(19)
(11) EP 3 506 997 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:
23.08.2023 Bulletin 2023/34

(45) Mention of the grant of the patent:
07.06.2023 Bulletin 2023/23

(21) Application number: 17851593.8

(22) Date of filing: 15.09.2017
(51) International Patent Classification (IPC): 
B01D 61/14(2006.01)
B01D 61/22(2006.01)
C02F 1/44(2023.01)
C02F 1/34(2023.01)
 B01D 61/18(2006.01)
C02F 103/04(2006.01)
B01D 63/02(2006.01)
C02F 1/72(2023.01)
(52) Cooperative Patent Classification (CPC):
B01D 61/18; B01D 61/22; B01D 63/02; B01D 2311/25; B01D 2313/50; C02F 2103/04; C02F 2209/03; C02F 2301/046; C02F 1/444; C02F 1/34; C02F 2209/005; C02F 1/725; C02F 2209/02; C02F 2209/40
(86) International application number:
PCT/US2017/051763
(87) International publication number:
WO 2018/053253 (22.03.2018 Gazette 2018/12)

(54)

METHOD AND SYSTEM FOR TREATING ULTRAPURE WATER

VERFAHREN UND SYSTEM ZUR BEHANDLUNG VON ULTRAREINEM WASSER

PROCÉDÉ ET SYSTÈME DE TRAITEMENT D'EAU ULTRA-PURE

(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 15.09.2016 US 201662394788 P
16.12.2016 US 201662435119 P

(43) Date of publication of application:
10.07.2019 Bulletin 2019/28

(73) Proprietor: Evoqua Water Technologies LLC
Pittsburgh, PA 15086 (US)

(72) Inventors:
  • ELIOSOV, Boris
    St. Marys, Pennsylvania 15857 (US)
  • SUNDSTROM, Glen P.
    Rockford, Illinois 61103 (US)
  • COULTER, Bruce L.
    Rockford, Illinois 61103 (US)

(74) Representative: Murgitroyd & Company 
Murgitroyd House 165-169 Scotland Street
Glasgow G5 8PL
Glasgow G5 8PL (GB)


(56) References cited: : 
WO-A1-97/39981
US-A- 5 536 403
US-A1- 2002 043 487
US-A1- 2011 315 632
US-A1- 2015 037 319
 US-A- 5 124 033
US-A- 5 536 403
US-A1- 2006 011 546
US-A1- 2014 102 990
   
  • Tetsuo Mizuniwa ET AL: "IMPROVEMENT OF ULTRAPURE WATER QUALITY -REDUCTION OF PARTICLES", Proceedings of the Symposium on Nickel Hydroxide Electrodes, vol. 90, 1 January 1990 (1990-01-01), pages 173-180, XP055771380,
   
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).