(19)

(11)

EP 1 333 905 A1

(12)

(43) Date of publication: 13.08.2003 Bulletin 2003/33 (21) Application number: 00967227.0 (22) Date of filing: 28.09.2000

(51) International Patent Classification (IPC)7: B01D 37/02 (86) International application number: PCT/US0027/082 (87) International publication number: WO 0202/6350 (04.04.2002 Gazette 2002/12)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (71) Applicant: Roe-Hoan, Yoon Blacksburg, VA 24060 (US)	(72) Inventor: Roe-Hoan, Yoon Blacksburg, VA 24060 (US) (74) Representative: Kierdorf, Theodor, Dipl.-Ing.  PatentanwälteLippert, Stachow, Schmidt & PartnerFrankenforster Strasse 135-137 51427 Bergisch Gladbach 51427 Bergisch Gladbach (DE)