Inventor · disambiguated record
John R. Hacker
Also filed as: HACKER JOHN · HACKER JOHN R
74 granted patents·22 pending applications·2,168 citations·filing 1978–2024
99Inventor score
Files withDONALDSON CO INC56HACKER JOHN R9CATERPILLAR INC7SALVADOR CHRISTOPHER J6HONERMANN BRADLEY S3
Top patents by PatentIndex Score
96 records- 0199US5897676AReverse flow air filter arrangement and methodDONALDSON CO INC·Filed 1998·Granted Apr 27, 1999·299 cites·19 claims
- 0298US11491423B2Filter cartridge for liquid filtration; assembly; and, methodsDONALDSON CO INC·Filed 2020·Granted Nov 8, 2022·4 cites·14 claims
- 0398US8272516B2Fluid filter systemSALVADOR CHRISTOPHER J·Filed 2007·Granted Sep 25, 2012·520 cites·30 claims
- 0498US7160451B2Liquid filter assembly for use with treatment agent and methodsDONALDSON CO INC·Filed 2005·Granted Jan 9, 2007·82 cites·12 claims
- 0598US6322602B2Reverse flow air filter arrangementDONALDSON CO INC·Filed 2001·Granted Nov 27, 2001·118 cites·10 claims
- 0697US8167142B2Filter cartridge for liquid filtration; assembly; and, methodsHACKER JOHN R·Filed 2005·Granted May 1, 2012·43 cites·6 claims
- 0797US6413289B2Reverse flow air filter arrangementDONALDSON CO INC·Filed 2001·Granted Jul 2, 2002·76 cites·20 claims
- 0896US11400394B2Spin-on filter with external threads and methodsDONALDSON CO INC·Filed 2021·Granted Aug 2, 2022·2 cites·19 claims
- 0996US10010817B2Top load liquid filter assembly, system, and methodsDONALDSON CO INC·Filed 2015·Granted Jul 3, 2018·11 cites·14 claims
- 1096US9776116B2Liquid filter, assembly, system, and methodsDONALDSON CO INC·Filed 2015·Granted Oct 3, 2017·14 cites·15 claims
- 1196US6004366AReverse flow air filter arrangement and methodDONALDSON CO INC·Filed 1998·Granted Dec 21, 1999·95 cites·17 claims
- 1295US8419938B2Fluid filter systemRIES JEFFREY R·Filed 2010·Granted Apr 16, 2013·24 cites·13 claims
- 1395US6521009B2Reverse flow air filter arrangement and methodDONALDSON CO INC·Filed 2001·Granted Feb 18, 2003·65 cites·38 claims
- 1494US10702814B2Top load liquid filter assembly, system, and methodsDONALDSON CO INC·Filed 2018·Granted Jul 7, 2020·5 cites·11 claims
- 1594US6258145B1Reverse flow air filter arrangementDONALDSON CO INC·Filed 1999·Granted Jul 10, 2001·74 cites·17 claims
- 1694US5938804AReverse flow air filter arrangement and methodDONALDSON CO INC·Filed 1997·Granted Aug 17, 1999·117 cites·14 claims
- 1793US11344829B2Spin-on filter with external threads and methodsDONALDSON CO INC·Filed 2020·Granted May 31, 2022·2 cites·10 claims
- 1893US7628280B2Liquid filter arrangement; components; and methodsDONALDSON CO INC·Filed 2006·Granted Dec 8, 2009·23 cites·7 claims
- 1993US2025135383A1Spin-on filter with external threads and methodsDONALDSON CO INC·Filed 2024·Application pending·0 cites
- 2092US10179303B2Top load liquid filter assembly, system, and methodsDONALDSON CO INC·Filed 2018·Granted Jan 15, 2019·4 cites·7 claims
- 2191US10092868B2Liquid filter assembly, system and methodsDONALDSON CO INC·Filed 2015·Granted Oct 9, 2018·5 cites·8 claims
- 2291US7955502B2Liquid filter arrangement and methodsDONALDSON CO INC·Filed 2009·Granted Jun 7, 2011·20 cites·10 claims
- 2390US9555347B2Spin-on filter with external threads and methodsTUCKER BRIAN·Filed 2009·Granted Jan 31, 2017·13 cites·16 claims
- 2490US8501003B2Canister filter system with drain that cooperates with filter elementALLOTT MARK T·Filed 2010·Granted Aug 6, 2013·11 cites·23 claims
