Registering a trademark in Thailand
Filing with the Department of Intellectual Property under the Trademark Act B.E. 2534, similarity searching, Nice classification of goods and services, the ten-year term of protection and renewal.
Where is a Thai trademark application filed and what documents are needed?
Applications are filed with the Department of Intellectual Property under the Ministry of Commerce, either in person or through the department's electronic filing system. The core papers are the application form with a representation of the mark, a clearly worded list of goods or services, proof of the applicant such as an ID card or a company affidavit from the Department of Business Development, and a power of attorney if an agent files. An applicant resident abroad must have an agent or a contact address in Thailand.
How long does a registered Thai trademark last and how is it renewed?
The Trademark Act B.E. 2534 gives a ten-year term counted from the filing date, renewable for further ten-year periods without limit. A renewal request may be filed within three months before expiry, and late renewal is still possible within six months after expiry with a surcharge. If no renewal is filed the registrar cancels the registration.
What is the Nice classification and how many classes should be filed?
The Nice system divides goods and services into 45 classes, classes 1 to 34 for goods and 35 to 45 for services, and Thailand applies it for classification. File only the classes and item wordings you actually use or plan to use in the near term, because over-broad coverage raises the risk of opposition and of partial cancellation for non-use later.
What can be done if the registrar refuses an application, and by when?
The applicant may appeal to the Trademark Board within sixty days of receiving the registrar's notice, under the Trademark Act B.E. 2534 as amended by the third amendment of B.E. 2559. An appeal is far stronger with dated evidence of genuine use such as tax invoices, advertising material and packaging photographs. If no appeal is filed within the deadline the order becomes final.
Can a registered mark be cancelled for non-use?
Yes. An interested person or the registrar may ask the Trademark Board to cancel a registration if it is shown that the owner had no bona fide intention to use the mark, or did not use it at all during the three years before the request, without proper reason. For this reason owners should keep continuous dated evidence of use tied to the registered classes.
Which court hears trademark and patent infringement cases in Thailand?
The Central Intellectual Property and International Trade Court, a specialised court with nationwide jurisdiction over civil and criminal intellectual property matters. Certain acts such as counterfeiting or imitating a registered mark carry criminal penalties under specific legislation. Rights holders may also record their rights with Thai Customs so that suspected infringing goods can be watched at the border.
Who owns copyright in a logo or software created by a contractor?
Where a work is commissioned, copyright belongs to the person who commissioned it unless agreed otherwise. Where an employee creates a work in the course of employment, copyright belongs to the employee unless there is a written agreement to the contrary. Because the default rules differ, businesses should always take a signed written assignment, especially for software and for designs that will later be filed as trademarks.
Can one product be protected by several kinds of IP at once?
Yes, and layering is usually the best value. The internal mechanism can go to an invention or petty patent, the external shape to a design patent, the name and logo to trademark registration, while manuals, graphics and software already enjoy copyright protection. Planning these together closes the gaps a competitor would otherwise copy.
What counts as appropriate measures to keep a trade secret?
In practice it means measures provable in court, such as confidentiality agreements with staff and partners, need-to-know access control, system access logging, classification markings on documents, and a process for returning or destroying information when a relationship ends. Without such measures the information may fall outside the statutory definition of a trade secret.
How long does Thai trademark registration take in 2026?
Typically twelve to eighteen months where no office action or opposition arises. The stages are filing, formality and similarity examination, sixty-day publication for opposition, then payment of the registration fee. Protection runs ten years from the filing date and is renewable for successive ten-year terms, with renewal filed within three months before expiry.
How do we choose the right Nice classes?
Thailand applies the current Nice Classification with forty-five classes — goods in 1 to 34 and services in 35 to 45. Specify goods that match actual or genuinely planned use within three years, because a mark unused for three consecutive years can be challenged for cancellation. Over-broad specifications increase fees and create attack surface.
Can we appeal a registrar's refusal?
Yes, to the Trademark Board within sixty days of the order, and if the Board's decision is unsatisfactory, to the Central Intellectual Property and International Trade Court within ninety days. Effective appeals focus on evidence of real use in Thailand and a detailed comparison distinguishing the cited earlier mark.
How do we get infringing listings removed online?
Major platforms have rights-owner portals requiring the trademark registration certificate or copyright ownership evidence plus the infringing URLs. The Copyright Act also lets a rights owner apply to the court to order a service provider to take content down. Holding a Thai registration in advance makes takedowns much faster.
