(19)
(11) EP 1 894 612 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
19.02.2014 Bulletin 2014/08

(45) Mention of the grant of the patent:
02.10.2013 Bulletin 2013/40

(21) Application number: 07016973.5

(22) Date of filing: 30.08.2007
(51) International Patent Classification (IPC): 
B01D 61/02(2006.01)
 C02F 1/44(2006.01)

(54)

Method for purifying water by means of a membrane filtration unit

Verfahren zur Reinigung von Wasser über eine Membranfilterungseinheit

Procédé de purification d'eau au moyen d'une unité de filtration de membrane

(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

(30) Priority: 01.09.2006 NL 1032403

(43) Date of publication of application:
05.03.2008 Bulletin 2008/10

(73) Proprietor: Vitens Fryslân N.V.
8912 AA Leeuwarden (NL)

(72) Inventor:
  • Van der Meer, Walterus Gijsbertus Joseph
    8604 VM Sneek (NL)

(74) Representative: Algemeen Octrooi- en Merkenbureau B.V. 
P.O. Box 645
5600 AP Eindhoven
5600 AP Eindhoven (NL)


(56) References cited: : 
WO-A1-2005/068371
WO-A2-2005/012180
US-A- 3 906 250
US-A- 4 781 837
US-A1- 2004 188 348
 WO-A2-97/18166
NL-C2- 1 028 484
US-A- 4 156 645
US-A- 5 098 575
   
  • RAUTENBACH R: "Membranverfahren", 1 January 1997 (1997-01-01), MEMBRANVERFAHREN. GRUNDLAGEN DER MODUL- UND ANLAGENAUSLEGUNG, XX, XX, PAGE(S) 152 - 155, XP002508147, ISBN: 3-540-61573-3
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).