(19)

(11)

EP 0 243 471 A1

(12)

(43) Date of publication: 04.11.1987 Bulletin 1987/45 (21) Application number: 86906659.0 (22) Date of filing: 22.10.1986

(51) International Patent Classification (IPC):  G01N 33/ 543( . ) G01N 33/ 58( . ) G01N 33/ 548( . ) G01N 33/ 76( . ) (86) International application number: PCT/US1986/002233 (87) International publication number: WO 1987/002778 (07.05.1987 Gazette 1987/10)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 22.10.1985 US 19850790054 (71) Applicant: COOPER-LIPOTECH, INC. Menlo Park, CA 94025 (US)	(72) Inventors: GUO, Luke Lafayette, CA 94549 (US) MICHAELS, Alan, S. Boston, MA 02116 (US) MARTIN, Francis, J. San Francisco, CA 94127 (US) WEINSHENKER, Ned, M. Palo Alto, CA 94301 (US) HUERTAS, Pedro Cambridge, MA 02140 (US) (74) Representative: Goldin, Douglas Michael  J.A. KEMP & CO. 14, South Square Gray's Inn London WC1R 5LX London WC1R 5LX (GB)