(i) to use that art or process within Zimbabwe; and (ii) to use, offer for sale or sell within Zimbabwe any manufacture or product obtained directly by that art or process; and (iii) to import into Zimbabwe any manufacture or product obtained directly by that art or process; in such manner as he thinks fit, so that he enjoys the whole profit and advantage accruing from the invention during the term of the patent. [substituted by Act 9 of 2002, with effect from the 20th December, 2002.] (5) The rights granted in subsection (4) shall not be construed as prohibiting any person from making, constructing, using or selling the patented invention solely for uses reasonably related to the development and submission of information required under any law that regulates the manufacturing, construction, use or sale of any product. (6) The rights granted in subsection (4) shall not have effect in relation to a product which has been put on the market in any country by the patent holder or by an authorised person. [inserted by Act 9 of 2002, with effect from the 20th December, 2002.] 24A Parallel importation of patented products etc. A patented product which has been put on the market in another country by a patentee may be imported into Zimbabwe, without the consent of the patentee, if the cost of importing such product is less than the cost of purchasing from the patentee. [inserted by Act 9 of 2002, with effect from the 20th December, 2002.] 24B Test batches of patented products (1) Test batches of a patented product may be produced without the consent of the patentee six months before the expiry of the patent: Provided that the test batches shall not be put on the market before the expiry date of the patent. (2) Where test batches of a patented product have been produced in terms of subsection (1), the term of the patent of the original product shall not be extended. [inserted by Act 9 of 2002, with effect from the 20th December, 2002.] 25 Term of patent Subject to this Act, the terms of every patent shall be twenty years from the date on which the application for the patent was lodged at the Patent Office in terms of paragraph (b) of subsection (1) of section seven. [substituted by Act 9 of 2002, with effect from the 20th December, 2002.] 26 Patents of addition (1) Subject to this section, where an application for a patent is pending or a patent has been granted for an invention (hereinafter referred to as the main invention) and the applicant or patentee applies for a further patent in respect of any improvement in or modification of the main invention, the Registrar may, if the applicant so requests, grant a patent for the improvement or modification as a patent of addition. (2) Subject to this section, where an invention, being an improvement in or modification of another invention, is the subject of an independent patent and the patentee in respect of that patent is also the patentee in respect of the patent for the main invention, the Registrar may, if the patentee so requests, by order revoke the patent for the improvement or modification and grant to the patentee a patent of addition in respect thereof, bearing the same date as the date of the patent so revoked. (3) A patent shall not be granted as a patent of addition unless the date of lodging of the complete specification was the same as or later than the date of lodging of the complete specification in respect of the main invention. (4) A patent of addition shall not be sealed before the sealing of the patent for the main invention and if the period within which, but for this provision, the sealing of a patent of addition could be made under section twenty-one expires before the period within which the sealing of the patent for the main invention may be so made, the sealing of the patent of addition may be made at any time within the last-mentioned