Thailand: Impact of international patent developments

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

Thailand: Impact of international patent developments

On May 5 2017, the Thai Department of Intellectual Property (DIP) issued two announcements in regard to patent processes in Thailand: (1) Announcement on the Establishment of a List of International Search Authorities and International Preliminary Examining Authorities (No 2); and (2) Announcement on Fees for International Applications, International Searches, Delivery of International Applications and Late Payment of Fees.

The first announcement specifies the Intellectual Property Office of Singapore (IPOS) among the list of International Search Authorities (ISA) and the International Preliminary Examining Authorities (IPEA), while the second announcement establishes new fees for international applications, which have been adjusted to reflect the current fee rates charged by the listed ISAs and the current currency exchange rates.

These two developments reflect the continued positive steps being taken by the DIP to create greater efficiencies and to upgrade patent processes, as well as to clear the patent backlog that poses a constant obstacle to timely patent prosecution in Thailand.

IPOS as ISA and IPEA

The DIP's Announcement on the Establishment of a List of International Search Authorities and International Preliminary Examining Authorities (No 2) confirms the IPOS as a body qualified as an ISA and an IPEA for international applications filed in Thailand.

According to the search fees outlined in the Announcement on Fees for International Applications, International Searches, Delivery of International Applications and Late Payment of Fees, fees for searches conducted by IPOS are the third highest after the United States Patent and Trademark Office and the European Patent Office at ฿61,000 ($1,720) without the possibility of a reduced rate. However, numerous possible advantages of using the IPOS as the ISA and IPEA should not be overlooked. As IPOS's turnaround time to issue a first office action is approximately 60 days, and the Office is able to review prior art published only in Chinese as part of the search and examination process, the use of IPOS as the ISA and IPEA represents a fast and thorough search process. IPOS is also used as the ISA and IPEA for PCT applications filed with the United States, Japan, Mexico, Brunei, Indonesia, Laos or Vietnam as the receiving office.

Amended fees for international patent applications

The Announcement on Fees for International Patent Applications, International Searches, Delivery of International Applications and Late Payment of Fees establishes new fees, which have been adjusted to reflect the current fee rates charged by the listed ISAs and the current currency exchange rates.

According to this Announcement, the international application paper filing fee in Thailand is set at ฿53,000 ($1,430) for the first 30 pages of the application and ฿750 ($22) per subsequent additional page. Further, the online filing fees have been adjusted to between ฿41,000 and ฿49,000 ($1,155 to $1,380) depending on the electronic file types in which the documents are submitted. Reduced rates are available for applicants who are nationals of or reside in certain countries, as specified under the PCT.

Overall, the fees have been slightly reduced from the previously applicable rates in order to reflect the exchange fluctuations. Additionally, the search fees for each qualified ISA have been reduced as well, except for the Japan Patent Office and the Australia Patent Office. Such fee reductions will be beneficial for all patent applicants.



Daniel Greif

Dhanasun Chumchuay

Spruson & Ferguson

Nos. 496-502 Amarin Plaza BuildingUnit Nos. 1806-1807, 18th Floor, Ploenchit Road, Lumpini Sub-District, Pathumwan District, Bangkok 10330 Thailand

Tel: +66 2 305 6893

mail.asia@spruson.com

www.spruson.com


more from across site and SHARED ros bottom lb

More from across our site

Counsel for SEP owners and implementers are keeping an eye on the case, which could help shape patent enforcement strategy for years to come
Jacob Schroeder explains how he and his team secured victory for Promptu in a long-running patent infringement battle with Comcast
After Matthew McConaughey registered trademarks to protect his voice and likeness against AI use, lawyers at Skadden explore the options available for celebrities keen to protect their image
The Via members, represented by Licks Attorneys, target the Chinese company and three local outfits, adding to Brazil’s emergence as a key SEP litigation venue
The firm, which has revealed profits of £990,837, claims it is the disruptive force in the IP-legal industry
In the first of a two-parter, lawyers at Santarelli analyse the patentability of therapeutic inventions where publication of clinical trial protocols occurs before the application's filing date
Arun Hill at Clarivate assesses the Top 100 Global Innovators 2026 list, including why AI has assumed a strategic importance for innovation
Practitioners and law firms should keep their eyes peeled for the shortlists for our annual awards
Despite a broader slowdown in US IP partner hiring in 2025, litigation demand drove aggressive lateral expansion at select firms
Winston Taylor is expected to launch in May 2026 with more than 1,400 lawyers across the US, UK, Europe, Latin America and the Middle East
Gift this article