This section applies if—
a patent for an invention (the main invention) has been applied for or granted; and
the applicant or patentee (or a person authorised by the applicant or patentee) applies for a further patent for an improvement in, or modification of, the main invention; and
the application for that further patent is made in the prescribed manner.
The Commissioner may, on the request of the applicant for the further patent, grant the patent for the improvement or modification as a patent of addition.
Compare: 1953 No 64 s 34(1); Patents Act 1990 s 81(1) (Aust)