- 2590US8453848B2Filter cartridge for liquid filtration; assembly; and, methodsHACKER JOHN·Filed 2011·Granted Jun 4, 2013·10 cites·28 claims
- 2690US8231793B2Combination filter arrangement and methodHACKER JOHN R·Filed 2009·Granted Jul 31, 2012·21 cites·15 claims
- 2790US7238285B2Liquid filter assembly for use with treatment agent; and, methodsDONALDSON CO INC·Filed 2005·Granted Jul 3, 2007·14 cites·19 claims
- 2889US10646803B2Liquid filter arrangement and methodsDONALDSON CO INC·Filed 2015·Granted May 12, 2020·4 cites·16 claims
- 2989US9132367B2Liquid filter assembly, system and methodsHONERMANN BRADLEY S·Filed 2010·Granted Sep 15, 2015·11 cites·22 claims
- 3088US10493386B2Liquid filter arrangement; components; and, methodsDONALDSON CO INC·Filed 2017·Granted Dec 3, 2019·2 cites·18 claims
- 3188US9545587B2Spin-on filter with external threads and methodsTUCKER BRIAN·Filed 2009·Granted Jan 17, 2017·11 cites·13 claims
- 3288US8123937B2Liquid filter arrangement and methodsHACKER JOHN R·Filed 2008·Granted Feb 28, 2012·13 cites·26 claims
- 3387US7662284B2Liquid filter arrangement and methodsDONALDSON CO INC·Filed 2005·Granted Feb 16, 2010·13 cites·25 claims
- 3487US6384369B1Liquid filter construction and methodsDONALDSON CO INC·Filed 2000·Granted May 7, 2002·47 cites·5 claims
- 3586US7455707B2Reverse flow air filter arrangement and methodDONALDSON CO INC·Filed 2003·Granted Nov 25, 2008·27 cites·67 claims
- 3686US6322697B1Oil filter assemblyDONALDSON CO INC·Filed 1999·Granted Nov 27, 2001·72 cites·14 claims
- 3785US9120041B2Liquid filter arrangement and methodsGRECO ENRICO·Filed 2013·Granted Sep 1, 2015·6 cites·22 claims
- 3884US12186689B2Spin-on filter with external threads and methodsDONALDSON CO INC·Filed 2022·Granted Jan 7, 2025·0 cites·19 claims
- 3984US10758847B2Filter cartridge for liquid filteration; assembly; and, methodsDONALDSON CO INC·Filed 2017·Granted Sep 1, 2020·1 cites·16 claims
- 4084US8821724B2Liquid filter arrangement; components; and, methodsMANDT BRIAN·Filed 2012·Granted Sep 2, 2014·4 cites·19 claims
- 4184US8535530B2Liquid filter arrangement; components; and, methodsMANDT BRIAN·Filed 2008·Granted Sep 17, 2013·9 cites·9 claims
- 4284US8440079B2Liquid filter arrangements and methodsGRECO ENRICO·Filed 2011·Granted May 14, 2013·5 cites·14 claims
- 4383US12168191B2Spin-on filter with external threads and methodsDONALDSON CO INC·Filed 2022·Granted Dec 17, 2024·0 cites·14 claims
- 4483US10046256B2Spin-on filter with external threads and methodsDONALDSON CO INC·Filed 2016·Granted Aug 14, 2018·1 cites·11 claims
- 4583US4138181AReleasable electrical connectorUS NAVY·Filed 1978·Granted Feb 6, 1979·44 cites·12 claims
- 4682USD648822SFuel filterSALVADOR CHRISTOPHER J·Filed 2010·Granted Nov 15, 2011·23 cites·1 claims
- 4781US9895632B2Filter cartridges for liquid filtration; assembly; and, methodsDONALDSON CO INC·Filed 2014·Granted Feb 20, 2018·2 cites·21 claims
- 4881US8877053B2Liquid filter arrangement and methodsDONALDSON CO INC·Filed 2013·Granted Nov 4, 2014·3 cites·7 claims
- 4981US7886610B2Differential pressure gauge for filterDONALDSON CO INC·Filed 2005·Granted Feb 15, 2011·14 cites·21 claims
- 5080US11944925B2Liquid filter arrangement; components; and, methodsDONALDSON CO INC·Filed 2021·Granted Apr 2, 2024·0 cites·4 claims
Showing the top 50 of 96 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →