(19)

(11)

EP 1 014 778 A1

(12)

(43) Date of publication: 05.07.2000 Bulletin 2000/27 (21) Application number: 98903911.0 (22) Date of filing: 05.02.1998

(51) International Patent Classification (IPC)7: A01H 1/00, A01H 1/02, A01H 1/04, A01H 1/08, A01G 7/00 (86) International application number: PCT/US9802/034 (87) International publication number: WO 9833/374 (06.08.1998 Gazette 1998/31)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 05.02.1997 US 3721 P (71) Applicant: UTAH STATE UNIVERSITY North Logan, UT 84341 (US)	(72) Inventor: CARMAN, John, G. Smithfield, UT 84335 (US) (74) Representative: Thomson, Paul Anthony  Potts, Kerr & Co.15, Hamilton Square BirkenheadMerseyside L41 6BR BirkenheadMerseyside L41 6BR (GB)