(19)

(11)

EP 0 807 163 A1

(12)

(43) Date of publication: 19.11.1997 Bulletin 1997/47 (21) Application number: 95938002.0 (22) Date of filing: 07.12.1995

(51) International Patent Classification (IPC):  C12M 1/ 00( . ) C12M 1/ 38( . ) C12M 1/ 04( . ) C12N 1/ 12( . ) (86) International application number: PCT/IB1995/001100 (87) International publication number: WO 1996/023865 (08.08.1996 Gazette 1996/36)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 02.02.1995 CH 19950000280 (71) Applicant: Alga Development N.V. 6901 Lugano (CH)	(72) Inventors: CURTI, Paolo 6514 Sementina (CH) PEDRETTI, Mauro 6900 Lugano (CH) (74) Representative: Fiammenghi-Domenighetti, Delfina, et al  Fiammenghi-Fiammenghi, Via San Gottardo 15 6900 Lugano 6900 Lugano (CH)