Patents [No. 40 of 2016 (b) where the patented invention is a product, to prevent any person, without the patentee’s consent, from making, using, offering for sale, selling or importing the patented product; (c) where the patented invention is a process, to prevent any person, without the patentee’s consent, from using, offering for sale, selling or importing the product obtained directly from the patented process; and (d) to assign, transmit or licence the patent. (2) A person shall not do any of the acts, referred to in subsection (1), without the written consent of the patentee. 73. (1) The patent rights, referred to in section seventy-two, shall be personal property, capable of being transferred by any means by which such property may be lawfully transferred, including assignment, mortgage, pledge, testamentary instrument or operation of law. (2) A transfer of a right, referred to in subsection (1), shall not be effective unless it is in writing, signed by or on behalf of the patentee and registered with the Patent Office, in accordance with this Act. (3) A transfer of a right, as provided in subsection (1), binds each successor in title to the patentee, except a purchaser in good faith for value without actual or constructive notice of the transfer and a person who derives title from such purchaser. (4) The Registrar shall record or cause to be recorded, in the Register, all transfers of rights or interests undertaken in accordance with this Act. 74. Where a patent is granted to two or more patentees, the patentees shall, subject to any agreement in force, be considered as joint owners. 75. (1) Despite any other provision of this Act, rights under a patent shall be limited to industrial or commercial activities and shall not extend to the following: (a) acts done by any person, involving a patented invention, for scientific research; (b) the use of the patented invention on a foreign vessel, aircraft, spacecraft or land vehicles, which temporarily or accidentally enters the territory of Zambia, provided the use is exclusively for the needs of the vessel or in the construction or operation of the aircraft, spacecraft or land vehicle; 833 Nature of patent right Joint ownership of patent Limitations of patent rights