(19)
(11) EP 1 406 711 A2

(12)

(88) Date of publication A3:
15.01.2004

(43) Date of publication:
14.04.2004 Bulletin 2004/16

(21) Application number: 00967147.0

(22) Date of filing: 28.09.2000
(51) International Patent Classification (IPC)7B01D 1/00
(86) International application number:
PCT/US2000/026925
(87) International publication number:
WO 2002/026340 (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
Designated Extension States:
RO

(71) Applicant: Yoon, Roe-Hoan
Blacksburg, VA 24060 (US)

(72) Inventor:
  • Yoon, Roe-Hoan
    Blacksburg, VA 24060 (US)

(74) Representative: Kierdorf, Theodor, Dipl.-Ing. 
PatentanwälteLippert, Stachow, Schmidt & PartnerFrankenforster Strasse 135-137
51427 Bergisch Gladbach
51427 Bergisch Gladbach (DE)

   


(54) METHODS OF USING NATURAL PRODUCTS AS DEWATERING AIDS FOR FINE PARTICLES