Inventor · disambiguated record
Stefan Deferme
Also filed as: DEFERME STEFAN · DEFERME STEFAN LEOPOLD JOZEF
38 granted patents·4 pending applications·628 citations·filing 1996–2023
97Inventor score
Files withDRIV AUTOMOTIVE INC13TENNECO AUTOMOTIVE INC8TENNECO AUTOMOTIVE OPERATING CO INC8TENNECO AUTOMOTIVE OPERATING7ADVANCED SUSPENSION TECH LLC2
Top patents by PatentIndex Score
42 records- 0197US12146548B2Damper with a slanted elliptical sealDRIV AUTOMOTIVE INC·Filed 2023·Granted Nov 19, 2024·3 cites·4 claims
- 0296US11906015B2Damper with a slanted elliptical seal between an intermediate tube and an inner pressure tubeDRIV AUTOMOTIVE INC·Filed 2022·Granted Feb 20, 2024·3 cites·20 claims
- 0396US8069964B2Junction bleedDEFERME STEFAN·Filed 2007·Granted Dec 6, 2011·77 cites·12 claims
- 0495US10434835B2Monotube active suspension system having different system layouts for controlling pump flow distributionTENNECO AUTOMOTIVE OPERATING CO INC·Filed 2017·Granted Oct 8, 2019·26 cites·17 claims
- 0595US6220406B1Passive anti-roll systemTENNECO AUTOMOTIVE INC·Filed 2000·Granted Apr 24, 2001·57 cites·7 claims
- 0695US6220409B1Stroke dependent bypassTENNECO AUTOMOTIVE INC·Filed 1999·Granted Apr 24, 2001·89 cites·12 claims
- 0794US6918473B2Stroke dependent bypassTENNECO AUTOMOTIVE OPERATING·Filed 2003·Granted Jul 19, 2005·49 cites·12 claims
- 0893US11441633B2Damper assembly including intake valve in fluid chamberDRIV AUTOMOTIVE INC·Filed 2020·Granted Sep 13, 2022·4 cites·16 claims
- 0992US11635122B2Intake device for a damper having a side collectorTENNECO AUTOMOTIVE OPERATING CO INC·Filed 2021·Granted Apr 25, 2023·2 cites·21 claims
- 1092US7703586B2Four-piece pistonTENNECO AUTOMOTIVE OPERATING·Filed 2006·Granted Apr 27, 2010·21 cites·17 claims
- 1192US6371264B1Fulcrum blow off valve for use in a shock absorberTENNECO AUTOMOTIVE INC·Filed 1999·Granted Apr 16, 2002·68 cites·16 claims
- 1289US11454292B2Damper assemblyDRIV AUTOMOTIVE INC·Filed 2020·Granted Sep 27, 2022·2 cites·18 claims
- 1389US11118649B2Damper with side collector and external control valvesTENNECO AUTOMOTIVE OPERATING CO INC·Filed 2019·Granted Sep 14, 2021·4 cites·20 claims
- 1486US7070029B2Monotube piston valving system with selective bleedTENNECO AUTOMOTIVE OPERATING·Filed 2003·Granted Jul 4, 2006·27 cites·7 claims
- 1583US5738190AFlexing disc-blow off assembly for use in a shock absorberMONROE AUTO EQUIPMENT CO·Filed 1996·Granted Apr 14, 1998·38 cites·21 claims
- 1682US11761507B2Weight optimized bellow accumulatorDRIV AUTOMOTIVE INC·Filed 2021·Granted Sep 19, 2023·1 cites·16 claims
- 1781US6899207B2Extra support area for valve discTENNECO AUTOMOTIVE OPERATING·Filed 2003·Granted May 31, 2005·25 cites·20 claims
- 1879US6102170APassive anti-roll systemTENNECO AUTOMOTIVE INC·Filed 1998·Granted Aug 15, 2000·32 cites·16 claims
- 1978US11248677B2Pre-assembled piston accumulator insert deviceTENNECO AUTOMOTIVE OPERATING CO INC·Filed 2019·Granted Feb 15, 2022·2 cites·14 claims
- 2078US11156261B2Damper with multiple external control valvesTENNECO AUTOMOTIVE OPERATING CO INC·Filed 2018·Granted Oct 26, 2021·2 cites·20 claims
- 2176US5813500AAnti-swish mechanism for a damperTENNECO AUTOMOTIVE INC·Filed 1996·Granted Sep 29, 1998·28 cites·10 claims
- 2272US11143260B2Damper with single external control valveTENNECO AUTOMOTIVE OPERATING CO INC·Filed 2018·Granted Oct 12, 2021·1 cites·20 claims
- 2370US11454291B2Damper with control valvesTENNECO AUTOMOTIVE OPERATING CO INC·Filed 2018·Granted Sep 27, 2022·2 cites·20 claims
- 2469US12085138B2Damper assembly with accumulatorDRIV AUTOMOTIVE INC·Filed 2021·Granted Sep 10, 2024·0 cites·20 claims
- 2565US7290352B2measurement device for a support land for a valve discTENNECO AUTOMOTIVE OPERATING·Filed 2005·Granted Nov 6, 2007·6 cites·20 claims
- 2661US12442430B2Damper with base line valveADVANCED SUSPENSION TECH LLC·Filed 2023·Granted Oct 14, 2025·0 cites·20 claims
- 2760US8997953B2Shock absorber having a full displacement valve assemblyDEFERME STEFAN·Filed 2007·Granted Apr 7, 2015·2 cites·10 claims
- 2858US6085876AFlexing disc-blow off assembly for use in a shock absorberTENNECO AUTOMOTIVE INC·Filed 1997·Granted Jul 11, 2000·15 cites·18 claims
- 2956US2024110609A1Damper Assembly Including Intake Valve In Fluid ChamberDRIV AUTOMOTIVE INC·Filed 2023·Application pending·0 cites
- 3053US12454991B2Space saving pressure relief valves for suspension dampersADVANCED SUSPENSION TECH LLC·Filed 2022·Granted Oct 28, 2025·0 cites·20 claims
- 3153US12305770B2Coil assembly for an actively controlled damping valve assembly of a vehicleDRIV AUTOMOTIVE INC·Filed 2022·Granted May 20, 2025·0 cites·15 claims
- 3252US11359648B2Accumulator with flexible inflatable containerTENNECO AUTOMOTIVE OPERATING CO INC·Filed 2020·Granted Jun 14, 2022·0 cites·16 claims
- 3352US7097016B2Fulcrum blow off valve for use in a shock absorberTENNECO AUTOMOTIVE OPERATING·Filed 2003·Granted Aug 29, 2006·4 cites·11 claims
- 3452US2024109390A1Damper assembly including intake valve in fluid chamberDRIV AUTOMOTIVE INC·Filed 2022·Application pending·0 cites
- 3551US11719305B2Balanced continuously semi-active damperDRIV AUTOMOTIVE INC·Filed 2019·Granted Aug 8, 2023·0 cites·20 claims
- 3650US12270451B2Pressure relief poppet valves for suspension dampersDRIV AUTOMOTIVE INC·Filed 2022·Granted Apr 8, 2025·0 cites·20 claims
- 3750US5855258AAnti-swish mechanism for a damperTENNECO AUTOMOTIVE INC·Filed 1998·Granted Jan 5, 1999·11 cites·8 claims
- 3849US6883652B2Heavy duty base valveTENNECO AUTOMOTIVE OPERATING·Filed 2003·Granted Apr 26, 2005·2 cites·8 claims
- 3948US5755305AHydraulic vibration damper with noise reducing valve structureMONROE AUTO EQUIPMENT CO·Filed 1997·Granted May 26, 1998·17 cites·12 claims
- 4046US2024068539A1Damper with attached valveDRIV AUTOMOTIVE INC·Filed 2022·Application pending·0 cites
- 4142US2022243781A1Accumulator for a damper and method of manufacture thereofDRIV AUTOMOTIVE INC·Filed 2021·Application pending·0 cites
- 4241US5769190AContinuous controlled restriction valve for a shock absorberTENNECO AUTOMOTIVE INC·Filed 1996·Granted Jun 23, 1998·8 cites·21 claims
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