FLUID PURIFICATION DEVICES AND METHODS EMPLOYING DEIONIZATION FOLLOWED BY IONIZATION FOLLOWED BY DEIONIZATION - Patent 1027136

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EP 1 027 136 A1

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(43)	Date of publication:
	16.08.2000 Bulletin 2000/33

(21)	Application number: 98930414.2

(22)	Date of filing: 19.06.1998

(51)	International Patent Classification (IPC)⁷: B01D 61/00, B01D 15/00

(86)	International application number:
	PCT/US9812/823

(87)	International publication number:
	WO 9858/727 (30.12.1998 Gazette 1998/52)

(84)	Designated Contracting States:
	CH DE FR GB IT LI

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Priority:

20.06.1997 US 50376 P

(71)	Applicant: IONICS INCORPORATED
	WatertownMassachusetts 02172 (US)

(72)	Inventor:
	ZHANG, Li Westborough, MA 01581 (US)

(74)	Representative: Harvey, David Gareth et al
	Graham Watt & Co.Riverhead SevenoaksKent TN13 2BN SevenoaksKent TN13 2BN (GB)

(54)	FLUID PURIFICATION DEVICES AND METHODS EMPLOYING DEIONIZATION FOLLOWED BY IONIZATION FOLLOWED BY DEIONIZATION