(19)
(11) EP 4 370 227 A1

(12)

(43) Date of publication:
22.05.2024 Bulletin 2024/21

(21) Application number: 22765265.8

(22) Date of filing: 11.07.2022
(51) International Patent Classification (IPC): 
B01D 15/32(2006.01)
B01J 20/282(2006.01)
B01J 20/287(2006.01)
 B01J 20/28(2006.01)
B01J 20/285(2006.01)
B01J 20/289(2006.01)
(52) Cooperative Patent Classification (CPC):
B01D 15/327; B01D 71/10; B01D 67/00931; B01D 2325/38; B01D 2323/21835; B01D 69/147
(86) International application number:
PCT/US2022/036711
(87) International publication number:
WO 2023/287718 (19.01.2023 Gazette 2023/03)
(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
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 12.07.2021 US 202163203196 P
12.05.2022 US 202217742956

(71) Applicant: Donaldson Company, Inc.
Bloomington, MN 55431 (US)

(72) Inventors:
  • ZHOU, Jinxiang
    Bloomington, Minnesota 55431 (US)
  • TEMPLES, Graham
    Bloomington, Minnesota 55431 (US)
  • GUO, Bin
    Bloomington, Minnesota 55431 (US)

(74) Representative: Potter Clarkson 
Chapel Quarter Mount Street
Nottingham NG1 6HQ
Nottingham NG1 6HQ (GB)

   


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