ホーム > English > Q135. Registration of Extension of Term of Patent Right

Q135. Registration of Extension of Term of Patent Right

Q135. Registration of Extension of Term of Patent Right
 Can a term of patent right be extended beyond statutory 20 years?

A135. Yes, By filing an application for registration of an extension of the term of a patent right, the term can be extended. This extension is permitted only when the patent right is concerning medical drugs or agricultural chemicals, and there have been unexploitable period due to the Pharmaceutical Affairs Act or the Agricultural Chemicals Regulation Act. Extendable period is limited up to five years.