(19)

(11)

EP 0 218 680 A1

(12)

(43) Date of publication: 22.04.1987 Bulletin 1987/17 (21) Application number: 86902643.0 (22) Date of filing: 02.04.1986

(51) International Patent Classification (IPC):  G01N 33/ 543( . ) (86) International application number: PCT/US1986/000668 (87) International publication number: WO 1986/006170 (23.10.1986 Gazette 1986/23)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 10.04.1985 US 19850721589 (71) Applicant: IMMUNICON CORPORATION Huntington Valley, PA 19006 (US)	(72) Inventor: LIBERTI, Paul, A. Churchville, PA 18966 (US) (74) Representative: Hale, Stephen Geoffrey, et al  J.Y. & G.W. Johnson Furnival House 14/18 High Holborn London WC1V 6DE London WC1V 6DE (GB)