As Chinese cross-border merchants expand businesses on Lazada, Shopee and offline retail channels in Thailand, mastering the full trademark registration workflow supervised by the Department of Intellectual Property (DIP), Ministry of Commerce of Thailand becomes essential. Governed by the Trademark Act B.E.2534 (amended 2016), Thailand adopts the first-to-file principle, meaning the application date outweighs any evidence of prior commercial use. This article focuses on practical filing operations, differences between direct national filing and Madrid Protocol registration, special examination standards for Chinese character trademarks, official time limits and post-registration maintenance obligations, without repeating general legal framework descriptions.
International applicants have two formal approaches to obtain trademark protection within Thailand: direct national filing submitted to DIP, and international registration under the Madrid Protocol with Thailand designated. Each channel has distinct document requirements, official timelines and cost structures. Direct national filing is widely preferred by Chinese e-commerce operators focused solely on the Thai market. Applicants can flexibly adjust goods and service specifications, and local agents handle all official communications directly with DIP. In contrast, the Madrid route requires a basic trademark application or registration in the applicant’s home territory, with one unified application submitted to WIPO. Once DIP issues a provisional refusal against a Madrid international registration, the applicant must promptly appoint a licensed local trademark agent to draft official responses; without a Thai representative, the case will be deemed abandoned automatically.
A non-negotiable procedural rule applies to all overseas entities without a registered business address inside Thailand: foreign applicants cannot submit trademark applications personally and must mandate a qualified local trademark agent with a notarised power of attorney. Self-submission by offshore companies or individuals will be rejected at the formal examination stage. The appointed agent receives office actions, prepares counterstatements in opposition procedures, submits evidence and follows up registration progress. Under the Paris Convention, applicants may claim priority within six months from the earliest basic filing date. All priority supporting materials must be translated into Thai and delivered within three months after submitting the Thai trademark application.
A pre-filing trademark clearance search is strongly recommended to avoid costly rejection. Applicants can retrieve existing trademarks through DIP official database and ASEAN TMview, covering identical marks and confusingly similar signs on identical or related goods. DIP examiners apply integrated similarity assessment standards, examining pronunciation, literal meaning, visual layout and cultural connotations simultaneously. Chinese character trademarks face unique review risks: examiners will analyse both the literal definition of Chinese characters and their Thai transliteration meaning. Any mark carrying inappropriate, offensive or culturally sensitive implications in Thai society will receive absolute refusal notices. Generic terms, simple geographical names and purely descriptive slogans lack inherent distinctiveness. To overcome such refusals, applicants must provide continuous sales records, local advertising materials and consumer feedback to prove acquired distinctiveness.
After receiving complete application materials, DIP launches formal examination to verify document completeness, trademark specification format and compliance of designated goods descriptions. Notably, Thailand rejects overly broad generalised descriptions under the Nice Classification; applicants must list specific individual commodities rather than broad category names. After passing formal review, applications enter substantive examination, which normally lasts 12–16 months. Examiners verify absolute refusal grounds such as illegal use of royal symbols, religious icons and national emblems, as well as relative refusal grounds including conflicts with prior trademark rights. When receiving a refusal notification, applicants have 60 days to submit a response and can apply for one single 60-day extension upon request.
Applications that successfully pass substantive examination will be published on the DIP Official Trademark Gazette, activating the statutory 90-day opposition period. Any interested party holding legitimate rights may file opposition grounds and supporting evidence within this period. Once an opposition is filed, the applicant must submit a counterstatement within 60 days; failure to respond results in automatic abandonment of the trademark application. If no opposition is raised or opposition is dismissed, applicants settle official registration fees within 60 days of receiving notification, then obtain the trademark registration certificate.
Registered trademarks remain valid for ten years calculated from the registration date. Thailand does not set a grace period for overdue renewal. If renewal documents and fees are not submitted before the expiration date, trademark rights terminate completely, and the former owner obtains no priority for refiling the identical trademark. During renewal proceedings, applicants are permitted to delete partial goods or services from the registration scope, while expanding the scope of designated commodities is strictly prohibited. Although trademark assignment and licensing agreements are legally valid without mandatory DIP recording, unrecorded trademark transactions cannot defend against subsequent bona fide third-party trademark purchasers, making official recording highly recommended for risk control.
The most critical long-term compliance requirement is the three-year non-use cancellation system. After registration, continuous genuine commercial use inside Thailand must be maintained; merely exporting goods printed with the trademark to Thailand cannot be recognised as valid use accepted by DIP. Acceptable evidence includes local sales invoices, product packaging circulated in Thailand, e-commerce store listings targeting Thai consumers and offline exhibition materials. Symbolic use such as isolated sample manufacturing or internal test products cannot resist cancellation petitions filed by competitors or trademark squatters. Many Chinese cross-border operators lose trademark rights simply because they fail to systematically archive continuous use evidence year by year.
For brands preparing to launch new product lines in Thailand and facing potential trademark squatting risks, DIP provides limited accelerated examination channels for eligible applications. Accelerated review shortens substantive examination time but cannot skip the opposition phase, and examination criteria remain unchanged. Reasonable scheduling of filing timelines, standardised drafting of goods specifications and reserving sufficient time to respond to official examination opinions can greatly enhance trademark stability for foreign enterprises operating in the Thai market.
Four verifiable, accessible hyperlinks:
1.IPcrossark：https://www.ipcrossark.com/en/trademark.html?cid=51
2.Official English Portal of Thailand Department of Intellectual Property: https://www.ipthailand.go.th/en/
3.WIPO Lex Full Text of Thailand Trademark Act B.E. 2534 (2016 Revision): https://wipo.int/wipolex/en/legislation/details/17164
4.ASEAN TMview Regional Trademark Search Database: https://aseantmview.wipo.int/
