(19)

(11)

EP 1 173 052 A2

(12)

(88) Date of publication A3: 04.10.2001 (43) Date of publication: 23.01.2002 Bulletin 2002/04 (21) Application number: 00928226.0 (22) Date of filing: 20.04.2000

(51) International Patent Classification (IPC)7: A01G 9/02 (86) International application number: PCT/US0010/591 (87) International publication number: WO 0064/253 (02.11.2000 Gazette 2000/44)

(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 (30) Priority: 23.04.1999 US 299056 (71) Applicant: Greentech, Inc. Richmond, Virginia 23294 (US)	(72) Inventors: RIPLEY, Thomas, J., Sr. Chalfont, PA 18914 (US) CATALDO, Stephen, A. Chalfont, PA 18914 (US) SCOTT, Christopher Richmont, VA 23229 (US) (74) Representative: Smith, Norman Ian et al fJ CLEVELAND 40-43 Chancery Lane London WC2A 1JQ London WC2A 1JQ (GB)