Collect evidence of use. Maintaining evidence of use strengthens claims of distinctiveness and supports enforcement efforts. Businesses should keep records of commercial activities, distribution, brand promotion and development, marketing communications, product packaging and labeling, and sales demonstrating brand recognition in Myanmar and internationally, particularly in Southeast Asian markets. Although the Trademark Law 2019 establishes a first-to-file system, evidence of use provides considerable practical support for distinctiveness claims and enforcement actions. Pursue Interim Enforcement Options. A pending trademark application can be relied upon to oppose or refuse other marks on absolute and/or relative grounds of refusal. In addition, marks with established reputations may be protected under passing-off principles
February 27, 2026
On January 26, 2026, Vietnam’s Ministry of Finance issued Circular No. 06/2026/TT-BTC (Circular 06), amending and supplementing Circular No. 13/2015/TT-BTC, which provides guidance on dossiers and procedures for customs recordal and customs supervision in relation to intellectual property rights (IPR). Circular 06 has an effective date of March 1, 2026. Some notable points of Circular 06 include the following: Simplified Documentation for Customs Recordal Applications Circular 06 reduces some documentary requirements for IPR owners: A power of attorney is no longer required to be legalized. Applicants are no longer required to submit title or registration certificates if such documents are issued in digital form. In such cases, it is sufficient to declare comprehensive information on the relevant IPR, enabling customs authorities to verify the information through publicly accessible databases. In practice, this amendment is particularly beneficial for international trademark registrations designating Vietnam. IPR owners may no longer need to obtain a confirmation letter from the Intellectual Property Office of Vietnam regarding the validity of a trademark registration in Vietnam. Instead, they may rely on registration status information available from the World Intellectual Property Organization (WIPO) database, reflecting that the international registration has been granted protection in Vietnam. Clearer Mechanism for Ex Officio Suspension of Suspected Infringing Goods Although ex officio suspension has been referenced in earlier regulations, Circular 06 provides clearer guidance on the circumstances and procedures under which customs may proactively suspend customs procedures for consignments suspected of being counterfeit or pirated goods. Accordingly, customs authorities may initiate the suspension of clearance without waiting for a formal request from IPR owners. Enhanced Supervision of Imported/Exported Goods in E-Commerce Circular 06 also supplements provisions on the inspection of imported and exported goods transacted through e-commerce channels. Customs authorities may apply risk management measures to assess goods traded via e-commerce
February 26, 2026
Thailand is preparing to offer new tools for intellectual property enforcement as the Electronic Transactions Development Agency (ETDA) recently released for public consultation a draft notification requiring social media platforms to verify user identities and conduct know-your-customer (KYC) checks on advertisers. The draft Notification of the Electronic Transactions Commission on Measures to Prevent Technological Crimes for Social Media Service Providers, which is to be issued under the Emergency Decree on Measures for the Prevention and Suppression of Technological Crimes B.E. 2566 (2023), as amended in 2025, primarily aims to combat online fraud and technology-related crimes. However, its new obligations also provide IP owners with valuable tools to identify anonymous infringers. Key Regulatory Mandates The draft notification imposes several verification requirements on social media platforms operating in Thailand. These requirements also strengthen IP rights holders’ ability to identify anonymous infringers, as platforms must: Verify user identities through registered phone numbers and link all accounts to verifiable identities. Conduct KYC checks on advertisers, including individuals, companies, and any third-party payers. Perform heightened identity checks for high-risk or repeat offenders before publishing advertisements. Promptly remove content flagged by the Anti-Technology Crime Division and prescreen advertisements for prohibited or high-risk content. How IP Owners Can Use This Notification for Enforcement The phone number–based verification requirement enables IP owners to work more effectively with enforcement authorities in tracing individuals or entities responsible for infringing content. The comprehensive advertiser KYC obligations, including mandatory disclosure of third-party payment sources, create a clear audit trail even when bad actors attempt to obscure their identity through intermediaries or shell accounts. This traceability is essential for pursuing damages and dismantling organized counterfeit operations. The ETDA is now considering adjustments to the draft notification after receiving comments during the public consultation period, which ended on February 2, 2026. Following finalization
February 25, 2026
Tilleke & Gibbins has updated the Vietnam chapter in the newly released Licensing 2026 guide, published by Lexology Panoramic. The comparative guide provides companies and other interested readers with information on licensing law and practice in various countries around the world. Licensing 2026 provides detailed information on the following topics: Restrictions, laws and licensing arrangements Intellectual property issues: Paris Convention for the Protection of Industrial Property, contesting the validity of licensor’s IP rights, invalidity and expiry of IP rights, security interests, proceedings against third parties, sublicensing, jointly owned IP, first to file, scope of patent protection, trade secrets, copyright Software licensing: Perpetual licensing, legal requirements, user restrictions Royalties and payments, currency conversion, and taxes: Relevant legislation, restrictions, taxation of foreign licensors Competition law issues: Restrictions on trade, legal restrictions, and IP-related court rulings Indemnification, disclaimers, and damages: Prevalence and enforceability of indemnity provisions and contractual waivers of damages Termination: Right to terminate, impact of termination Bankruptcy: Impact of licensee or licensor bankruptcy Dispute resolution: Governing law, arbitration, enforceability, injunctive relief, contractual waivers The Vietnam chapter is available below as a PDF. Readers can gain 30 days of complementary access to the full Licensing 2026 guide and the rest of Lexology Panoramic’s varied offerings through this link.