Intellectual Property Code
Section 180. Rights of Assignee. - 180.1. The copyright may be assigned in whole or in part. Within the scope of the assignment, the assignee is entitled to all the rights and remedies which the assignor had with respect to the copyright.
180.2. The copyright is not deemed assigned inter vivos in whole or in part unless there is a written indication of such intention.
180.3. The submission of a literary, photographic or artistic work to a newspaper, magazine or periodical for publication shall constitute only a license to make a single publication unless a greater right is expressly granted. If two (2) or more persons jointly own a copyright or any part thereof, neither of the owners shall be entitled to grant licenses without the prior written consent of the other owner or owners. (Sec. 15, P.D. No. 49a)