Inventor
HACKER JOHN
US21 patents
⚠️ This page may combine multiple inventors who share the name “HACKER JOHN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DONALDSON CO INC
18 patentsUS6322602B2Nov 27, 2001
Reverse flow air filter arrangement
DONALDSON CO INC118 citations98
US6004366ADec 21, 1999
Reverse flow air filter arrangement and method
DONALDSON CO INC95 citations98
US5897676AApr 27, 1999
Reverse flow air filter arrangement and method
DONALDSON CO INC299 citations98
US5938804AAug 17, 1999
Reverse flow air filter arrangement and method
DONALDSON CO INC117 citations96
US6521009B2Feb 18, 2003
Reverse flow air filter arrangement and method
DONALDSON CO INC65 citations95
US6413289B2Jul 2, 2002
Reverse flow air filter arrangement
DONALDSON CO INC76 citations95
US6258145B1Jul 10, 2001
Reverse flow air filter arrangement
DONALDSON CO INC74 citations95
US7455707B2Nov 25, 2008
Reverse flow air filter arrangement and method
DONALDSON CO INC27 citations90
US11491423B2Nov 8, 2022
Filter cartridge for liquid filtration; assembly; and, methods
DONALDSON CO INC4 citations84
US10646803B2May 12, 2020
Liquid filter arrangement and methods
DONALDSON CO INC4 citations80
US10758847B2Sep 1, 2020
Filter cartridge for liquid filteration; assembly; and, methods
DONALDSON CO INC1 citations73
US9895632B2Feb 20, 2018
Filter cartridges for liquid filtration; assembly; and, methods
DONALDSON CO INC2 citations73
US10493386B2Dec 3, 2019
Liquid filter arrangement; components; and, methods
DONALDSON CO INC2 citations71
US11944925B2Apr 2, 2024
Liquid filter arrangement; components; and, methods
DONALDSON CO INC0 citations61
US11207621B2Dec 28, 2021
Liquid filter arrangement; components; and, methods
DONALDSON CO INC0 citations61
US9751033B2Sep 5, 2017
Liquid filter arrangement; components; and, methods
DONALDSON CO INC1 citations61
US11673082B2Jun 13, 2023
Liquid filter arrangements and methods
DONALDSON CO INC0 citations59
USD425977SMay 30, 2000
Inside surface of a filter element having insert construction
DONALDSON CO INC4 citations59