Inventor · disambiguated record
Dirk Hagelstein
Also filed as: HAGELSTEIN DIRK
6 granted patents·3 pending applications·25 citations·filing 2010–2020
74Inventor score
Top patents by PatentIndex Score
9 records- 0185US8051842B2Internal combustion engine with an exhaust-gas turbocharger and a charge-air cooler and method for operating an internal combustion engineVOLKSWAGEN AG·Filed 2010·Granted Nov 8, 2011·19 cites·15 claims
- 0268US8844283B2Exhaust-gas turbocharger with a bypass valveKÜHLMEYER JENS·Filed 2013·Granted Sep 30, 2014·6 cites·10 claims
- 0356US11073110B2Fuel supply system for the active purging of an antechamber of a spark-ignition internal combustion engine, using fuel vapor or a fuel vapor/air mixture, with the aid of a fuel evaporator upstream from the antechamberVOLKSWAGEN AG·Filed 2020·Granted Jul 27, 2021·0 cites·19 claims
- 0452US11319904B2Supply of an active prechamber for turbocharged gasoline engines with an air extraction downstream of an exhaust gas turbochargerVOLKSWAGEN AG·Filed 2020·Granted May 3, 2022·0 cites·11 claims
- 0546US10815876B2Method for operating an internal combustion engine and the internal combustion engineVOLKSWAGEN AG·Filed 2019·Granted Oct 27, 2020·0 cites·11 claims
- 0643US11028766B2Method of operating a motor vehicle and motor vehicleVOLKSWAGEN AG·Filed 2019·Granted Jun 8, 2021·0 cites·6 claims
- 0741US2020011230A1Method of operating an internal combustion engine, an internal combustion engine and a motor vehicleVOLKSWAGEN AG·Filed 2019·Application pending·0 cites
- 0834US2010132355A1Internal Combustion EngineVOLKSWAGEN AG·Filed 2010·Application pending·0 cites
- 0932US2021140362A1Exhaust gas turbocharger for high-performance engine conceptsVOLKSWAGEN AG·Filed 2020·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →