Ownership of Improvements. Arcus shall own all right, title and interest in and to any Improvements invented solely by Arcus, including, without limitation, any Intellectual Property Rights therein. Each Party shall own a fifty percent (50%) undivided interest in all Joint Improvements. The Parties hereby make any assignments necessary to accomplish the foregoing ownership provisions. Except as expressly provided in this Agreement and subject to any restrictions therein, each joint owner may make, sell, use, license, assign, mortgage or keep Joint Improvements, and otherwise undertake all activities a sole owner might undertake with respect to such inventions, discoveries and know-how, without the consent of and without accounting to the other joint owner; provided that any assignment, license or other disposition or use # shall at all times be and remain subject to the grants of rights and accompanying conditions and obligations with respect thereto under this Agreement, and # allow the Parties to exercise their rights and perform their obligations under this Agreement, in particular to Develop and Commercialize Licensed Products in at least the same scope as prior to such assignment, license or other such disposition.