Application via Madrid Protocol 
Taiwan is not a Contracting Party to the Madrid System. Therefore, an international application cannot be filed through the Taiwan Intellectual Property Office as the Office of Origin under the Madrid Protocol.

 Registrable types of trademark 
Word, design, symbol, color, three-dimensional shape, motion, hologram, sound, or any combination thereof

 Type of Application 
Trademark, Collective Trademark, Collective Membership Mark, Certification Mark

 Limitation on Numbers of Items 
For Classes 1–34: Up to 20 designated goods; an additional fee is charged for each designated good exceeding 20.
For Class 35: Up to 5 designated retail services for specific goods; an additional fee is charged for each designated retail service exceeding 5.
For Classes 36–45: No limit on the number of designated services.

 International Priority Claim 
Priority may be claimed where the applicant has duly filed an application for registration of the same trademark in a member of the World Trade Organization or in a country that mutually recognizes priority rights with Taiwan, and files an application in Taiwan for registration of the same trademark for the same or some of the goods or services within 6 months from the filing date of the first application. The filing date of the first application shall be recognized as the priority date.

 Exhibition Priority Claim 
Priority may be claimed where the applicant displays the trademark on goods or services at an international exhibition hosted or recognized by the Government of the Republic of China, and files an application for trademark registration within 6 months from the date on which the goods or services were first displayed. The filing date shall be the date on which the goods or services were first displayed.

 Opposition 
Any person who believes that a registered trademark violates the provisions of the Trademark Act may file an opposition against the trademark registration within 3 months from the date of publication of the trademark registration.
 
 Invalidation 
An interested party may apply for invalidation of a trademark registration within 5 years from the publication date of the trademark registration, except where otherwise provided by the Trademark Act.

 Cancellation (revocation) 
Any person may apply for revocation of a trademark registration on the ground that the trademark has not been used for a continuous period of 3 years without just cause.

Taiwan Intellectual Property Office (TIPO)​

Taiwan Trademark Search Database