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

July 11, 2022

Board of Trademarks Limits Parties Entitled to Request Non-use Cancellation

World Trademark Review

Background

In Thailand, as in other countries, there are many possible legal grounds for the cancellation of registered trademarks. The non-use ground, under Section 63 of the Trademark Act, has long been one of the most challenging grounds for petitioners to achieve.

Section 63 provides that any interested party can ask the Board of Trademarks to cancel a trademark registration if they can provide proof that, at the time of the application, the proprietor of the mark had no intent of using it for the designated goods. The party requesting cancellation must also show that, in the three years prior to the cancellation request, the mark had not been used in good faith for the goods for which it is registered. The proprietor of the trademark can defend itself against the cancellation request by proving that non-use was unintentional and was due to “exceptional circumstances in the trade”.

One of the reasons why non-use cancellation has been challenging in Thailand is that the Trademark Act does not prescribe the exact timeframe within which a mark must be used after it has been registered. Therefore, in some cases the Board of Trademarks found that the mere argument that the trademark owner had plans to use the mark in the future was suf cient to dismiss a non-use cancellation petition, even though the owner did not provide any proof to verify this.

Recent Board of Trademarks decision

In this case, a petitioner’s trademark application was rejected by the trademark registrar for being confusingly similar to a registered trademark. The petitioner then led a request for non-use cancellation against the cited trademark. At the same time, the petitioner decided to remove from its own trademark application the services that appeared to overlap with some of the goods connected to the registered trademark. This led the trademark registrar to revoke the citation and allow the trademark application to proceed to registration. However, once the application was no longer deemed to con ict with the cited mark, the Board of Trademarks ruled that the petitioner was no longer an ‘interested person’ eligible to le a non-use cancellation request against the cited trademark, and dismissed the non-use cancellation petition without considering its substance.

Comment

This decision seems to narrow the definition of ‘interested person’ under Section 63 to include only parties holding a pending trademark application that has been rejected for being similar to a cited mark. This somewhat contradicts a previous Supreme Court judgment (5333/2558) in a similar cancellation case under a different section of the Trademark Act that also uses the expression ‘interested person’. In that case, the court defined an ‘interested person’ as a party who has a “connecting point” with the mark that is the subject of the non-use cancellation request. The court’s language suggests that the “connecting point” is not necessarily limited to the rejection of a trademark application, but could also include other circumstances whereby use of one’s mark could somehow be affected by the existence of a prior registered mark.

Whether the Board of Trademarks’ decision in the present matter will be relied upon in future non-use cancellation proceedings remains to be seen. If it is, success rates for non-use cancellation requests will likely become even lower than they currently are.

RELATED INSIGHTS​ 

September 7, 2026
Indonesia’s Constitutional Court (Mahkamah Konstitusi) has reinstated a key provision limiting pharmaceutical patent protection, signaling a renewed commitment to balancing patent rights with public access to medicines. In its ruling to Case No. 255/PUU-XXIII/2025, the court partially granted a petition for judicial review of Law No. 65 of 2024, which had amended the country’s Patent Law, and ordered the restoration of a provision that had excluded certain pharmaceutical inventions from patentability. The decision took effect immediately upon its pronouncement at the court’s plenary session on August 28, 2026. Background The petition challenged the removal of article 4(f) from Law No. 13 of 2016 concerning Patents (Patent Law), as amended by Law No. 65 of 2024. Article 4(f) had excluded from patentability certain inventions relating to new uses of known substances. The petitioners argued that removing this provision would open the door to patent protection for second medical use inventions and facilitate patent evergreening—practices that can extend exclusivity periods, delay generic market entry, and reduce public access to affordable medicines. The petitioners included several patient advocacy and public-interest organizations: the Indonesian Dialysis Patients Community Association, the Indonesian Association of Drug Abuse Victims (PKNI), the Indonesian Pulmonary Hypertension Foundation (YHPI), the Rekat Peduli Indonesia Foundation, and the Indonesian Positive Women’s Association (IPPI), along with the Indonesia for Global Justice Association and four individual petitioners. The petitioners also challenged the constitutionality of the phrase “interested party” in article 70(1) of the Patent Law, arguing that it should be construed expressly to clarify who has standing to appeal a decision to grant a patent before the Board of Patent Appeal, and to allow a broader range of parties—such as patent holders, licensees, consumer organizations, prosecutors, aggrieved third parties, and others who may suffer direct or indirect harm from the grant of a patent—to
September 2, 2026
Thailand and China have a longstanding and significant trade relationship, which increasingly extends to e-commerce and digitally enabled supply chains. While these channels create new opportunities for businesses to reach consumers across borders, their growth also brings greater exposure to intellectual property (IP) infringement across jurisdictions and online platforms. Effective cooperation between the two countries’ enforcement authorities has therefore become increasingly important. To strengthen cooperation in this area, Thailand and China signed a memorandum of understanding (MOU) on IP enforcement in Beijing on July 20, 2026, during the Thai prime minister’s official visit to China. Officially titled “Memorandum of Understanding Between the State Administration for Market Regulation of the People’s Republic of China and the Ministry of Commerce of the Kingdom of Thailand on Cooperation in the Field of Intellectual Property Enforcement,” the MOU forms part of a broader bilateral agenda covering industrial and supply chains, participation by micro, small, and medium-sized enterprises (MSMEs), cooperation associated with the ASEAN–China Free Trade Area 3.0, and progress on the registration of Thai geographical indications in China. The MOU establishes a bilateral framework for cooperation and coordination in five broad areas: Strengthening dialogue in IP enforcement; Enhancing information sharing; Facilitating the enforcement of IP rights in cases arising in the parties’ domestic markets and on online platforms, in accordance with their respective domestic laws; Promoting cooperation in IP enforcement training and human resource development; and Undertaking other cooperation activities agreed upon by both sides. The Department of Intellectual Property (DIP) will serve as the principal coordinating agency for Thailand, while the Bureau of Law Enforcement and Inspection in China’s State Administration for Market Regulation (SAMR) will serve in that role for China. The framework is particularly relevant to the growth of e-commerce, as it covers infringement in the domestic markets and on
August 28, 2026
When considering a franchise, many people first think of a restaurant, retail chain, or service outlet. From a legal perspective, however, the foundation of every franchise lies in the right to use a brand, which is typically granted through a trademark license. Trademarks are often the most valuable assets in a franchise system. Through a trademark license, a franchisor authorizes a franchisee to use its trademarks, logos, and branding while maintaining control over how the brand is presented to customers. The Role of Trademarks in Franchise Businesses Under the Trademark Law 2019, a mark is defined as a sign that is capable of distinguishing the goods or services of one undertaking from those of others in the course of trade. This distinguishing function is particularly important in a franchise arrangement, where the franchisee’s use of the franchisor’s trademark allows consumers to recognize the source, quality, and reputation of the business. In this way, trademarks help preserve brand identity, strengthen market recognition, and protect the commercial value of the franchise system. Legal Foundation for Franchise Brand Protection Myanmar presently does not have a specific statutory framework governing franchise arrangements. As a result, franchise agreements are generally regulated under the broader applicable legal framework, including the Contract Act 1872, the Trademark Law 2019, the Competition Law 2015, the Consumer Protection Law 2019, and the relevant implementing rules and regulations. The licensing of trademarks within a franchise arrangement is particularly governed by the Trademark Law 2019. Franchisors should ensure that the trademarks intended to be licensed to franchisees in Myanmar are registered under the Trademark Law 2019 and that the relevant trademark license is properly recorded with the Intellectual Property Department (IPD). Trademark License Recordal Under the Trademark Law 2019, the owner of a registered trademark may grant a license to another
August 27, 2026
It is generally understood that patents are granted for new designs that have not been widely known or used in Thailand and not been disclosed anywhere prior to the date of the patent application. It is trite law that design law protects the distinctive appearance or products. Under Section 3 of the Thai Patent Act B.E. 2522, as amended by the Patent Act (No. 2) B.E. 2535 and the Patent Act (No. 3) B.E. 2542, a design is defined as “any form or composition of lines or colors that gives a product a special appearance and can serve as a pattern for an industrial or handicraft product.” This raises an important question. Can a patent be issued for a product design that contains text, numerals, trademarks, or symbols that do not fall under the definition of a design? This issue commonly arises when attempting to register packaging, labels, and graphical user interfaces (GUIs). Until a few years ago, applicants could file design applications with the Thai Patent Office for designs that contained such elements, provided that an appropriate disclaimer was included. This practice was generally accepted by Thai design examiners at that time, but the Patent Office has since implemented a change in its practice that could have a significant impact on applicants for design patents. Where design representations are submitted as line drawings or computer-aided design (CAD) drawings, the examiner may now issue an office action requiring their removal. This practice, however, appears to be applied inconsistently, as some examiners still exercise their own discretion in determining whether drawings containing these elements are acceptable. Below are examples of a GUI design, a CAD drawing design, and a photographic design representation that illustrates issues relating to the presence of nonallowable elements. GUI design For this GUI design, the submitted