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 21, 2025

Thai Court Finds Acquired Trademark Distinctiveness through Use in Rare Decision

World Trademark Review

Distinctiveness is a fundamental requirement for a trademark’s registration and protection under Thai law. The Thai courts typically assess distinctiveness based on a mark’s inherent characteristics rather than its use, as proving acquired distinctiveness through use requires substantial evidence, including the duration of use, extent of distribution and promotional efforts.

However, the Intellectual Property and International Trade Court (IP & IT Court) has recently ruled that the figurative mark WEPLAY had acquired distinctiveness through use – an uncommon ruling under Thai trademark law. Subsequently, the Court of Appeal for Specialised Cases affirmed the mark’s inherent distinctiveness based on a holistic assessment of its components.

This article discusses the criteria for proving both inherent and acquired distinctiveness, offering examples from both courts to provide valuable insights into case preparation and understanding of how the courts assess distinctiveness.

Background

In 2017 the plaintiff filed a trademark application for the mark depicted below for goods in Class 28, including toy building blocks:

The registrar rejected the application on the grounds of non-distinctiveness under Section 7 of the Trademark Act. The plaintiff appealed to the Board of Trademarks, which considered that, when the term ‘weplay’ is used for goods in Class 28, it is descriptive of the nature of the goods applied for as “playthings”. Therefore, ‘weplay’ was deemed nondistinctive under Section 7, Paragraph 2(2) of the Trademark Act.

IP & IT Court decision

In 2024 the IP & IT Court ruled that the term ‘weplay’ is not a coined or invented word; instead, it is a combination of ‘we’ and ‘play’, conveying the meaning of ‘we play’. When the term is used for goods in Class 28, it describes the nature of the goods as “playthings”. Consequently, the mark was deemed non-distinctive.

However, the court considered the evidence presented by the plaintiff, which showed that the latter had been selling the product in Thailand for over 10 years. This evidence, including invoices, online and print catalogue advertisements, as well as other documentation, confirmed the continuous use of the trademark alongside widespread product distribution and advertising in Thailand for over 10 years. This evidence conclusively established that goods bearing the mark had been extensively sold, distributed and advertised; therefore, the mark had acquired distinctiveness through continuous use under Section 7, Paragraph 3 of the Act. The IP & IT Court, as the court of first instance, thus adjudicated that the mark was registrable.

Both parties appealed.

Appeal decision

On 26 February 2025 the Court of Appeal for Specialised Cases held that the mark at issue consisted of two key elements:

  1. the word ‘weplay’; and
  2. a rounded-shaped device with an unusual combination of colours.

The term ‘weplay’ was found to be suggestive rather than descriptive, requiring a consumer’s interpretation to associate it with the goods. When combined with the graphic element, the mark as a whole was distinctive, enabling consumers to identify and

differentiate the goods. Accordingly, the trademark meets the distinctiveness criteria under Section 7, Paragraph 1, and Section 7, Paragraph 2(8) of the act.

The appellate court thus concluded that the mark was inherently distinctive.

Comment

The case highlights the adoption by the Thai courts of a holistic approach, contributing to a more dynamic framework for assessing trademark distinctiveness. It also shows a growing tendency to consider acquired distinctiveness through use, making it a more flexible factor in trademark litigation.

 

This article first appeared in WTR Daily, part of World Trademark Review, in June 2025. For further information, please go to www.worldtrademarkreview.com.

