Inventor · disambiguated record
David B. Harder
Also filed as: HARDER DAVID B
22 granted patents·10 pending applications·740 citations·filing 2000–2024
96Inventor score
Top patents by PatentIndex Score
32 records- 0198US8272516B2Fluid filter systemSALVADOR CHRISTOPHER J·Filed 2007·Granted Sep 25, 2012·520 cites·30 claims
- 0296US10744431B2Liquid filter arrangement and methodsDONALDSON CO INC·Filed 2017·Granted Aug 18, 2020·10 cites·21 claims
- 0395US8419938B2Fluid filter systemRIES JEFFREY R·Filed 2010·Granted Apr 16, 2013·24 cites·13 claims
- 0490US8501003B2Canister filter system with drain that cooperates with filter elementALLOTT MARK T·Filed 2010·Granted Aug 6, 2013·11 cites·23 claims
- 0587US6384369B1Liquid filter construction and methodsDONALDSON CO INC·Filed 2000·Granted May 7, 2002·47 cites·5 claims
- 0685US12161961B2Liquid filter arrangement and methodsDONALDSON CO INC·Filed 2023·Granted Dec 10, 2024·0 cites·36 claims
- 0783US11571641B2Fuel filter with coalescerDONALDSON CO INC·Filed 2019·Granted Feb 7, 2023·3 cites·20 claims
- 0882USD648822SFuel filterSALVADOR CHRISTOPHER J·Filed 2010·Granted Nov 15, 2011·23 cites·1 claims
- 0981US11654384B2Liquid filter arrangement and methodsDONALDSON CO INC·Filed 2022·Granted May 23, 2023·0 cites·19 claims
- 1079US8540080B2Fluid filter systemSALVADOR CHRISTOPHER J·Filed 2012·Granted Sep 24, 2013·3 cites·17 claims
- 1179USD646750SFuel filterCATERPILLAR INC·Filed 2010·Granted Oct 11, 2011·21 cites·1 claims
- 1278US7556155B2Fluid filter and methodsDONALDSON CO INC·Filed 2003·Granted Jul 7, 2009·29 cites·5 claims
- 1374US11369903B2Liquid filter arrangement and methodsDONALDSON CO INC·Filed 2020·Granted Jun 28, 2022·0 cites·16 claims
- 1474US9511314B2Canister filter system with drain that cooperates with filter elementCATERPILLAR INC·Filed 2013·Granted Dec 6, 2016·2 cites·11 claims
- 1572US12036487B2Fuel filter with coalescerDONALDSON CO INC·Filed 2023·Granted Jul 16, 2024·0 cites·20 claims
- 1670US9089795B2Fluid filter systemCATERPILLAR INC·Filed 2013·Granted Jul 28, 2015·1 cites·23 claims
- 1768US2025050256A1Liquid filter arrangement and methodsDONALDSON CO INC·Filed 2024·Application pending·0 cites
- 1867USD656577SFuel filterSALVADOR CHRISTOPHER J·Filed 2011·Granted Mar 27, 2012·11 cites·1 claims
- 1966USD646350SFilterCATERPILLAR INC·Filed 2010·Granted Oct 4, 2011·12 cites·1 claims
- 2062USD646751SFilterCATERPILLAR INC·Filed 2011·Granted Oct 11, 2011·10 cites·1 claims
- 2157US12239929B2Filter cartridge having air vent with restriction, assemblies, and methodsDONALDSON CO INC·Filed 2019·Granted Mar 4, 2025·0 cites·20 claims
- 2257US2013206678A1Fluid filter systemCATERPILLAR INC·Filed 2013·Application pending·0 cites
- 2354USD655781SFuel filterSALVADOR CHRISTOPHER J·Filed 2011·Granted Mar 13, 2012·7 cites·1 claims
- 2453USD655376SFuel filterSALVADOR CHRISTOPHER J·Filed 2011·Granted Mar 6, 2012·6 cites·1 claims
- 2547US2008000826A1Rolled axial flow filter and methodsHARDER DAVID B·Filed 2007·Application pending·0 cites
- 2642US2006207948A1Filter assemblies and methodsHACKER JOHN R·Filed 2004·Application pending·0 cites
- 2740US2013248436A1Liquid filter assemblyDONALDSON CO INC·Filed 2011·Application pending·0 cites
- 2840US2002139735A1Liquid filter construction and methodsDONALDSON CO INC·Filed 2002·Application pending·0 cites
- 2940US2009008320A1Fluid Filter and MethodsDONALDSON CO INC·Filed 2006·Application pending·0 cites
- 3039US2004079693A1Liquid filter having interchangeable spin-on canister filter and cartridge filter, and methodsDONALDSON CO INC·Filed 2003·Application pending·0 cites
- 3139US2017014734A1Fluid filter systemCATERPILLAR INC·Filed 2015·Application pending·0 cites
- 3236US2002125188A1Liquid filter having interchangeable spin-on canister filter and cartridge filter, and methodsFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →