Inventor · disambiguated record
Peter Hofbauer
Also filed as: GUMMER DIETER · HOFBAUER PETER · HOFBAUER PETER P
87 granted patents·18 pending applications·1,805 citations·filing 1975–2021
99Inventor score
Files withVOLKSWAGENWERK AG18ADVANCED PROPULSION TECHNOLOGIES INC15HOFBAUER PETER15THERMOLIFT INC15ECOMOTORS INC12
Top patents by PatentIndex Score
105 records- 0197US8763583B2Opposed-piston, opposed-cylinder engine with collinear cylindersHOFBAUER PETER·Filed 2012·Granted Jul 1, 2014·71 cites·18 claims
- 0297US7650873B2Spark ignition and fuel injector system for an internal combustion engineADVANCED PROPULSION TECHNOLOGIES INC·Filed 2007·Granted Jan 26, 2010·47 cites·20 claims
- 0397US6170443B1Internal combustion engine with a single crankshaft and having opposed cylinders with opposed pistonsHALIMI EDWARD MAYER·Filed 1999·Granted Jan 9, 2001·249 cites·26 claims
- 0496US7735834B2Two-stroke internal combustion engine with oil ringFEV ENGINE TECHNOLOGY INC·Filed 2005·Granted Jun 15, 2010·32 cites·18 claims
- 0596US7469664B2Internal combustion engineADVANCED PROPULSION TECHNOLOGIES INC·Filed 2004·Granted Dec 30, 2008·77 cites·25 claims
- 0696US7207299B2Internal combustion engineADVANCED PROPULSION TECHNOLOGIES INC·Filed 2004·Granted Apr 24, 2007·53 cites·35 claims
- 0795US8677950B2Combustion chamber promoting tumble flowHOFBAUER PETER·Filed 2012·Granted Mar 25, 2014·16 cites·16 claims
- 0895US7578267B2Internal combustion engineADVANCED PROPULSION TECHNOLOGIES INC·Filed 2008·Granted Aug 25, 2009·28 cites·23 claims
- 0995US7509937B2Piston ring, piston skirt and cylinder liner lubrication system and method for an internal combustion engineADVANCED PROPULSION TECHNOLOGIES INC·Filed 2007·Granted Mar 31, 2009·23 cites·23 claims
- 1095US6722458B2Multi-engine drive system for a vehicleFEV MOTORENTECH GMBH·Filed 2001·Granted Apr 20, 2004·94 cites·10 claims
- 1194US8337359B2Hybrid engine systemHOFBAUER PETER·Filed 2009·Granted Dec 25, 2012·39 cites·21 claims
- 1294US7255070B2Internal combustion engineADVANCED PROPULSION TECHNOLOGIES INC·Filed 2006·Granted Aug 14, 2007·25 cites·11 claims
- 1394US4392394AEngine-gear arrangement for vehicles, in particular passenger carsVOLKSWAGENWERK AG·Filed 1980·Granted Jul 12, 1983·62 cites·8 claims
- 1494US4346773AApparatus for operating a motor vehicleVOLKSWAGENWERK AG·Filed 1980·Granted Aug 31, 1982·90 cites·3 claims
- 1593US8783218B2Toroidal combustion chamber with side injectionSHEN HUIXIAN·Filed 2012·Granted Jul 22, 2014·19 cites·21 claims
- 1693US8746204B2Frictionless rocking jointHOFBAUER PETER P·Filed 2011·Granted Jun 10, 2014·26 cites·27 claims
- 1793US7360361B2TurbochargerADVANCED PROPULSION TECHNOLOGIES INC·Filed 2006·Granted Apr 22, 2008·55 cites·6 claims
- 1893US4343387ADevice for automatic actuation of an automobile clutchVOLKSWAGENWERK AG·Filed 1980·Granted Aug 10, 1982·63 cites·10 claims
- 1992US4437443AFuel injection deviceVOLKSWAGENWERK AG·Filed 1981·Granted Mar 20, 1984·38 cites·9 claims
- 2091US8511287B2Supercritical-state fuel injection system and methodHOFBAUER PETER·Filed 2010·Granted Aug 20, 2013·9 cites·21 claims
- 2190US7383796B2Internal combustion engineADVANCED PROPULSION TECHNOLOGIES INC·Filed 2006·Granted Jun 10, 2008·16 cites·13 claims
- 2290US4296716AInternal combustion engine for an automobile with a divided oil panVOLKSWAGENWERK AG·Filed 1979·Granted Oct 27, 1981·56 cites·12 claims
- 2390US4252208AMethod and apparatus for operating a motor vehicleVOLKSWAGENWERK AG·Filed 1978·Granted Feb 24, 1981·35 cites·24 claims