RELATED INSIGHTS​ 

June 10, 2026
For multinational franchisors operating in Thailand, a key risk after franchise termination is that former outlets may continue operating in ways that could easily mislead consumers into believing they remain within the authorized network. To justify such operations, former franchisees often argue that the termination was invalid or ineffective. As a result, these cases are often treated as contractual disputes, making it difficult for franchisors to obtain injunctive relief before a final judgment confirms that the termination was lawful. Franchisors face significant commercial and reputational harm during lengthy proceedings, including consumer confusion, disruption to franchise restructuring, and damage to brand reputation and customer trust. In an encouraging development, the Thai court in a 2025 case responded to the problem of unauthorized post-termination franchise operations by granting interim relief, recognizing broader brand and consumer harm, and awarding substantial damages, highlighting a successful litigation strategy of framing the dispute not merely as a contractual termination issue but as trademark infringement causing ongoing commercial injury. The Subway Case From December 2024 to mid-2025, an unauthorized “Subway®” franchise operation in Thailand attracted substantial public and media attention. Reports and online discussions about unauthorized Subway® stores circulated widely after complaints arose about food quality and customer experience at certain outlets that were allegedly operating after their franchise rights had expired. Because these stores continued to use Subway® trademarks, trade dress, and overall commercial appearance, many consumers were unable to distinguish them from authorized operations, resulting in reputational risks and customer confusion that affected the franchisor’s brand and franchise system in Thailand. Subway treated this matter with the utmost seriousness and moved promptly to protect its brand, franchise system, and customers. It filed a civil action with the IP&IT Court seeking a permanent injunction and damages. During the proceedings, the court granted a preliminary injunction
May 22, 2026
Intellectual property specialists from Tilleke & Gibbins in Vietnam have contributed an updated Intellectual Property Transactions in Vietnam overview for Thomson Reuters Practical Law, an online publication that provides comprehensive legal guides for jurisdictions worldwide. The Vietnam overview was authored by Linh Thi Mai Nguyen, Thanh Phuong Vu, Chi Lan Dang, Son Thai Hoang, and Duc Anh Tran. The chapter provides a high-level examination of key aspects of IP transactions law in Vietnam, including IP assignment and licensing, research and development collaborations, IP in mergers and acquisitions (M&A), lending and taking security over intellectual property rights, settlement agreements, employee- and consultant-created IP, competition law, taxation, and non-tariff trade barriers. Key topics covered in the chapter include: IP assignment: Basis and formalities for assignments of patents, utility models, trade marks, copyright, design rights, trade secrets, confidential information, and domain names in Vietnam. IP licensing: Scope, formalities, and recordal requirements for licensing patents, trade marks, copyright, design rights, and trade secrets. Research and development collaborations: Treatment of improvements, derivatives, and joint ownership of IP, including exploitation and enforcement issues. IP aspects of M&A and security: Due diligence, warranties, transfer formalities, and taking security over intellectual property rights. Practical Law, a legal reference resource from Thomson Reuters, publishes a range of guides for hundreds of jurisdictions and practice areas. The Intellectual Property Transactions Global Guide is a valuable resource for legal practitioners seeking comparative insight into transactional IP issues across multiple jurisdictions. To view the latest version of the Intellectual Property Transactions in Vietnam overview, please visit the Practical Law website and enroll in the free Practical Law trial to gain full access.
May 13, 2026
Laos has significantly broadened its industrial property administrative review framework, most notably by extending it to cover copyright and related rights for the first time. Decision No. 0306/IC on the Administrative Resolution of Disputes Concerning Industrial Property Registration, New Plant Variety Registration, and Copyright and Related Rights Recordation took effect on April 24, 2026, replacing the previous rules from 2023, which had covered only industrial property and new plant variety matters. Decision No. 0306/IC governs how Laos’ Department of Intellectual Property (DIP) and provincial offices handle formal challenges to industrial property registrations and applications. The proceedings covered include oppositions to pending applications, appeals of refused applications, requests for cancellation of existing registrations, and—newly—disputes concerning the recordation and interpretation of copyright and related rights. These administrative proceedings within the DIP are heard by a government-appointed Administrative Dispute Resolution Committee, which functions similarly to the opposition and review boards found in other jurisdictions. Key Changes Decision No. 0306/IC covers four categories of administrative proceedings: Oppositions: Third-party challenges to a pending industrial property application before it is granted. Refusal appeals: Challenges to the DIP’s decision to refuse their application. Cancellation or deletion requests: Applications to invalidate an existing registered right on the grounds that it should not have been granted. Copyright and related rights disputes: Challenges to or interpretations of copyright and related rights recordations, including determinations of whether a work qualifies for copyright protection under Lao law. The most significant development is the committee’s new jurisdiction over copyright matters. The committee is now empowered to resolve disputes concerning copyright and related rights recordation—this includes the authority to determine whether a work qualifies for copyright protection and to interpret the scope of an existing recordation. Parties who believe a competitor has improperly recorded copyright over a work, or who wish to contest
April 30, 2026
Vietnam’s Decree No. 134/2026/ND‑CP, which took effect on 9 April 2026, plays an important role in detailing and implementing Vietnam’s Intellectual Property (IP) Law in the context of rapid digital transformation and the growing application of artificial intelligence (AI). The new decree provides comprehensive guidance on the application of copyright and related‑rights regulations, addressing key issues such as authorship, ownership, statutory exceptions and limitations, registration procedures, and enforcement mechanisms. Through these measures, Decree 134 seeks to achieve an appropriate balance between safeguarding the legitimate interests of rightsholders and fostering innovation, research, and technological advancement, thereby strengthening the state’s framework for the effective management, protection, and exploitation of intellectual property in the digital and AI‑driven environment. Some notable aspects of Decree 134 are discussed below. Copyright for AI-Created Works Decree 134 provides important guidance on the determination of copyright and related rights in works created with the assistance of AI. Article 5a reaffirms the principle that human creativity remains central to copyright protection, clarifying that copyright or related rights arise only where a human makes a substantial and decisive intellectual contribution, exercises effective control over the creative outcome, and assumes responsibility for the content and its legality. At the same time, the provision confirms that AI is regarded solely as a technological tool rather than a rights‑holding subject, thus ensuring consistency with the fundamental concepts of authorship and ownership under the IP Law. By introducing requirements on transparency, proof of human contribution, and compliance with AI‑specific labelling and technical marking obligations, Decree 134 establishes a clear and enforceable legal framework for the responsible use of AI in creative activities. Lawful Use of Copyrighted Texts and Data Article 37a of Decree 134 sets out the specific conditions under which copyrighted texts and data may be lawfully used for scientific research, experimentation,