Trademark Opposition and Cancellation Procedures in Thailand

TL;DR

The Trademark Act B.E. 2534 (1991) (พระราชบัญญัติเครื่องหมายการค้า พ.ศ. 2534) — as amended through B.E. 2559 (2016) — gives third parties two principal routes to challenge a trademark filing or registration administered by the Department of Intellectual Property (DIP / กรมทรัพย์สินทางปัญญา): (1) opposition under Section 35, lodged within 60 days of Gazette publication of the accepted application and decided by the Registrar with appeal to the Trademark Board (คณะกรรมการเครื่องหมายการค้า); and (2) cancellation after registration on grounds including non-use of 3 years or more (Section 63), improper registration or similarity to an earlier mark (Section 61), and loss of distinctiveness/genericism (Section 62). Trademark Board decisions are appealable to the Central Intellectual Property and International Trade Court (CIPITC / ศาลทรัพย์สินทางปัญญาและการค้าระหว่างประเทศกลาง) and then to the IP Division of the Supreme Court. Government fees range from THB 200 to 2,000 per filing; opposition typically takes 12-24 months and cancellation 24-48 months. Trademark agents are mandatory for foreign-domiciled applicants.

The Statutory Framework

The principal provisions sit in three groups within the Trademark Act B.E. 2534 (1991):

• Sections 33-38: examination, publication, and opposition before registration.
• Sections 61-65: grounds for cancellation after registration.
• Sections 67-68: appeal pathways — Trademark Board, then CIPITC, then Supreme Court IP Division.

The DIP Registrar makes first-instance decisions. The Trademark Board is the administrative appellate body; the CIPITC is the specialised judicial body.

Opposition Under Section 35

After examination, the Registrar publishes the accepted application in the Trademark Gazette. Any interested person may oppose registration within 60 days of publication. The procedure:

The 60-day window is non-extendable. Late filings are inadmissible and the only remaining route is post-registration cancellation.

Grounds for Opposition

Common grounds invoked under Sections 6-8 and Sections 13-16:

• Lack of distinctiveness (Section 7) — generic, descriptive, or geographical terms without acquired distinctiveness.
• Conflict with earlier registered mark (Section 13) — identical or confusingly similar mark for identical or similar goods/services.
• Earlier well-known mark (Section 8(11)) — even without prior Thai registration, well-known status under Paris Convention Art. 6bis applies.
• Bad faith (Section 8(10)) — applicant knew of the opponent's prior rights and filed to block or extort.
• Contrary to public order or morality (Section 8(9)).
• Misleading as to origin or quality (Section 8(12)).

Cancellation After Registration

Section 63 non-use is the most commonly invoked ground in commercial disputes. The petitioner bears initial burden of showing a 3-year non-use period; the registered owner must then evidence use in Thailand for the relevant goods/services.

Trademark Board vs CIPITC Route

Section 67 provides two routes for cancellation:

• Petition to the Trademark Board — administrative procedure, lower fees, written-evidence focused, typical timeline 12-24 months.
• Action at the CIPITC — direct court action, full evidentiary procedure including witness examination, available for damages claims alongside cancellation, typical timeline 18-36 months at first instance.

Strategic considerations: the Board route is cheaper and faster but the court route enables damages, injunctions, and combination with infringement claims.

Evidence Requirements

• Prior-use evidence: invoices, advertisements, packaging, distribution agreements dated before the disputed filing.
• Market evidence: sales volumes, geographic distribution, market share data, consumer survey results.
• Confusion evidence: consumer surveys (rare in Thailand but increasingly used), instances of actual confusion, expert reports on phonetic/visual/conceptual similarity.
• Well-known status: international registration data, foreign use evidence, marketing spend, recognition awards, prior protected status in Thai cases.
• Bad-faith evidence: prior dealings, copying patterns, communications showing knowledge of opponent's mark.

Foreign documents require notarisation and legalisation (Apostille where applicable; otherwise consular legalisation followed by MFA Chaeng Wattana).

Fees and Timelines

Professional fees for trademark agents and counsel are additional and typically dwarf government fees in contested matters.

Appeal Pathways

• Registrar decision in opposition → appealable to the Trademark Board within 90 days.
• Trademark Board decision → appealable to the CIPITC within 90 days under Section 65.
• CIPITC decision → appealable to the IP Division of the Supreme Court.

Role of Trademark Agents

Section 6 of the Trademark Act requires foreign-domiciled applicants and parties to act through a registered trademark agent in Thailand. Local applicants may self-represent but rarely do for contested matters. Trademark agents are licensed by the DIP; many are also lawyers, but the trademark-agent qualification is distinct.

Common Mistakes

Avoid these traps:

• Missing the 60-day Gazette window. The deadline is non-extendable; setting up a watching service is essential for trademark portfolios.
• Filing opposition without evidence. Bare assertions of confusion fail; the Registrar wants documents and dated proof.
• Untranslated or unlegalised foreign evidence. Documents need certified Thai translations plus notarisation/legalisation.
• Choosing the Board route when damages are needed. Only CIPITC can award damages and injunctions; Board cancels but does not compensate.
• Forgetting Section 63 non-use vulnerability. Registered marks unused for 3+ years are exposed to cancellation by any commercial rival.
• Treating well-known status as automatic. Thailand requires substantial evidence of Thai consumer recognition; foreign fame is necessary but not sufficient.

FAQs

1. Can I oppose a trademark after the 60-day window?

No — the opposition route closes. The only remaining option is post-registration cancellation under Section 61/63 at the Trademark Board or CIPITC.

2. Does a Madrid Protocol filing trigger the same 60-day window?

Yes. International Registrations designating Thailand are published in the Thai Gazette and the 60-day opposition window applies.

3. How is "non-use" measured under Section 63?

Use must be in Thailand, in the course of trade, for the registered goods/services, with the registered mark in registered form (small variations tolerated). Token shipments or test marketing are scrutinised.

4. Can damages be claimed in an opposition?

No — only refusal of registration. Damages require infringement litigation at the CIPITC.

5. Are oral hearings always held?

No — the Registrar can decide on the papers. Oral hearings are at the Registrar's discretion or on a party's reasoned request.

Related Reading

• Protecting Intellectual Property in Thailand
• Intellectual Property and International Trade Court
• Influencer and Content Creator Legal Guide
• E-commerce Consumer Rights in Thailand
• PDPA Implementation: DPO, DPA, and 72-Hour Breach Notification