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EP 1 730 390 A1

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(43) Date of publication: 13.12.2006 Bulletin 2006/50 (21) Application number: 05718046.5 (22) Date of filing: 16.03.2005

(51) International Patent Classification (IPC):  F01N 3/025(2006.01) F01N 3/027(2006.01) F01N 11/00(2006.01) F01N 3/035(2006.01) F01N 9/00(2006.01) (86) International application number: PCT/GB2005/000998 (87) International publication number: WO 2005/090759 (29.09.2005 Gazette 2005/39)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR (30) Priority: 16.03.2004 GB 0405897 26.11.2004 GB 0426060 (71) Applicant: Pyroban Ltd. West Sussex BN43 6QG (GB)

(72) Inventors: RATCLIFF, Ian H., Pyroban Ltd West Sussex BN43 6QG (GB) PARKER, John S., Pyroban Ltd West Sussex BN43 6QG (GB) TESTER, Nigel S., Pyroban Ltd West Sussex BN43 6QG (GB) HOLT, Marco, Pyroban Ltd West Sussex BN43 6QG (GB) NOAKES, Steve R., Pyroban Ltd West Sussex BN43 6QG (GB) (74) Representative: Roberts, Gwilym Vaughan  Kilburn & Strode 20 Red Lion Street London WC1R 4PJ London WC1R 4PJ (GB)