Preparations for amending Thailand’s Patent Act gather pace

Managing IP is part of Legal Benchmarking Limited, 1-2 Paris Gardens, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Cookies Settings

Preparations for amending Thailand’s Patent Act gather pace

Sponsored by

tillekegibbins.png
Word legislation

October 31 2020, marked the closing of the public comment period for Thailand's proposed amendments to the Patent Act B.E. 2522 (1979). The Department of Intellectual Property (DIP) had published its latest draft of the amendments on September 30 for the month-long period of public feedback.

The process of drafting amendments has been pending for several years, but it began to take a higher profile in February 2018 with the convening of public hearings on the proposed new legislation. After a series of committee meetings through November of that year, the cabinet approved a set of proposed amendments in January 2019.

After further internal discussions, attention turned to the drafting of a companion law specifically for industrial designs, in preparation for Thailand's accession to the Hague Agreement Concerning the International Registration of Industrial Designs. A similar process of public hearings and committee meetings was followed, but in March 2020, the cabinet requested that industrial design legislation be combined with the Patent Act amendments into a single new Patent Act.

Therefore, the draft Patent Act as it currently stands covers both patents and designs. Some of the major patent matters proposed for amendment are as follows:

Genetic resources (GRs), genetic material, derivative works and traditional knowledge (TK)

Inventions that use GRs or TK must disclose the source, access, and benefit-sharing plan in the patent application.

Disclosure grace period

Disclosure of subject matter of an invention within the 12 months before the filing of a patent application is not deemed defeating if the disclosure stems from the subject matter being obtained unlawfully or is made by the inventor, the patent applicant, or others they have authorised to do so.

Dual publication

Patent applications will be published twice–first within 18 months from the application's filing date in Thailand, and again when the substantive examination is completed. The second publication opens the 90-day opposition period, after which the patent will be granted if there is no opposition.

Divisional applications

Division of a patent application can be requested by the applicant before the second publication of the patent. In the current Patent Act, divisional applications are not allowed, and dividing a patent application is only at the discretion of the patent examiner.

Reduced time for requesting substantive examination of a patent

The time allowed for requesting substantive examination of a patent application is reduced to three years from the filing date in Thailand, down from the current five years from the publication date.

Increased time for requesting substantive examination of a petty patent

The time allowed for requesting substantive examination of a petty patent application is increased to six years, up from the current one year.

As explained earlier, the draft law also includes significant changes to industrial design registration procedures and introduces provisions enabling compliance with the Hague Agreement. This includes introduction of partial designs and the Japanese-style related design protection system, greater clarification of the "novelty" criteria, a 12-month grace period for design applications, voluntary filing of divisional applications, streamlined registration procedures for design applications, extension of the term of protection to 15 years, an improved infringement test, and extension of the scope of defences to infringement.

The proposed patent and design-related amendments mentioned above represent significant potential developments in Thailand's regulatory regime for patents and industrial designs. These draft amendments are likely to undergo additional changes in response to comments received during the public hearings and further revisions by the cabinet and the Council of State, and further updates on this subject are expected to become available around the end of 2021.





more from across site and SHARED ros bottom lb

More from across our site

Anita Polott, who is celebrating three decades at Morgan Lewis this year, reflects on career progression, stepping into unfamiliar territory, and leadership frameworks
Technical excellence remains essential, but many firms are discovering that packaging IP with complementary practice areas can unlock new clients and a stronger competitive position
As international interest in Southeast Asia grows, Sheng Rong Tng discusses how changing client demands and the firm’s multidisciplinary model are helping it compete for complex regional mandates
Todd Hopfinger, director in Sterne Kessler’s electronics practice group, says IP owners are contemplating how patent rights will be enforced as commercial activity expands beyond Earth
Christopher Stothers' arrival strengthens the firm's life sciences, technology and UPC offering as competition for top European litigators intensifies
Armstrong Teasdale’s Jim Heinen Jr discusses the challenge of balancing billables, business development and family life and explains why not all patent lawyers are science nerds
From cross-border jurisdiction to the end of the transitional period, Powell Gilbert’s Ioana Sabau and Bryce Matthewson predict the biggest talking points ahead
A wave of office launches and lateral hires reflects the draw of patent disputes, but booming AI, semiconductor and data centre markets are offering an even bigger IP opportunity
The hire of Frederick Nicolle as a partner continues Pinsent Masons' expansion while reducing Simmons’ patent prosecution offering in London to zero
The expansion into Granada forms part of a national ‘decentralisation’ strategy focused on providing proximity to research and tech businesses away from traditional hubs
Gift this article