(19)

(11)

EP 0 894 090 A1

(12)

(43) Date of publication: 03.02.1999 Bulletin 1999/05 (21) Application number: 96913496.0 (22) Date of filing: 09.04.1996

(51) International Patent Classification (IPC):  C12N 9/ 26( . ) (86) International application number: PCT/EP1996/001523 (87) International publication number: WO 1997/038006 (16.10.1997 Gazette 1997/44)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (71) Applicant: Wilchap I Limited Grimsby, DN31 1HE (GB)	(72) Inventor: KRISHNAPILLAI, Ashok, Meluttukezhakethiel Cheltenham, Gloucestershire GL51 8PA (GB) (74) Representative: Gowshall, Jonathan Vallance  FORRESTER & BOEHMERT Franz-Joseph-Strasse 38 80801 München 80801 München (DE)