Section 72(2)

An application for the revocation of a patent on the ground mentioned in subsection (1)(b) above— may only be made by a person found by the court in an action for a declaration or declarator, or found by the court or the comptroller on a reference under section 37 above, to be entitled to be granted that patent or to be granted a patent for part of the matter comprised in the specification of the patent sought to be revoked; and may not be made if that action was commenced or that reference was made after the second anniversary of the date of the grant of the patent sought to be revoked, unless it is shown that any person registered as a proprietor of the patent knew at the time of the grant or of the transfer of the patent to him that he was not entitled to the patent.

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Source: legislation.gov.uk · retrieved 2026-09-04