
SIAC Consulting Co. Ltd
Trademark Registration
Overview
Registering a trademark in Thailand protects your brand against counterfeiting and infringement. While foreign trademarks are partially recognized, local registration with the Department of Intellectual Property (DIP) is necessary for full rights, with protection commencing upon submission of your application.
Requirements
A fixed business address in Thailand.
A Thai agent with notarized power of attorney if not a resident.
The application must be in Thai.
Trademark Criteria
Must be distinctive and not similar to existing marks.
Cannot include royal emblems or official symbols.
Should clearly represent the goods or services.
Required Documents
Trademark logo/design sample (exact color).
Company affidavit (original for Thai companies, copy for foreign).
Signed passport of authorized directors.
Notarized power of attorney if signed abroad.
Product sample and business address in Thailand.
Application Process
Trademark Search: Verify no similar marks exist.
File Application: Submit documents to the DIP in Bangkok.
Examination: Registrar reviews compliance.
Publication: Approved marks published in the Trademark Gazette for 90 days.
Objection Period: If no objections arise, registration is granted.
Fee Payment & Certificate: Pay fees to receive the trademark certificate.
Timeline
Processing: 12–18 months.
Validity: 10 years from registration.
Renewal: 90 days before or within 6 months after expiry.
Fees
Search (per hour): 200 THB
Registration (1–5 items/class): 1,000 THB
Registration (>5 items/class): 9,000 THB
Opposition: 2,000 THB
Appeal: 4,000 THB
Renewal (1–5 items/class): 2,000 THB
Renewal (>5 items/class): 18,000 THB
Trademark Classes
Thailand uses the Nice Classification (10th edition) system, with 34 classes for goods and 8 for services, requiring separate applications.
Changing or Assigning a Trademark
Trademark owners can transfer rights, update ownership details, and submit evidence (assignment documents, IDs, etc.) within 90 days of the original application or approval.
Renewal
Trademark renewals can be requested 90 days before or within 6 months after expiry, requiring the original registration certificate, power of attorney (if applicable), and renewal fees.
Trademark Infringement & Enforcement
Using a registered mark without authorization constitutes infringement. Registered trademarks are protected under The Trademark Act B.E. 2534, allowing owners to sue, claim damages, and seek criminal penalties. Unregistered marks have weaker protections.
Conclusion
For those looking to establish or expand their brand in Thailand, local trademark registration is crucial for protection against infringement. Many foreign applicants opt to work with licensed Thai trademark agents or law firms for efficient processing and communication.

Siac Consulting Experts
Specializes in Thai company formation for foreign entrepreneurs, with expertise in BOI registration, and ongoing corporate compliance.

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Trademark Registration
Overview
Registering a trademark in Thailand protects your brand against counterfeiting and infringement. While foreign trademarks are partially recognized, local registration with the Department of Intellectual Property (DIP) is necessary for full rights, with protection commencing upon submission of your application.
Requirements
A fixed business address in Thailand.
A Thai agent with notarized power of attorney if not a resident.
The application must be in Thai.
Trademark Criteria
Must be distinctive and not similar to existing marks.
Cannot include royal emblems or official symbols.
Should clearly represent the goods or services.
Required Documents
Trademark logo/design sample (exact color).
Company affidavit (original for Thai companies, copy for foreign).
Signed passport of authorized directors.
Notarized power of attorney if signed abroad.
Product sample and business address in Thailand.
Application Process
Trademark Search: Verify no similar marks exist.
File Application: Submit documents to the DIP in Bangkok.
Examination: Registrar reviews compliance.
Publication: Approved marks published in the Trademark Gazette for 90 days.
Objection Period: If no objections arise, registration is granted.
Fee Payment & Certificate: Pay fees to receive the trademark certificate.
Timeline
Processing: 12–18 months.
Validity: 10 years from registration.
Renewal: 90 days before or within 6 months after expiry.
