In section 5 of the Patents Act 1977 (priority date), in subsection (5), after paragraph (a) insert—

“(aa)

an application in or for a country (other than the United Kingdom) which is a member of the World Trade Organisation for protection in respect of an invention which, in accordance with the law of that country or a treaty or international obligation to which it is a party, is equivalent to an application for a patent under this Act;”.