How to determine the patent application right of joint invention-creation

* * * Where there is an agreement on the right to apply for a patent for an invention-creation, if there is no agreement, it belongs to the person who worked with * * *. Article 8 of the Patent Law of People's Republic of China (PRC): Unless otherwise agreed, the right to apply for a patent belongs to the invention-creation jointly completed by two or more units or individuals, or the invention-creation entrusted by other units or individuals; After the application is approved, the applicant unit or individual shall be the patentee.