- 2488US9482145B2Toroidal combustion chamber with side injectionECOMOTORS INC·Filed 2012·Granted Nov 1, 2016·8 cites·15 claims
- 2588US7434550B2Internal combustion engineADVANCED PROPULSION TECHNOLOGIES INC·Filed 2007·Granted Oct 14, 2008·18 cites·20 claims
- 2687US5675974AHeat exchangerBOSCH GMBH ROBERT·Filed 1995·Granted Oct 14, 1997·59 cites·8 claims
- 2785US7047916B2Two-stroke internal combustion engine with free opposed pistonsFEV MOTORENTECH GMBH·Filed 2005·Granted May 23, 2006·19 cites·21 claims
- 2884US8677749B2Exhaust system for an internal combustion engineLAIMBOECK FRANZ·Filed 2012·Granted Mar 25, 2014·7 cites·9 claims
- 2984US4222358AFuel injection systemVOLKSWAGENWERK AG·Filed 1978·Granted Sep 16, 1980·22 cites·2 claims
- 3083US7631640B2Radiant burnerADVANCED PROPULSION TECHNOLOGIES INC·Filed 2005·Granted Dec 15, 2009·15 cites·21 claims
- 3183US6904876B1Sodium cooled pistons for a free piston engineFORD GLOBAL TECH LLC·Filed 2004·Granted Jun 14, 2005·20 cites·15 claims
- 3282US9677794B2Heat pump with electromechanically-actuated displacersTHERMOLIFT INC·Filed 2013·Granted Jun 13, 2017·4 cites·25 claims
- 3382US9174143B1Recovery of water from exhaust gasBORLA ALEXANDER·Filed 2014·Granted Nov 3, 2015·5 cites·7 claims
- 3482US6651431B1Boosted internal combustion engines and air compressors used thereinFORD GLOBAL TECH LLC·Filed 2002·Granted Nov 25, 2003·39 cites·25 claims
- 3581US4183332AIntake systemVOLKSWAGENWERK AG·Filed 1978·Granted Jan 15, 1980·22 cites·12 claims
- 3680US9541198B2Two-part stationary ring for devices having pistonsECOMOTORS INC·Filed 2014·Granted Jan 10, 2017·3 cites·18 claims
- 3780US8290653B2Powertrain with multiple, selectable power sourcesHOFBAUER PETER·Filed 2009·Granted Oct 16, 2012·13 cites·20 claims
- 3879US8344576B2Electric motor rotorECOMOTORS INTERNAT·Filed 2010·Granted Jan 1, 2013·5 cites·15 claims
- 3979US3985476ARotary internal combustion engine with valved inlet through pistonVOLKSWAGENWERK AG·Filed 1975·Granted Oct 12, 1976·25 cites·6 claims
- 4078US7728446B2Ring generatorADVANCED PROPULSION TECHNOLOGIES INC·Filed 2004·Granted Jun 1, 2010·20 cites·21 claims
- 4174US8757123B2Balancing an opposed-piston, opposed-cylinder engineECOMOTORS INC·Filed 2012·Granted Jun 24, 2014·3 cites·19 claims
- 4274US7895936B2Piston with a lightweight construction that is subjected to high thermal stressADVANCED PROPULSION TECHNOLOGIES INC·Filed 2005·Granted Mar 1, 2011·6 cites·23 claims
- 4373US11230051B2Homogenization of the energy inputEOS GMBH ELECTRO OPTICAL SYSTEMS·Filed 2018·Granted Jan 25, 2022·1 cites·10 claims
- 4473US8464670B2Guided bridge for a piston in an internal combustion engineHOFBAUER PETER·Filed 2010·Granted Jun 18, 2013·4 cites·22 claims
- 4573US4685328ACapillary viscometerSCHOTT GERAETE·Filed 1986·Granted Aug 11, 1987·39 cites·4 claims
- 4670US9729035B2Electric motor rotorECOMOTORS INC·Filed 2015·Granted Aug 8, 2017·1 cites·20 claims
- 4769US8958971B2System and method to control an electronically-controlled turbochargerHOFBAUER PETER·Filed 2012·Granted Feb 17, 2015·3 cites·20 claims
- 4869US8783015B2Shared EGR system and method for a dual-module engineECOMOTORS INC·Filed 2012·Granted Jul 22, 2014·3 cites·17 claims
- 4968US9145845B2Ventilation slots in a cylinder wallECOMOTORS INC·Filed 2014·Granted Sep 29, 2015·1 cites·19 claims
- 5067US8598722B2Electrical generatorHOFBAUER PETER·Filed 2011·Granted Dec 3, 2013·2 cites·20 claims
Showing the top 50 of 105 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →