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

November 27, 2012

Supreme Court Considers Issues Surrounding Concurrent Use Registrations

World Trademark Review

This article first appeared on WTR Daily, part of World Trademark Review, in September 2012. For further information, please go to www.worldtrademarkreview.com.

Trademark owners, even when they are acting in good faith, may face difficulties in obtaining a trademark registration if the mark they seek to register is confusingly similar, or identical, to an earlier registration. Section 27 of the Thai Trademark Act provides the opportunity to overcome this objection by allowing “concurrent use” registrations if the trademark at issue has been honestly and concurrently used by the applicant or if there are other special circumstances.

In particular, Paragraph 1 of Section 27 provides as follows:

“When there is an application for registration of a trademark that is identical, or similar, to one already registered by a different owner in accordance with Section 13, or when there are applications for registration of trademarks that are identical or similar under Section 20 in respect of goods of the same or different classes, but, in the registrar’s opinion, of the same character, and the registrar deems that the trademarks have been honestly and concurrently used by each proprietor, or there are other special circumstances which are deemed proper by the registrar to allow registration, the registrar may permit the registration of the same trademark or of nearly identical trademarks by more than one proprietor, subject to conditions and limitations as to the method and place of use, or other conditions and limitations as the registrar may deem proper to impose. The registrar shall, without delay, notify in writing the applicants or the proprietors of the trademarks who have been granted registration of his decision and reasons therefor.”

The recent decision of the Supreme Court in Anna Sui Corp v Department of Intellectual Property (11439/2554) is a good example of the issues involved in concurrent use registrations in Thailand. In this case, plaintiff Anna Sui Corp filed three applications for the registration of the word mark ANNA SUI for goods in Class 25 of the Nice Classification. After reviewing the applications, the trademark registrar decided that the mark ANNA SUI in Class 25 was confusingly similar to the earlier registered mark ANNA IS, which also covered goods in Class 25.

The plaintiff filed an appeal with the Board of Trademarks, but the registrar’s decision was upheld. The plaintiff then filed a complaint with the Central Intellectual Property and International Trade (IP&IT) Court, claiming that the ANNA SUI mark had been widely used for a long period of time and was well known. In addition, the plaintiff stated that it had applied for registration of the mark in good faith. The IP&IT Court agreed with the registrar and the Board of Trademarks, and confirmed that the mark ANNA SUI was not registrable.

Anna Sui appealed to the Supreme Court. The court first found that the trademark applications for ANNA SUI were confusingly similar to the earlier registered trademark ANNA IS because the marks contained the substantial element “Anna” and covered the same type of goods.

Nevertheless, after considering the evidence submitted by the plaintiff, the Supreme Court noted that the mark ANNA SUI had been registered in the United States since 1983, and that the products sold under the ANNA SUI mark had been widely distributed and promoted in many countries, including Thailand, over a long period of time. In addition, Anna Sui is the name of an American fashion designer. The Supreme Court was thus convinced that the mark ANNA SUI had been created without copying the marks of any other parties, and that it had been used in good faith before the earlier trademark had been filed in Thailand.

The Supreme Court thus concluded that the three trademark applications for ANNA SUI were registrable; however, registration would be subject to any conditions and limitations that the registrar might deem proper to impose.

The Supreme Court’s decision shows that, in order to obtain registration of a mark under Section 27, it is necessary to prove the good faith of the applicant. Convincing evidence of the applicant’s good faith includes evidence of use of the mark in Thailand and overseas, as well as evidence of registration of the mark in other countries. In addition, evidence of the origin of the mark, as shown in this case, could be very helpful to demonstrate the good faith of the applicant.

