특허성을 인정받지 못하여 등록을 받지 못한 발명이거나 유효하게 존속하지 못하는 발명, 이미 공지된 발명 등은 배타권이 없다.
An invention that has not been registered because patentability has not been recognized, an invention that does not survive effectively, or an invention that is already known does not have an exclusive right.