(19)

(11)

EP 1 347 820 A1

(12)

(43) Date of publication: 01.10.2003 Bulletin 2003/40 (21) Application number: 01980058.0 (22) Date of filing: 30.10.2001

(51) International Patent Classification (IPC)7: B01D 57/02 (86) International application number: PCT/AU0101/393 (87) International publication number: WO 0203/6245 (10.05.2002 Gazette 2002/19)

(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: 30.10.2000 AU PR110100 (71) Applicant: GRADIPORE LIMITED Frenchs Forest, New South Wales 2086 (AU)	(72) Inventors: NAIR, Chemicheri, Hariharan Old greenwich, CT 06870 (US) GILBERT, Andrew, Mark Eastwood, NSW 2122 (AU) (74) Representative: Jump, Timothy John Simon et al Venner Shipley & Co. 20 Little Britain London EC1A 7DH London EC1A 7DH (GB)