(19)

(11)

EP 1 345 871 A1

(12)

(43) Date of publication: 24.09.2003 Bulletin 2003/39 (21) Application number: 00958784.1 (22) Date of filing: 05.09.2000

(51) International Patent Classification (IPC)7: C05F 11/08, C12N 13/00, C12N 1/16, C12N 1/18 (86) International application number: PCT/GB0003/399 (87) International publication number: WO 0202/0431 (14.03.2002 Gazette 2002/11)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (71) Applicant: Ultra Biotech Limited Douglas IM1 1SA,Isle of Man (GB)	(72) Inventor: ZHANG, Lingyu Bethesda, MD 20817 (US) (74) Representative: Kyle, Diana  Elkington and FifeProspect House8 Pembroke Road Sevenoaks, Kent TN13 1XR Sevenoaks, Kent TN13 1XR (GB)