(19)

(11)

EP 0 625 005 A1

(12)

(43) Date of publication: 23.11.1994 Bulletin 1994/47 (21) Application number: 93904786.0 (22) Date of filing: 29.01.1993

(51) International Patent Classification (IPC):  A01H 5/ 00( . ) C12N 9/ 04( . ) C12N 15/ 82( . ) C12N 9/ 02( . ) C12N 15/ 00( . ) (86) International application number: PCT/US1993/000869 (87) International publication number: WO 1993/015599 (19.08.1993 Gazette 1993/20)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 31.01.1992 US 19920833839 (71) Applicant: CORNELL RESEARCH FOUNDATION, INC. Ithaca, NY 14850 (US)	(72) Inventor: STEFFENS, John, C. Ithaca, NY 14850 (US) (74) Representative: Rackham, Anthony Charles  Lloyd Wise, Tregear & Co. Norman House 105-109 Strand London WC2R 0AE London WC2R 0AE (GB)