Inventor · disambiguated record
Peter K. Herman
Also filed as: HERMAN PETER · HERMAN PETER K
126 granted patents·12 pending applications·2,417 citations·filing 1989–2024
99Inventor score
Files withCUMMINS FILTRATION IP INC79FLEETGUARD INC28HERMAN PETER K6NELSON IND INC3CUMMINS ENGINE CO INC2
Top patents by PatentIndex Score
138 records- 0198US7699029B2Crankcase ventilation system with pumped scavenged oilCUMMINS FILTRATION IP INC·Filed 2007·Granted Apr 20, 2010·34 cites·22 claims
- 0298US7506663B2Magnetic check valveFLEETGUARD INC·Filed 2006·Granted Mar 24, 2009·65 cites·20 claims
- 0397US12023619B2Split flow axial crankcase separatorCUMMINS FILTRATION IP INC·Filed 2020·Granted Jul 2, 2024·4 cites·24 claims
- 0497US11951431B2Axial flow centrifugal separatorCUMMINS FILTRATION IP INC·Filed 2022·Granted Apr 9, 2024·4 cites·21 claims
- 0597US7870850B2Crankcase ventilation system with pumped scavenged oilCUMMINS FILTRATION IP INC·Filed 2010·Granted Jan 18, 2011·12 cites·21 claims
- 0697US7648543B2Multistage variable impactorCUMMINS FILTRATION IP INC·Filed 2007·Granted Jan 19, 2010·30 cites·16 claims
- 0797US7156991B2Liquid additive slow-release apparatus driven by a filter pressure gradientFLEETGUARD INC·Filed 2004·Granted Jan 2, 2007·84 cites·14 claims
- 0896US9061224B2System for monitoring and indicating filter lifeVERDEGAN BARRY M·Filed 2011·Granted Jun 23, 2015·24 cites·28 claims
- 0996US7235177B2Integral air/oil coalescer for a centrifugeFLEETGUARD INC·Filed 2003·Granted Jun 26, 2007·87 cites·24 claims
- 1096US5472463APressure side integrated air filter and filtering networks for enginesCUMMINS ENGINE CO INC·Filed 1994·Granted Dec 5, 1995·296 cites·18 claims
- 1195US11446598B2Axial flow centrifugal separatorCUMMINS FILTRATION IP INC·Filed 2018·Granted Sep 20, 2022·8 cites·20 claims
- 1295US8932465B2Filter cartridge having a filter within a filter, and an endplate sealing structure on an outer filter elementCUMMINS FILTRATION IP INC·Filed 2012·Granted Jan 13, 2015·23 cites·21 claims
- 1395US8794222B2Crankcase ventilation inside-out flow rotating coalescerSCHWANDT BRIAN W·Filed 2010·Granted Aug 5, 2014·53 cites·16 claims
- 1495US8097061B2Elliptical seal interface for filter assemblySMITH BRADLEY·Filed 2008·Granted Jan 17, 2012·57 cites·19 claims
- 1595US7153422B2Liquid additive slow-release apparatus driven by a filter pressure gradientFLEETGUARD INC·Filed 2004·Granted Dec 26, 2006·82 cites·11 claims
- 1695US6709575B1Extended life combination filterNELSON IND INC·Filed 2000·Granted Mar 23, 2004·89 cites·8 claims
- 1795US5637217ASelf-driven, cone-stack type centrifugeFLEETGUARD INC·Filed 1996·Granted Jun 10, 1997·130 cites·30 claims
- 1894US8534123B2Engine air filter replacement indication systemHERMAN PETER K·Filed 2011·Granted Sep 17, 2013·14 cites·24 claims
- 1994US8146574B2Engine air management systemHECKEL SCOTT P·Filed 2009·Granted Apr 3, 2012·21 cites·4 claims
- 2094US7238216B2Variable flow inertial gas-liquid impactor separatorCUMMINS FILTRATION IP INC·Filed 2004·Granted Jul 3, 2007·80 cites·14 claims
- 2193US6139595AAir/oil coalescer with centrifugally assisted drainageFLEETGUARD INC·Filed 1998·Granted Oct 31, 2000·110 cites·23 claims
- 2293US6019717ANozzle inlet enhancement for a high speed turbine-driven centrifugeFLEETGUARD INC·Filed 1998·Granted Feb 1, 2000·97 cites·5 claims
- 2392US10537842B2Systems and methods for utilizing a low-friction rotating coalescer contact sealCUMMINS FILTRATION IP INC·Filed 2016·Granted Jan 21, 2020·6 cites·18 claims
- 2492US6017300AHigh performance soot removing centrifuge with impulse turbineFLEETGUARD INC·Filed 1998·Granted Jan 25, 2000·88 cites·38 claims
- 2591US8926725B2V-shaped filter with serviceable frames and cartridgesLOKEN GREGORY K·Filed 2012·Granted Jan 6, 2015·21 cites·30 claims
- 2691US8616188B2Engine air management systemVERDEGAN BARRY M·Filed 2012·Granted Dec 31, 2013·7 cites·4 claims
- 2791US8342160B2Engine air management systemCUMMINS FILTRATION IP INC·Filed 2012·Granted Jan 1, 2013·9 cites·8 claims
- 2890US11504665B2Rotating coalescing element with directed liquid drainage and gas outletCUMMINS FILTRATION IP INC·Filed 2020·Granted Nov 22, 2022·2 cites·26 claims
- 2990US10287935B2Virtual filter condition sensorCUMMINS FILTRATION IP INC·Filed 2018·Granted May 14, 2019·3 cites·20 claims
- 3090US7857883B2Inertial gas-liquid separator with constrictable and expansible nozzle valve sidewallCUMMINS FILTRATION IP INC·Filed 2007·Granted Dec 28, 2010·24 cites·2 claims
- 3190US7615151B2Filter with installation integrity and magnetic flow-controlCUMMINS FILTRATION IP INC·Filed 2007·Granted Nov 10, 2009·19 cites·7 claims
- 3290US6533712B1Centrifuge housing with oil fill portFLEETGUARD INC·Filed 2000·Granted Mar 18, 2003·42 cites·4 claims
- 3389US11458484B2Separation assembly with a single-piece impulse turbineCUMMINS FILTRATION IP INC·Filed 2017·Granted Oct 4, 2022·2 cites·28 claims
- 3489US8114183B2Space optimized coalescerSCHWANDT BRIAN W·Filed 2006·Granted Feb 14, 2012·25 cites·36 claims
- 3589US7828865B2Gas-liquid separator with dual flow impaction and coalescenceCUMMINS FILTRATION IP INC·Filed 2008·Granted Nov 9, 2010·20 cites·21 claims
- 3689US7393317B2Centrifuge rotor-detection oil-shutoff deviceCUMMINS FILTRATION IP INC·Filed 2005·Granted Jul 1, 2008·12 cites·19 claims
- 3788US8845897B2Drain valve for filter service and methodWIECZOREK MARK·Filed 2008·Granted Sep 30, 2014·21 cites·19 claims
- 3888US8333890B2Filter cartridge having a filter within a filter, and an endplate sealing structure on an outer filter elementWELLS AARON M·Filed 2009·Granted Dec 18, 2012·22 cites·22 claims
- 3988US7964009B2Inertial gas-liquid separator with axially variable orifice areaCUMMINS FILTRATION IP INC·Filed 2009·Granted Jun 21, 2011·14 cites·41 claims
- 4088US7850845B2Filter with installation integrity and magnetic flow-controlCUMMINS FILTRATION IP INC·Filed 2009·Granted Dec 14, 2010·15 cites·14 claims
- 4188US7674376B1Centrifuge with integral depth filterCUMMINS FILTRATION IP INC·Filed 2005·Granted Mar 9, 2010·19 cites·19 claims
- 4288US6364822B1Hero-turbine centrifuge with drainage enhancing baffle devicesFLEETGUARD INC·Filed 2000·Granted Apr 2, 2002·40 cites·13 claims
- 4387US10634022B2Virtual filter condition sensorCUMMINS FILTRATION IP INC·Filed 2019·Granted Apr 28, 2020·2 cites·21 claims
- 4487US5795477ASelf-driven, cone-stack type centrifugeFLEETGUARD INC·Filed 1997·Granted Aug 18, 1998·60 cites·15 claims
- 4586US8118909B2Multistage variable impactorFABER STEPHANIE L·Filed 2011·Granted Feb 21, 2012·5 cites·10 claims
- 4686US7935165B2Multistage variable impactorCUMMINS FILTRATION IP INC·Filed 2009·Granted May 3, 2011·8 cites·22 claims
- 4785US11235273B2Filter assembly with a diffuserCUMMINS FILTRATION IP INC·Filed 2018·Granted Feb 1, 2022·2 cites·22 claims
- 4885US8986539B2Inside-out flow filter with pressure recoveryHERMAN PETER K·Filed 2012·Granted Mar 24, 2015·7 cites·29 claims
- 4984US7377893B2Hero-turbine centrifuge with flow-isolated collection chamberFLEETGUARD INC·Filed 2005·Granted May 27, 2008·11 cites·14 claims
- 5083US12303816B2Axial flow centrifugal separatorCUMMINS FILTRATION IP INC·Filed 2024·Granted May 20, 2025·0 cites·15 claims
Showing the top 50 of 138 patent records by PatentIndex Score.
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