Patents Act 1977: Examining for Patentability (29 July 2005)
Handling Patent Applications for Excluded Subject Matter (8 February 2002)
Patents Act 1977: interpreting section 1(2) (24 April 2002)
Claims to Programs for computers (19 April 1999)Other Practice Notices on the question of patentable subject matter still stand save as follows:
Patentability of games (25 November 2005): Paragraph 4 is superseded by the present Notice. The rest of this Notice, which explained the comptroller would no longer rely on the Official Ruling 1926(A), still stands.