Intellectual Property Attorneys  

Siam Trademark Associates

About Us
Meet Us
Contact Us
Domain Name IP FAQ
Trademark FAQ
Enforcement FAQ
Trademark Services
Trademark Classifaction (Eng)
Trademark Classifaction (Thai)

powered by FreeFind
Siam Trademark Associates
(A Division of Chaninat & Leeds)

Suite 10/154 Trendy Office Building,
Floor, Sukhumvit Road Soi 13
Klongtoey Nua, Vadhana
Bangkok, Thailand 10110

Tel: (662) 168 7001 (-3)
Fax: (662) 168 7004
Trademark Services


Trademark Search:  Possible delays and complications can be avoided by performing a pre-registration search to determine if a trademark of a similar style or design exists.  The applicant may make necessary adjustments to the trademark before beginning the registration process.

Trademark Registration: Trademarks, collective marks, certification marks and service marks may be registered in 34 different classes of goods and 8 different classes of services

Appeals: Appeals to proposed emendations and application denials must be submitted within 90 days to the Trademark Board. Failure to meet any deadlines or requirements will result in termination of the application. All decisions made by the Trademark Board are final.

Trademark Renewal: Trademark registrations must be renewed every 10 years.  Original certificates of the trademark registration should be presented along with an explanation of the goods for which the trademark is intended and an application for renewal. Proof of use of the trademark is not normally required and the trademark's validity will not be reassessed.  Applications must be submitted 90 days prior to expiration of the current trademark registration.

Trademark Watching: Preventing the registration of an infringing trademark is much less costly and time consuming than challenging a certified trademark.  Trademarks pending approval are published in the Trademark Journal and any party may file an opposition to the trademark within 90 days of publication.  We can monitor the 12 monthly editions of the Trademark Journal to ensure the protection of your intellectual property rights.

Licensing Agreements: Owners of Thailand trademarks are required to register licensing agreements with other parties permitted to use their trademark.  Licensing agreements must include the terms and conditions of the agreement, good or services for which the licensed trademark is to be used and if the right of the authorized licensee is exclusive.

Enforcement: Our experienced litigators can challenge persons and entities infringing your trademark or violating your intellectual property rights in the Thailand Intellectual Property Courts.   We also cooperate with the Economic Crime Police to investigate and arrest manufacturers, vendors and other infringers of intellectual property. Read more about enforcement of intellectual property rights in Thailand.