(19)

(11)

EP 0 795 016 A1

(12)

(43) Date of publication: 17.09.1997 Bulletin 1997/38 (21) Application number: 95909083.0 (22) Date of filing: 23.02.1995

(51) International Patent Classification (IPC):  C12N 15/ 09( . ) C12N 15/ 00( . ) C12R 1/ 645( . ) C12N 9/ 00( . ) C12N 15/ 113( . ) (86) International application number: PCT/IB1995/000141 (87) International publication number: WO 1996/019577 (27.06.1996 Gazette 1996/29)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 22.12.1994 US 19940363774 (71) Applicant: Collins, Richard Toronto, Ontario M5A 4E1 (CA)	(72) Inventor: Collins, Richard Toronto, Ontario M5A 4E1 (CA) (74) Representative: Moon, Donald Keith, et al  BREWER & SON Quality House Quality Court Chancery Lane London WC2A 1HT London WC2A 1HT (GB)