Can foreigners register a trademark in Thailand?
Yes — there is no nationality restriction and no Thai company is needed. An applicant without a Thai domicile must appoint a representative resident in Thailand to receive registrar correspondence. The power of attorney must be certified as prescribed, and the applicant's address should match its home corporate records to avoid later office actions.
Can a trademark renewal be filed late?
Renewal may be filed within three months before expiry, and late within six months after expiry with a surcharge. Beyond that the registration lapses and a fresh application is required, losing the original filing date and risking a third party filing first.
What searches should be run before filing a trademark in Thailand?
Search the Department of Intellectual Property register for identical spellings, phonetically similar words, translations with the same meaning, and device marks that give a similar overall impression, covering both the intended class and neighbouring classes. Then assess distinctiveness: words that directly describe the goods, well-known geographical names and generic terms are commonly refused by the registrar. Adding a stylised or figurative element often raises distinctiveness enough to proceed.
When can a registered Thai trademark be cancelled for non-use?
An interested person or the registrar may ask the Trademark Board to cancel a mark if the owner never used it in good faith or did not use it during the three years preceding the petition, unless special circumstances prevented use. Owners should therefore keep systematic evidence of use: dated invoices, photographs of packaging bearing the mark, advertising materials and online storefront listings.
The registrar refused the mark. What is the appeal route and the deadline?
File an appeal with the Trademark Board within the period stated in the notification of the order, counted from receipt. The appeal should rebut each ground the registrar relied on and attach supporting evidence: proof of acquired distinctiveness through use, search results showing that the cited mark covers different goods or a different consumer group, or a letter of consent from the cited owner. If the Board's decision is unfavourable, a case may still be brought before the Central Intellectual Property and International Trade Court within the statutory period.
How is an opposition against a published application filed?
Once an application is published, an interested person files a notice of opposition with the registrar within the statutory period from the publication date, stating the grounds — a better right, confusing similarity, or conflict with public order — with evidence of prior use. The applicant may file a counter-statement, the registrar decides, and either party may appeal to the Trademark Board.
How does a geographical indication differ from a trademark?
A geographical indication protects the name of a place used for goods whose quality or reputation derives from that place. The right belongs to producers in the area who follow the published quality-control manual, not to a single owner, whereas a trademark is an exclusive right to indicate commercial origin. Producers wanting to use a registered GI must apply to be listed and pass inspection under the control system.
How can rights owners have Thai Customs stop infringing imports?
Rights owners may record their trademark or copyright with the Customs Department for watch-listing, submitting proof of ownership, genuine product samples, the features that distinguish counterfeits, and contact details that respond quickly. When suspect goods are detained, officers give the rights owner a short window to confirm, so appoint an authorised representative in Thailand in advance and be prepared to post security under the regulations.
Must a trademark licence be recorded in Thailand?
A licence of a registered trademark must be in writing and recorded with the registrar. It must contain terms enabling the owner to control the quality of the licensee's goods or services and must specify the goods or services licensed. An unrecorded licence may be ineffective under trademark law and can weaken enforcement. Assignments of registered marks must likewise be recorded.
How do I check whether a trademark is already taken in Thailand?
Search the Department of Intellectual Property database and WIPO's Global Brand Database for identical words, phonetic equivalents and similar device marks in the same and neighbouring Nice classes. Search results are only an indication, because the registrar also assesses similarity through the eyes of ordinary consumers. Prepare a fallback, such as a modified logotype or an added distinctive element, before filing.
Does a foreign applicant need a local agent to file a Thai trademark?
An applicant without a domicile in Thailand must appoint an agent with a Thai address to receive the registrar's notices. The power of attorney is signed before a notary abroad and then apostilled, or legalised by the Royal Thai Embassy where the Hague Convention does not apply, and filed with a certified Thai translation. A defective power triggers an office action and a fresh deadline, putting the original filing date at risk.
How long does Thai trademark registration take?
Roughly 12 to 18 months where no office action or opposition arises. The stages are formality check, examination for similarity, 60-day publication for opposition, then payment of the registration fee. If the mark is partly refused, the applicant must respond within the period stated in the order, and an unsatisfactory outcome can be appealed to the Board of Trademarks.
Should the list of goods and services be broad or narrow?
Cover what is genuinely used plus what is realistically planned for the next three to five years, without going so broad that the registrar demands specification or that the registration becomes vulnerable to non-use cancellation. Thailand follows the Nice classification and publishes an accepted goods list; drawing wording from it reduces office actions and keeps the timetable predictable.
Must a registered Thai trademark actually be used?
An interested party may petition to cancel a registration where the mark has not been used in good faith for the registered goods for three consecutive years before the petition. Keep evidence of use — tax invoices, packaging photographs showing the mark, dated online storefront pages and advertising — filed by year so it can be produced immediately if the registration is challenged.
When is a Thai trademark renewed, and what if the deadline is missed?
Protection lasts ten years from the filing date and is renewable for further ten-year terms, with renewal filed within three months before expiry. A late renewal is still possible within six months after expiry with a surcharge. After that the registration lapses and a fresh application is needed, losing priority and exposing the brand to an intervening filing, so diarise a reminder at least a year ahead.
Do trademark assignments and licences need to be recorded in Thailand?
Assignments and licence agreements must be in writing and recorded with the registrar, otherwise they cannot be raised against third parties. A licence must set out the owner's quality control, the goods covered, the territory and the term. Where a party signs abroad, the signature should be notarised and apostilled or legalised by the Royal Thai Embassy, with a certified Thai translation.
How do I get infringing listings removed from Thai online marketplaces?
Collect ownership evidence — the trademark registration certificate or copyright notification certificate — along with screenshots showing the URL, date, time and seller details, then file through the platform's infringement channel. For stronger legal effect, an application can be made to the Intellectual Property and International Trade Court to suppress the material under the computer-related offences legislation.
How does customs recordal against counterfeits work in Thailand?
Rights holders record their trademarks and copyrights with the Customs Department, supplying a guide distinguishing genuine from counterfeit goods and an urgent contact channel. When officers detain suspect goods, the rights holder must confirm within a very short deadline, so a responsive local contact is essential. Recordal does not mean customs polices the right for you, but it materially improves interception at the border.
What can be done when someone registers a domain matching our trademark?
Where a domain identical or confusingly similar to your mark was registered in bad faith, a complaint can be filed under the UDRP with an ICANN-approved dispute resolution provider. You must prove three elements: confusing similarity, the holder's lack of rights or legitimate interests, and bad-faith registration or use. Domains under .th are handled by the Thai registry's own dispute mechanism.
What intellectual property documents does a franchise business need in Thailand?
A registered trademark in the classes matching the goods and services, a franchise agreement granting the licence with quality control provisions, an operations manual protected as both copyright and trade secret, and pre-contract disclosure documents required by the applicable regulations. Where the franchisee is overseas, fix the governing law and dispute resolution forum expressly from the outset.
What documents and steps are needed to file a Thai trademark application?
You need form Kor.01, a clear representation of the mark, a goods or services list classified under the Nice system, proof of identity such as an ID card or company affidavit, and a stamped power of attorney if an agent files. Applicants based abroad must appoint a Thai representative. The process runs from a clearance search, to filing, examination, 60-day publication for opposition, then payment of the registration fee.
What does recording a trademark with Thai Customs achieve?
Recordal gives officers a reference to detect and detain infringing goods at import and export checkpoints. Rights holders should supply an illustrated genuine-versus-fake guide and a contact reachable at all times, because the confirmation window after a detention is very short.
Must trademark assignments and licences be registered?
Assignments and licence agreements for registered trademarks must be in writing and recorded with the registrar to be fully effective. Licences must set out quality control and the scope of use. Without recordal the agreement may not be enforceable against third parties and its validity can be challenged later.
Related topics
Official sources referenced
- • กรมทรัพย์สินทางปัญญา กระทรวงพาณิชย์ (ipthailand.go.th)
- • WIPO — Madrid System (wipo.int)
- • WIPO — Patent Cooperation Treaty (PCT)
- • กรมพัฒนาธุรกิจการค้า — หนังสือรับรองนิติบุคคล (dbd.go.th)
- • กรมการกงสุล — นิติกรณ์และรับรองคำแปล (consular.mfa.go.th)
Government fees and processing times on this page were last verified in July 2026 by our Notarial Services Attorneys registered with the Lawyers Council of Thailand. Figures follow published agency schedules, may change without notice, and actual turnaround depends on each authority's queue. Please reconfirm with the issuing authority before you file.