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(11)

EP 0 688 168 A1

(12)

(43) Date of publication: 27.12.1995 Bulletin 1995/52 (21) Application number: 94907404.0 (22) Date of filing: 02.02.1994

(51) International Patent Classification (IPC):  A61K 38/ 00( . ) A61K 38/ 20( . ) (86) International application number: PCT/US1994/001179 (87) International publication number: WO 1994/019944 (15.09.1994 Gazette 1994/21)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 10.03.1993 US 19930029040 (71) Applicant: EMBREX, INC. Research Triangle Park, NC 27709-3989 (US)	(72) Inventors: RICKS, Catherine, A. Raleigh, NC 27603 (US) PHELPS, Patricia, V. Raleigh, NC 27608 (US) (74) Representative: Horner, Martin Grenville, et al  Cruikshank & Fairweather 19 Royal Exchange Square Glasgow G1 3AE Scotland Glasgow G1 3AE Scotland (GB)