(19)

(11)

EP 1 534 866 A2

(12)

(88) Date of publication A3: 29.07.2004 (43) Date of publication: 01.06.2005 Bulletin 2005/22 (21) Application number: 03749098.4 (22) Date of filing: 13.08.2003

(51) International Patent Classification (IPC)7: C13D 3/00, C13D 3/02, C13D 3/04, C13D 3/06, C13D 3/16 (86) International application number: PCT/US2003/026209 (87) International publication number: WO 2004/015144 (19.02.2004 Gazette 2004/08)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 13.08.2002 US 403594 P (71) Applicant: CO2 Solutions, LLC Fort Collins, CO 80524 (US)	(72) Inventor: SANDERS, David, O. Loveland, CO 80538 (US) (74) Representative: Molyneaux, Martyn William  Harrison Goddard Foote40-43 Chancery Lane London WC2A 1JA London WC2A 1JA (GB)