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​ 

December 5, 2025
One morning, a California-based company mapping its Southeast Asia rollout opened an unexpected cease-and-desist letter from a Vietnamese IP firm. To the company’s surprise, the letter asserted that a local client already owned the company’s brand in Vietnam and threatened legal action. This is not an isolated incident. In another recent matter in the sports industry, a squatter demanded at least USD 48,000 from our client to “resolve” a similar conflict. For brands entering Vietnam or expanding distribution there, these tactics can create acute risk at precisely the point at which market momentum is building. Vietnam’s rapid economic growth and deepening integration into global trade have made it an increasingly attractive destination for multinational brands. Those same dynamics have intensified a longstanding issue: trademark squatting. Vietnam has modernized its IP framework over the past decade, but its strict first-to-file trademark system continues to incentivize opportunistic filings by parties with no legitimate interest in a mark. As more foreign brands build their reputation abroad before turning to Vietnam, squatters remain alert to timing gaps and enforcement frictions. The First-to-File System: Advantages and Vulnerabilities Vietnam adheres closely to the first-to-file principle under its Law on Intellectual Property. In practice, exclusive trademark rights belong to whoever submits the earliest valid application to the Vietnam Intellectual Property Office, regardless of prior use in Vietnam. This approach offers administrative clarity and reduces evidentiary burdens compared to use-based jurisdictions. Yet it also creates fertile conditions for squatting. Bad-faith actors regularly monitor foreign markets, identify brands gaining traction, and move quickly to register those marks domestically, often long before the genuine owner enters the market or prioritizes local filings. By the time the true brand seeks protection, the squatter’s application (or registration) stands as a legal obstacle, pushing businesses toward costly oppositions, cancellations, or uncomfortable negotiations
November 26, 2025
On November 21, 2025, Myanmar’s Ministry of Commerce (MOC) issued Notification No. 103/2025 promulgating the Geographical Indication Rules (GI Rules), establishing a comprehensive framework for the registration and administration of geographical indications (GI), which are primarily governed by the Trademark Law of 2019. On the same day, the MOC released Notification No. 104/2025 specifying the required forms for GI-related matters. The GI Rules establish a comprehensive set of procedures for the entire GI application process, including filing applications, oppositions, cancellations, and invalidations, and appointing a local representative for GI-related matters. Under the Trademark Law and the GI Rules, domestic and foreign legal entities (organizations) that formally represent a defined group of stakeholders (such as producers or manufacturers of natural products or resources, agricultural products, handicrafts, or industrial products) and other competent authorities from government departments are eligible to apply for GI registration with the Intellectual Property Department (IPD) in Myanmar. Application A GI application can be submitted in either English or Myanmar language electronically, in person, or via post. Foreign applicants seeking to register a GI in Myanmar are required to submit a copy of the registration certificate from their country of origin with the GI application. This certificate must explicitly state the GI name of the protected product. Notably, foreign applicants are mandated to appoint a local representative in Myanmar to act on their behalf for GI-related matters with the IPD and appeal-related matters with the IP Agency. The form for appointing the local representative must be duly notarized in the applicant’s home country to ensure its legal validity and acceptance in accordance with the GI Rules. Application for Use of GI Logo Pursuant to the GI Rules, any interested individual, local or foreign, may submit an application to the IPD for authorization to use the GI logo,
November 21, 2025
Tilleke & Gibbins has contributed the Thailand chapter to Asia IP’s ASEAN Guide to IP Protection 2025, an annual reference covering key developments and practical considerations for intellectual property systems across Southeast Asia. The chapter offers an overview of Thailand’s current legal framework for the protection of trademarks, patents, industrial designs, and copyrights. It summarizes registration requirements, recent regulatory updates, and procedural considerations relevant to rights holders and practitioners. The chapter offers actionable insights for rights holders at every stage of the IP lifecycle and addresses practical strategies for managing portfolios, anticipating enforcement challenges, and maximizing the value of IP assets. The authors also highlight recent trends and developments in Thai IP law, ensuring that readers are equipped with the latest knowledge to inform their decisions. The complete Thailand chapter can be downloaded through the button below, and the chapter is also available on the Asia IP website.
November 13, 2025
Tilleke & Gibbins has contributed the Thailand chapter to Franchise 2026, part of the International Comparative Legal Guides (ICLG) series published by Global Legal Group. This annual guide offers comparative analysis of franchise laws and regulations across jurisdictions worldwide, providing practical insights for businesses and legal practitioners operating in the global franchise sector. Each country chapter in the 12th edition follows a Q&A format covering key aspects of franchise law and operations, including: Relevant legislation and rules governing franchise transactions Business organization options for franchised operations Competition law considerations Protection of intellectual property and brands Liability issues and risk mitigation Governing law and dispute resolution Real estate matters Online trading regulations Termination requirements Joint employer risks and vicarious liability Currency controls and taxation Commercial agency considerations Good faith obligations and fair dealing requirements Ongoing relationship management Franchise renewal processes Franchise migration procedures Sustainability commitments Electronic signatures and document retention Current developments in the franchise sector The Thailand chapter, authored by Alan Adcock and Kasama Sriwatanakul, provides an in-depth overview of the legal landscape for franchising and franchising-related activities in Thailand. The complete Thailand chapter is available as a PDF below. The Thailand chapter—and the full Franchise 2026 guide—are also freely available on the ICLG website.