(19)

(11)

EP 0 938 586 A1

(12)

(43) Date of publication: 01.09.1999 Bulletin 1999/35 (21) Application number: 97952171.0 (22) Date of filing: 28.10.1997

(51) International Patent Classification (IPC):  G01N 33/ 542( . ) G01N 33/ 68( . ) G01N 33/ 573( . ) (86) International application number: PCT/US1997/019570 (87) International publication number: WO 1998/018956 (07.05.1998 Gazette 1998/18)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IE IT LI NL SE (30) Priority: 28.10.1996 US 19960029831P (71) Applicant: Panvera Corporation Madison, WI 53711 (US)	(72) Inventors: BURKE, Thomas, J. Madison, WI 53719 (US) BOLGER, Randall, E. Oregon, WI 53575 (US) PARKER, Gregory Middleton, WI 53715 (US) SCHALL, Rebecca, P. Madison, WI 53719 (US) (74) Representative: Van Someren, Petronella F. H. M., et al  Arnold & Siedsma, Advocaten en Octrooigemachtigden, Sweelinckplein 1 2517 GK Den Haag 2517 GK Den Haag (NL)