Patent Act Article 12

Joint inventorsWhere a right to apply for a patent is jointly owned, the patent application related thereto shall be filed by all the joint owner(s).Where two or more persons engage in any patent-related procedure other than filing a patent application, each of them may complete such procedure independently, except for making a withdrawal or an abandonment of a patent application, filing an application for division or conversion, or taking other actions for which, this Act requires joint execution. However, if a representative is designated by a covenant, such covenant shall prevail.In the case of an event requiring joint execution as set forth in the preceding two paragraphs, one of the joint owners shall be appointed as the recipient of the service of documents. In the absence of such a recipient, the Specific Patent Agency shall name the first-listed joint owner as the recipient and shall notify other joint owners of such service matters.