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(11)

EP 1 066 502 A1

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(43) Date of publication: 10.01.2001 Bulletin 2001/02 (21) Application number: 98915168.3 (22) Date of filing: 24.03.1998

(51) International Patent Classification (IPC)7: G01N 1/30, G01N 35/10 (86) International application number: PCT/US9805/919 (87) International publication number: WO 9949/295 (30.09.1999 Gazette 1999/39)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (71) Applicant: BIOGENEX LABORATORIES San RamonCalifornia 94583 (US)	(72) Inventors: KALRA, Krishan, L. Danville, CA 94506 (US) ZHANG, Jason, Z. San Jose, CA 95133 (US) CHANG, Zhi-Weng San Leandro, CA 94578 (US) SHUI, Jianghong San Jose, CA 95129 (US) (74) Representative: Baldock, Sharon Claire et al BOULT WADE TENNANT,Verulam Gardens70 Gray's Inn Road London WC1X 8BT London WC1X 8BT (GB)