(19)

(11)

EP 1 274 995 A1

(12)

(43) Date of publication: 15.01.2003 Bulletin 2003/03 (21) Application number: 01912005.4 (22) Date of filing: 21.03.2001

(51) International Patent Classification (IPC)7: G01N 33/487 (86) International application number: PCT/GB0101/238 (87) International publication number: WO 0107/1349 (27.09.2001 Gazette 2001/39)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 21.03.2000 GB 0006748 (71) Applicant: Xention Discovery Limited HistonCambridge CB4 9ZR (GB)	(72) Inventors: NORWOOD, James Henry HistonCambridge CB4 9ZR (GB) OWEN, David Geraint HistonCambridge CB4 9ZR (GB) PIOTROWSKI, Voi HistonCambridge CB4 9ZR (GB) (74) Representative: Davies, Jonathan Mark  Reddie & Grose16 Theobalds Road London WC1X 8PL London WC1X 8PL (GB)