(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)
7
:
B01D
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