RELATED INSIGHTS​ 

August 13, 2026
Modern agricultural machinery is no longer purely mechanical but instead technology dependent. Modern tractors, harvesters, and other farm equipment increasingly incorporate embedded software, electronic control units, sensors, and digital diagnostic systems. While such technologies enhance efficiency, productivity, and precision farming, they also affect the manner of equipment repair and maintenance. As a result, farmers and independent repair providers may have little practical choice but to rely on authorized dealers, even for routine maintenance and repairs. Section 36 of Thailand’s Patent Act reflects the principle that the authorized sale of a patented invention usually exhausts the exclusive right of the patent owner over the specific product. This means that upon legal sale of the patented product, it can typically be used or resold without further authorization from the patent holder. This principle is relatively straightforward when applied to traditional mechanical equipment. Ownership of a machine ordinarily carries with it the practical ability to diagnose faults, replace worn parts, and restore the equipment to working order. Modern agricultural machinery, however, increasingly depends on embedded software, proprietary diagnostic systems, firmware updates, and other digital resources that may remain under the control of the manufacturer or patent holder. This tension lies within the “right to repair” debate. In the United States, on July 8, 2026, the Federal Trade Commission and five states announced a settlement with Deere & Company resolving allegations that Deere had unlawfully restricted farmers’ and independent repair providers’ ability to repair their equipment. Under the terms of the settlement, for the next ten years, Deere must provide repair resources, including software capabilities, on terms equivalent to those provided to authorized dealers. The Deere settlement highlights that the nature of ownership is changing, but legal concepts have not kept pace. Traditional patent-law concepts, including patent exhaustion, were developed with physical products
August 11, 2026
Cambodia’s Ministry of Justice has launched a new platform on its official website to publish notices of forced sales issued by each municipal and provincial court of first instance. The platform’s stated purpose is to inform the public and facilitate greater participation in forced-sale auctions conducted in connection with court-ordered enforcement proceedings. How the Platform Works The platform publishes forced-sale notices from courts of first instance across Cambodia’s municipalities and provinces and includes a link where the public can view properties currently subject to forced sale. To participate in a forced-sale auction, individuals can download Khmer-language bidding application forms through links provided on the platform. The form typically requires the applicant’s name, sex, year of birth, identity card number and issue date, and address, together with details identifying the immovable property (including its ownership certificate number), the relevant enforcement case number and date, and the reference to the public auction or tender announcement issued by the court. Completed application forms must be submitted directly to the specific municipal or provincial court that issued the forced sale. For further inquiries about a particular forced sale, interested parties should likewise contact the relevant municipal or provincial court. Forced Sale of Immovable Property in Cambodia The publication of these notices relates to the forced sale procedure for immovable property under Cambodia’s Code of Civil Procedure (CPC). Unlike property seizure by a court, a forced sale is a compulsory execution proceeding—a subsequent enforcement step that arises only after an underlying dispute has been adjudicated and a debtor fails to pay the debt or outstanding amount due under a final and binding judgment or other enforceable title of execution. For the purposes of this procedure, the term “immovable property” under the CPC refers to land, registered buildings, jointly held shares of such property, registered
August 10, 2026
Thailand has finalized its social media KYC (“know your customer”) rules under Notification of the Electronic Transactions Commission on Measures to Prevent Technological Crimes for Social Media Service Providers (No. 2), which was published in the Government Gazette on May 5, 2026, and will take effect on November 1, 2026. While an early draft of the notification proposed requiring social media platforms to arrange identification of every user account, the final notification is significantly more targeted, focusing on paid online advertising and advertiser identity verification. Though the regulatory initiative primarily aims to combat online fraud and technology-related crimes, it also has important consequences for intellectual property enforcement, because the verified platform records that will be generated under the new requirements can help IP rights holders to identify anonymous online infringers. Key Regulatory Mandates The notification requires social media service providers to verify the identity of advertisers before their paid advertisements are published and disseminated in Thailand through social media, regardless of whether the advertising fees come from the advertisers or third parties. Verification of an advertiser is valid for one year, after which verification would have to be performed again before the platform could publish additional paid advertisements from the advertiser. Permitted verification methods are specified under the notification. A platform may verify an advertiser by checking identity evidence and confirming the connection between the advertiser and that identity evidence, with the notification giving facial comparison against certain government-issued identity documents as an example. Alternatively, platforms may verify advertisers through a digital identity verification and authentication system with an identity-proofing assurance level not lower than the level prescribed by Thailand’s Electronic Transactions Commission. The notification further requires platforms to retain only the advertiser’s information necessary to identify the advertiser, beginning from the start of the advertising activity and for
August 6, 2026
Introduction: A Trademark Paradox in Sustainable Packaging Walk into any Thai supermarket, and the label-free water bottle is no longer a novelty. Thailand’s packaging market, valued at approximately USD 15.68 billion in 2025, is shifting toward minimalist, plastic-light designs as ESG pressures reshape how brands present their products. The country generated roughly 5.68 million tons of plastic waste in 2021, with a recycling rate of only 19 percent, and regulators are now considering rules that would allow label-free bottled water relying on embossing, laser printing, or QR codes instead of wrap-around labels. As packaging itself becomes the brand identifier, a paradox emerges: designs built to say the least often struggle hardest for protection under Thai intellectual property law. The Trademark Barrier: When Shape Is Not Enough Section 7, paragraph 2(10) of the Thai Trademark Act deems a shape distinctive only if it is not the natural form of the goods, is not necessary to achieve a technical result, and does not add value to the goods. The Department of Intellectual Property’s 2022 examination guidelines apply this test conservatively, as the following examples illustrate. A plain water bottle relying on subtle contours to signal its brand is typically read as just another bottle, not a source identifier. Acquired distinctiveness offers a theoretical escape route, but it demands extensive evidence of sales, advertising, and consumer recognition—an especially heavy burden for new entrants whose minimalist packaging has not yet achieved market prominence. The result is a structural bias against precisely the design innovation that sustainability goals are meant to encourage. Design Patents: A Partial, Imperfect Substitute Design patent protection, covering a product’s shape, configuration, or ornamentation, appears to offer an alternative route. In practice, it is constrained by the same forces driving the minimalist trend. Because many brands converge on similar solutions—clear