(19)

(11)

EP 0 713 423 A1

(12)

(43) Date of publication: 29.05.1996 Bulletin 1996/22 (21) Application number: 94925877.0 (22) Date of filing: 12.08.1994

(51) International Patent Classification (IPC):  C12N 15/ 09( . ) B01J 20/ 26( . ) B01J 47/ 00( . ) C07K 17/ 10( . ) B01J 20/ 20( . ) B01J 20/ 32( . ) C07K 17/ 08( . ) (86) International application number: PCT/US1994/009187 (87) International publication number: WO 1995/005240 (23.02.1995 Gazette 1995/09)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 13.08.1993 US 19930106415 (71) Applicant: Allen, Richard G. Portland, OR 97201 (US)	(72) Inventor: Allen, Richard G. Portland, OR 97201 (US) (74) Representative: Thomson, Paul Anthony  Potts, Kerr & Co. 15, Hamilton Square Birkenhead Merseyside L41 6BR Birkenhead Merseyside L41 6BR (GB)