Rights of joint owners.
Section 54
SEC. 54. Rights of joint owners.—If two or more persons jointly own the patent and the invention covered thereby either by the issuing of the patent to them jointly or by reason of the assignment of an undivided share in the patent and invention or by reason of the succession in title to such share, each of the joint owners, shall be entitled to personally make, use or sell the invention for his own profit, subject to any contract of agreement, but neither of the owners shall be entitled to grant licenses or to assign his right, title of interest or part thereof without the consent of the other owner or owners, or without proportionately dividing the proceeds with the other owner or owners.