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

February 26, 2016

Thailand’s DIP Revives Proposed Amendments to the Patent Act

Informed Counsel

Five years ago, Thailand’s Department of Intellectual Property (DIP) was in the process of considering proposed amendments to the Patent Act. These discussions were then put on hold, and the process has remained suspended until now.

On January 27, 2016, the DIP announced that it will be revisiting the proposed amendments with a focus on the following objectives:

  • Reduce the long periods of pendency for patent registration and improve the patentability and enforceability of petty patents.
  • Accept the Protocol Amending the Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS) regarding Thailand’s public health.
  • Facilitate Thailand’s accession to the Hague Agreement regarding design protection.

This article will discuss these amendments.

Patents

The patent amendments aim to address the long periods of pendency for patent registration, and to ensure that the time to grant a patent complies with the time frame set by the Licensing Facilitation Act, which is 55 months. The following amendments have been proposed.

Reduction of time to request substantive examination.  The time period to request substantive examination will be reduced from five years to three years from the publication date.

Post-grant opposition and specialized Board of Revocation/Invalidation.  Patent applications will be published twice. The first publication will be made after the formality examination is completed, following usual practice. The second publication will be made after the substantive examination is completed and the patent has been granted, and it will be open to patent invalidation. Therefore, the opposition period after the first publication will be eliminated and replaced by the invalidation action, which must be filed within a stipulated period of time (to be determined) from the granting date.

In addition, a specialized Board of Revocation/Invalidation will be established to consider patent invalidation. This board will be composed of at least three members but not more than five members. It must consist of the Examiner and a person qualified in law, and the other persons must be qualified persons in other fields. This should improve the examination process and hasten the granting of patents.

Petty Patents

In order to qualify as a petty patent, an additional criterion of patentability must be fulfilled. An applicant must demonstrate that the applied-for petty patent provides a solution to a technical problem.  

Other proposed amendments include the application of post-grant opposition and invalidation to petty patents, and substantive examination will be conducted for petty patents before the petty patent holder  exercises its patent right against a third party, including taking legal action against an infringer.

Acceptance of the Protocol Amending the TRIPS Agreement

The TRIPS Agreement established minimum standards for many IP regulations. The Protocol Amending the TRIPS Agreement allows WTO member states to use compulsory licenses to export patented medicines to countries which do not have manufacturing capacity in pharmaceuticals, in the interest of public health. Thailand’s Cabinet recently approved certain aspects of the Protocol based on proposals made by Ministry of Commerce. In particular, Thailand’s Patent Act would be amended to:

  • Accept the Protocol amending the Agreement on TRIPS with regard to Thailand’s public health, and submit this decision to the National Legislative Assembly for approval; and
  • Authorize the Ministry of Foreign Affairs to issue an Instrument of Acceptance after approval is obtained from the Cabinet and the National Legislative Assembly. The Ministry of Commerce will notify the World Trade Organization (WTO) of the acceptance.

Thus far, four categories of compulsory licenses have been proposed in Thailand, as follows:

  • License to a third party to import pharmaceutical products under drug patents into Thailand;
  • License to a third party to manufacture and export pharmaceutical products under drug patents to foreign countries;
  • License to government ministries, bureaus, and departments to import pharmaceutical products under drug patents into Thailand; and
  • License to government ministries, bureaus, and departments to manufacture and export pharmaceutical products to foreign countries.

More categories of compulsory licenses for drug patents and drug process patents will be proposed and discussed. In addition, Thailand’s Patent Office recently stated that the Patent Act should be amended to accommodate the Doha Declaration on the TRIPS Agreement and Public Health, which reaffirms the flexibility of TRIPS member states to provide more access to essential medicines by circumventing patent rights.

Thailand’s Accession to the Hague Agreement

As part of Thailand’s accession to the Hague Agreement, the DIP commissioned an independent study on managing design applications under the Hague Agreement. The DIP identified a number of challenges in Thailand’s current design system, and it continues to make improvements. For example, an e-filing system has been implemented and will be refined in the near future, and there are plans to increase the number of examiners this year.

As the amendments progress, we will update readers on important developments in future issues of Informed Counsel.

RELATED INSIGHTS​ 

August 20, 2026
As part of its membership in Lex Mundi, Tilleke & Gibbins has released the latest edition of its Guide to Doing Business in Thailand, providing an overview of the legal, regulatory, and commercial considerations for companies establishing or expanding operations in Thailand. The 2026 edition offers practical insight into the country’s business environment, investment framework, and operational requirements. The guide covers a wide range of topics relevant to foreign and domestic investors, including: Investment incentives and promotion schemes Financial facilities and banking regulations Exchange controls and money transfers Import and export regulations Business structures and incorporation options Requirements for establishing a business Operational and compliance considerations Business cessation and insolvency procedures Employment and labor laws Taxation Immigration and visa requirements Prepared by Tilleke & Gibbins lawyers across multiple practice areas, the publication outlines key aspects of doing business in Thailand, including foreign investment restrictions, regulatory compliance obligations, corporate structures, employment requirements, and recent legal and economic developments affecting investors. The publication forms part of Lex Mundi’s Country Guides series, a global collection of jurisdiction-specific reference materials prepared by member firms around the world. Together, these guides help companies evaluate opportunities, compare regulatory environments, and plan international business activities across multiple markets. The full Guide to Doing Business in Thailand 2026 is available through the button below.
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 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