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Privy Council Wellington
Appeal No 32 of 2001
6, 28 February 2002
Lord Steyn, Lord Hoffmann, Lord Millett, Lord Rodger of Earlsferry and Sir Christopher Slade
Appeal No 32 of 2001
6, 28 February 2002
Lord Steyn, Lord Hoffmann, Lord Millett, Lord Rodger of Earlsferry and Sir Christopher Slade
Patents — Revocation — Obviousness — Test for obviousness — Determining the inventive step — Whether to be determined by reference solely to scientific knowledge — Importance of market developments — Patents Act 1953, s 41(1)(e) and 41(1)(f).