Do contestants need to sign the first prize patent of national technological invention?

Yes, the patentee of the first prize patent of national technological invention is the patentee, that is, the patent applicant or his successor and assignee. In the process of patent authorization, all inventors need to sign a power of attorney to authorize the patentee to exercise the patent right on behalf of all inventors. Therefore, all inventors need to sign in the process of applying for and authorizing the first prize patent of national technological invention.