This office provides the following Taiwan official websites and databases in English for inquiry and browsing by foreigners.
Taiwan official patent and trademark inquiry databases provide a convenient way of inquiring related and updated information. For patent applications, the status starting from filing patent to the current status can be checked from the websites, and we highly recommend you to use them.
Taiwan Intellectual Property Office
http://www.tipo.gov.tw/en/index.aspx
Taiwan Patent Search
http://twpat.tipo.gov.tw/tipotwoc/tipotwekm
Taiwan Trademark Search
http://tmsearch.tipo.gov.tw/TIPO_DRE/BasicIPO.html