(19)

(11)

EP 0 770 124 A1

(12)

(43) Date of publication: 02.05.1997 Bulletin 1997/18 (21) Application number: 95917457.0 (22) Date of filing: 22.05.1995

(51) International Patent Classification (IPC):  C12C 3/ 12( . ) (86) International application number: PCT/IB1995/000394 (87) International publication number: WO 1996/000774 (11.01.1996 Gazette 1996/03)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 28.06.1994 US 19940267336 (71) Applicant: Cultor Ltd. 00240 Helsinki (FI)	(72) Inventor: HAY, Bruce A. Groton, CT 06340 (US) (74) Representative: Patentanwälte Zellentin & Partner  Zweibrückenstrasse 15 80331 München 80331 München (DE)