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

August 29, 2018

A Novel Approach to Evaluating the Similarity of Trademarks in Thailand

Informed Counsel

The Court of Appeal for Specialized Cases (Specialized Appeal Court) was established in October 2016 to review all appeals against the judgments of the five specialized first instance courts in Thailand, including the Central Intellectual Property and International Trade Court (IP&IT Court). Most, if not all, judges of the Specialized Appeal Court, who are responsible for reviewing IP-related appeals, have had experience working as judges at the IP&IT Court and can be expected to be well versed in IP law and practices. They are capable of providing fair, practical, and sometimes novel judgments, as illustrated in a recent case involving how similarity of trademarks should be evaluated.

Opposition of Similar Trademarks

In June 2009, a Thai company filed an application for registration of the trademark MOBIL-AG & Device, Application No. 734360, for use with goods in Class 1, namely chemical fertilizers. This application was subsequently published in a trade gazette in September 2012. As the applicant’s mark is closely similar to the well-known registered trademarks of Exxon Mobil Corporation (“ExxonMobil”), ExxonMobil filed an opposition petition against this application with the Trademark Office in December 2012 under Section 13 of the Trademark Act, among others. The opposition was based on several prior registered trademarks of ExxonMobil, particularly:

  1. Trademark Registration No. Kor. 63198, registered for use with goods in Class 4, including lubricant oil, kerosene, gasoline, diesel; and
  2. Trademark Registration No. Kor. 99756, registered for use with goods in Class 5, including antiseptics in plants and pesticides.

The marks are shown in the table below.

Even though the Trademark Office Registrar found that the applicant’s trademark and ExxonMobil’s trademark MOBIL, Reg. No. Kor. 63198, are similar, the registrar unfortunately dismissed the opposition because it found that both marks are for use with goods in different classes and that the lists of goods were not of the same character.     

ExxonMobil then appealed the decision to the Board of Trademarks, which dismissed the appeal based on the same reasons. ExxonMobil therefore further appealed the decision by filing a lawsuit with the IP&IT Court.

IP&IT Court’s Judgment

In January 2017, after reviewing the evidence and statements of witnesses produced by both parties, the IP&IT Court rendered judgment dismissing the lawsuit. The IP&IT Court found that (1) the appearances and pronunciations of both parties’ marks were different; (2) the classifications of the goods of both parties’ marks were different; and (3) the lists of goods of both parties’ marks were not related. The court therefore ruled that the applicant’s mark was not prohibited from registration under Section 13 of the Trademark Act. Disappointed with the judgment, ExxonMobil instructed Tilleke & Gibbins to appeal the IP&IT Court judgment to the Specialized Appeal Court.

Specialized Appeal Court’s Judgment   

On October 11, 2017, the Specialized Appeal Court rendered judgment finding that the applicant’s Trademark Application No. 734360 is similar enough to ExxonMobil’s Trademark Registration Nos. Kor. 99756 and Kor. 63198 so as to cause confusion among the public.

Even though both parties’ marks are for use with goods of different classes, the lists of goods were found to have the same character. Accordingly, the applicant’s Trademark Application No. 734360 is not registrable under Section 13 of the Trademark Act. The Specialized Appeal Court therefore reversed the judgment of the IP&IT Court and ordered that the prior decisions of the Trademark Registrar and the Board of Trademarks be withdrawn.

It is interesting to note that the Specialized Appeal Court not only addressed the similarity of both parties’ marks, element by element, but also discussed the origin of the word “MOBIL.” Particularly, it stated that this word is not Thai, but foreign. If this foreign word has not been used until it has a comparative meaning in Thai, there would be limitations for general consumers to recognize and remember it. Most importantly, “MOBIL” does not have a meaning in the dictionary and ExxonMobil’s witness confirmed that the word has been used as a trademark since 1906 and has been registered worldwide. It can therefore be concluded that the applicant used the same word as that of ExxonMobil as a part of its trademark.

Moreover, in the appeal, in addition to the similarity issue, ExxonMobil argued that its registered trademarks are well known, and the applicant, who was well aware of ExxonMobil’s well-known mark, applied for registration of a similar mark in bad faith. Even though the Specialized Appeal Court did not discuss or rule on the well-known and bad faith issues, it is obvious that these arguments were taken into consideration when evaluating the similarity between both parties’ marks. 

The ruling has positive implications for future similar cases in Thailand as it implies that, in deciding whether an applicant’s trademark is prohibited from registration under Section 13 of the Trademark Act, the Specialized Appeal Court will take into consideration the fame of the prior registered trademark and the bad faith of the applicant. This approach should help in deterring any bad faith applicant from imitating other parties’ well-known trademarks or applying for registration of such imitation trademarks.

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