Assignee
DONALDSON CO INC
US·1,227 granted patents·252 pending applications·58,393 citations·filing 1974–2025
Top patents by PatentIndex Score
1,479 records- 0199US11752460B2Filter cartridges; air cleaner assemblies; housings; features; components; and, methodsDONALDSON CO INC·Filed 2022·Granted Sep 12, 2023·9 cites·25 claims
- 0299US11298643B2Filter cartridges; air cleaner assemblies; housings; features; components; and, methodsDONALDSON CO INC·Filed 2020·Granted Apr 12, 2022·20 cites·25 claims
- 0399US11207632B2Air filter arrangement; assembly; and, methodsDONALDSON CO INC·Filed 2020·Granted Dec 28, 2021·14 cites·30 claims
- 0499US11020699B2Air filter arrangement; assembly; and, methodsDONALDSON CO INC·Filed 2019·Granted Jun 1, 2021·19 cites·20 claims
- 0599US10967315B2Fine fiber media layerDONALDSON CO INC·Filed 2019·Granted Apr 6, 2021·29 cites·9 claims
- 0699US10864475B2Air filter arrangement; assembly; and, methodsDONALDSON CO INC·Filed 2018·Granted Dec 15, 2020·19 cites·30 claims
- 0799US10835850B2Filter assemblies; components and features thereof; and, methods of use and assemblyDONALDSON CO INC·Filed 2019·Granted Nov 17, 2020·17 cites·20 claims
- 0899US10610816B2Filter cartridges; air cleaner assemblies; housings; features; components; and, methodsDONALDSON CO INC·Filed 2018·Granted Apr 7, 2020·25 cites·20 claims
- 0999US10556201B2Air filter arrangement; assembly; and, methodsDONALDSON CO INC·Filed 2017·Granted Feb 11, 2020·24 cites·19 claims
- 1099US10427083B2Air filter arrangement; assembly; and methodsDONALDSON CO INC·Filed 2016·Granted Oct 1, 2019·28 cites·19 claims
- 1199US10421034B2Air filter arrangement; assembly; and, methodsDONALDSON CO INC·Filed 2019·Granted Sep 24, 2019·30 cites·30 claims
- 1299US10315144B2Air filter arrangement; assembly; and, methodsDONALDSON CO INC·Filed 2016·Granted Jun 11, 2019·39 cites·20 claims
- 1399US10258913B2Filter assemblies; components and features thereof; and, methods of use and assemblyDONALDSON CO INC·Filed 2016·Granted Apr 16, 2019·29 cites·18 claims
- 1499US10065145B2Air filter arrangement; assembly; and, methodsDONALDSON CO INC·Filed 2015·Granted Sep 4, 2018·27 cites·6 claims
- 1599US10046260B2Air filter cartridges; air cleaner assemblies; housings; features; components; and, methodsDONALDSON CO INC·Filed 2016·Granted Aug 14, 2018·43 cites·22 claims
- 1699US10029198B2Assemblies; components and filter features thereof; and, methods of use and assemblyDONALDSON CO INC·Filed 2016·Granted Jul 24, 2018·26 cites·22 claims
- 1799US9795911B2Air filter arrangement; assembly; and, methodsDONALDSON CO INC·Filed 2014·Granted Oct 24, 2017·41 cites·10 claims
- 1899US9527023B2Air filter arrangement; assembly; and, methodsDONALDSON CO INC·Filed 2014·Granted Dec 27, 2016·62 cites·20 claims
- 1999US9399972B2Air filter arrangement; assembly; and, methodsDONALDSON CO INC·Filed 2014·Granted Jul 26, 2016·62 cites·21 claims
- 2099US9387425B2Filter assemblies; components and features thereof; and, methods of use and assemblyDONALDSON CO INC·Filed 2014·Granted Jul 12, 2016·42 cites·20 claims
- 2199US9320997B2Air filter cartridges; air cleaner assemblies; housings; features; components; and, methodsDONALDSON CO INC·Filed 2015·Granted Apr 26, 2016·98 cites·20 claims
- 2299US9180399B2Air filter arrangementDONALDSON CO INC·Filed 2014·Granted Nov 10, 2015·80 cites·16 claims
- 2399US8808417B2Air cleaner arrangements; serviceable filter elements; and, methodsDONALDSON CO INC·Filed 2013·Granted Aug 19, 2014·33 cites·30 claims
- 2499US8366797B2Fine fiber media layerDONALDSON CO INC·Filed 2011·Granted Feb 5, 2013·58 cites·14 claims
- 2599US8357219B2Air filter arrangement; assembly and methodsDONALDSON CO INC·Filed 2006·Granted Jan 22, 2013·108 cites·27 claims
- 2699US8029588B2Fine fiber media layerDONALDSON CO INC·Filed 2010·Granted Oct 4, 2011·38 cites·7 claims
- 2799US7993422B2Filter elements; air cleaner; assembly; and, methodsDONALDSON CO INC·Filed 2010·Granted Aug 9, 2011·83 cites·19 claims
- 2899US7988757B2Air cleaner; replaceable filter cartridges; and, methodsDONALDSON CO INC·Filed 2010·Granted Aug 2, 2011·59 cites·18 claims
- 2999US7972405B2Air cleaner arrangements; serviceable filter elements; and, methodsDONALDSON CO INC·Filed 2010·Granted Jul 5, 2011·72 cites·17 claims
- 3099US7682416B2Air cleaner arrangements; serviceable filter elements; and, methodsDONALDSON CO INC·Filed 2005·Granted Mar 23, 2010·149 cites·6 claims
- 3199US7674308B2Filter elements; air cleaner; assembly; and methodsDONALDSON CO INC·Filed 2005·Granted Mar 9, 2010·208 cites·31 claims
- 3299US7662203B2Air cleaner; replaceable filter cartridges; and, methodsDONALDSON CO INC·Filed 2006·Granted Feb 16, 2010·118 cites·18 claims
- 3399US7645310B2Filter elements; air cleaner; assembly; and, methodsDONALDSON CO INC·Filed 2009·Granted Jan 12, 2010·88 cites·27 claims
- 3499US7625419B2Air filter arrangement; assembly; and, methodsDONALDSON CO INC·Filed 2007·Granted Dec 1, 2009·244 cites·39 claims
- 3599US7569090B2Method of forming filter arrangements; and, apparatusDONALDSON CO INC·Filed 2005·Granted Aug 4, 2009·79 cites·6 claims
- 3699US7537631B2Filter cartridges; air cleaners; and methodsDONALDSON CO INC·Filed 2005·Granted May 26, 2009·145 cites·25 claims
- 3799US7524349B2Air cleaner; air filter cartridge and method of manufacturingDONALDSON CO INC·Filed 2006·Granted Apr 28, 2009·141 cites·27 claims
- 3899US7491254B2Filter elements; air cleaner; assembly; and, methodsDONALDSON CO INC·Filed 2006·Granted Feb 17, 2009·125 cites·13 claims
- 3999US7396375B2Air filter having fluted filter mediaDONALDSON CO INC·Filed 2003·Granted Jul 8, 2008·237 cites·40 claims
- 4099US7396376B2Seal arrangement for filter element; filter element assembly; and, methodsDONALDSON CO INC·Filed 2004·Granted Jul 8, 2008·208 cites·22 claims
- 4199US7393375B2Filter element having sealing members and methodsDONALDSON CO INC·Filed 2006·Granted Jul 1, 2008·72 cites·15 claims
- 4299US7351270B2Air cleaner arrangements; serviceable filter elements; and, methodsDONALDSON CO INC·Filed 2004·Granted Apr 1, 2008·214 cites·20 claims
- 4399US7318852B2Bag house filter with fine fiber and spun bonded mediaDONALDSON CO INC·Filed 2006·Granted Jan 15, 2008·109 cites·59 claims
- 4499US7316723B2Air filter with fine fiber and spun bonded mediaDONALDSON CO INC·Filed 2006·Granted Jan 8, 2008·155 cites·16 claims
- 4599US7270692B2Air filtration arrangements having fluted media constructions and methodsDONALDSON CO INC·Filed 2006·Granted Sep 18, 2007·88 cites·24 claims
- 4699US7211124B2Filter element, air cleaner, and methodsDONALDSON CO INC·Filed 2006·Granted May 1, 2007·174 cites·16 claims
- 4799US7179317B2Polymer, polymer microfiber, polymer nanofiber and applications including filter structuresDONALDSON CO INC·Filed 2004·Granted Feb 20, 2007·122 cites·102 claims
- 4899US7090715B2Polymer, polymer microfiber, polymer nanofiber and applications including filter structuresDONALDSON CO INC·Filed 2003·Granted Aug 15, 2006·127 cites·15 claims
- 4999US7090712B2Air filtration arrangements having fluted media construction and methodsDONALDSON CO INC·Filed 2005·Granted Aug 15, 2006·89 cites·31 claims
- 5099US7070642B2Air cleaner; replaceable filter cartridges; and, methodsDONALDSON CO INC·Filed 2003·Granted Jul 4, 2006·189 cites·18 claims
Showing the top 50 of 1,479 patent records by PatentIndex Score.
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