Fees
Search (per hour): 200 THB
Registration (1–5 items/class): 1,000 THB
Registration (>5 items/class): 9,000 THB
Opposition: 2,000 THB
Appeal: 4,000 THB
Renewal (1–5 items/class): 2,000 THB
Renewal (>5 items/class): 18,000 THB
Trademark Classes
Thailand uses the Nice Classification (10th edition) system, with 34 classes for goods and 8 for services, requiring separate applications.
Changing or Assigning a Trademark
Trademark owners can transfer rights, update ownership details, and submit evidence (assignment documents, IDs, etc.) within 90 days of the original application or approval.
Renewal
Trademark renewals can be requested 90 days before or within 6 months after expiry, requiring the original registration certificate, power of attorney (if applicable), and renewal fees.
Trademark Infringement & Enforcement
Using a registered mark without authorization constitutes infringement. Registered trademarks are protected under The Trademark Act B.E. 2534, allowing owners to sue, claim damages, and seek criminal penalties. Unregistered marks have weaker protections.
Conclusion
For those looking to establish or expand their brand in Thailand, local trademark registration is crucial for protection against infringement. Many foreign applicants opt to work with licensed Thai trademark agents or law firms for efficient processing and communication.
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Siac Consulting Experts
Specializes in Thai company formation for foreign entrepreneurs, with expertise in BOI registration, and ongoing corporate compliance.
Stay up-to-date
Helpful Links
SIAC Consulting Co. Ltd
Trademark Registration
Mental Health Matters: Traveling and Coping with Anxiety
Overview
Registering a trademark in Thailand protects your brand against counterfeiting and infringement. While foreign trademarks are partially recognized, local registration with the Department of Intellectual Property (DIP) is necessary for full rights, with protection commencing upon submission of your application.
Requirements
A fixed business address in Thailand.
A Thai agent with notarized power of attorney if not a resident.
The application must be in Thai.
Trademark Criteria
Must be distinctive and not similar to existing marks.
Cannot include royal emblems or official symbols.
Should clearly represent the goods or services.
Required Documents
Trademark logo/design sample (exact color).
Company affidavit (original for Thai companies, copy for foreign).
Signed passport of authorized directors.
Notarized power of attorney if signed abroad.
Product sample and business address in Thailand.
Application Process
Trademark Search: Verify no similar marks exist.
File Application: Submit documents to the DIP in Bangkok.
Examination: Registrar reviews compliance.
Publication: Approved marks published in the Trademark Gazette for 90 days.
Objection Period: If no objections arise, registration is granted.
Fee Payment & Certificate: Pay fees to receive the trademark certificate.
Timeline
Processing: 12–18 months.
Validity: 10 years from registration.
Renewal: 90 days before or within 6 months after expiry.
Fees
Search (per hour): 200 THB
Registration (1–5 items/class): 1,000 THB
Registration (>5 items/class): 9,000 THB
Opposition: 2,000 THB
Appeal: 4,000 THB
Renewal (1–5 items/class): 2,000 THB
Renewal (>5 items/class): 18,000 THB
Trademark Classes
Thailand uses the Nice Classification (10th edition) system, with 34 classes for goods and 8 for services, requiring separate applications.
Changing or Assigning a Trademark
Trademark owners can transfer rights, update ownership details, and submit evidence (assignment documents, IDs, etc.) within 90 days of the original application or approval.
Renewal
Trademark renewals can be requested 90 days before or within 6 months after expiry, requiring the original registration certificate, power of attorney (if applicable), and renewal fees.
Trademark Infringement & Enforcement
Using a registered mark without authorization constitutes infringement. Registered trademarks are protected under The Trademark Act B.E. 2534, allowing owners to sue, claim damages, and seek criminal penalties. Unregistered marks have weaker protections.
Conclusion
For those looking to establish or expand their brand in Thailand, local trademark registration is crucial for protection against infringement. Many foreign applicants opt to work with licensed Thai trademark agents or law firms for efficient processing and communication.
Stay up-to-date
Helpful Links
































