Inventor · disambiguated record
Hellmut Freudenberg
Also filed as: FREUDENBERG HELLMUT
34 granted patents·430 citations·filing 1990–2012
97Inventor score
Files withSIEMENS AG26CONTINENTAL AUTOMOTIVE GMBH2KRONBERGER MAXIMILIAN2LEHMANN STEFAN2BAYER HEINER1
Top patents by PatentIndex Score
34 records- 0183US8198783B2Piezoelectric actuator with encapsulation layer having a thickness-varying property gradientBAYER HEINER·Filed 2007·Granted Jun 12, 2012·7 cites·10 claims
- 0283US6366868B2Method and configuration for diagnosis of a capacitive actuatorSIEMENS AG AG·Filed 2001·Granted Apr 2, 2002·29 cites·25 claims
- 0381US6133714AMethod of driving at least one capacitive actuatorSIEMENS AG·Filed 1999·Granted Oct 17, 2000·39 cites·4 claims
- 0480US6016040ADevice and method for driving at least one capacitive actuatorSIEMENS AG·Filed 1999·Granted Jan 18, 2000·39 cites·13 claims
- 0575US6060814ADevice and method for driving at least one capacitive actuatorSIEMENS AG·Filed 1999·Granted May 9, 2000·31 cites·5 claims
- 0674US6472796B1Method and apparatus for controlling a capacitive actuatorSIEMENS AG·Filed 2000·Granted Oct 29, 2002·17 cites·15 claims
- 0774US6441535B2Method and apparatus for driving at least one capacitive control elementSIEMENS AG·Filed 2001·Granted Aug 27, 2002·18 cites·10 claims
- 0874US6236190B1Method and device for driving a capacitive actuatorSIEMENS AG·Filed 1999·Granted May 22, 2001·30 cites·10 claims
- 0972US7406952B2Method and device for controllling an injectorSIEMENS AG·Filed 2005·Granted Aug 5, 2008·7 cites·20 claims
- 1067US6271618B1Method and configuration for driving a capacitive actuatorSIEMENS AG·Filed 1999·Granted Aug 7, 2001·23 cites·11 claims
- 1166US7851978B2Piezo actuator comprising a multilayer encapsulation, and method for the production thereofSIEMENS AG·Filed 2007·Granted Dec 14, 2010·4 cites·9 claims
- 1266US6109245AApparatus and method for driving a piezoelectrically controlled fuel injection valveSIEMENS AG·Filed 1999·Granted Aug 29, 2000·24 cites·8 claims
- 1365US6491027B1Method of driving a capacitive actuator of a fuel injection valve of an internal combustion engineSIEMENS AG·Filed 2000·Granted Dec 10, 2002·13 cites·4 claims
- 1463US6121715AMethod and device for driving a capacitive control elementSIEMENS AG·Filed 1999·Granted Sep 19, 2000·21 cites·12 claims
- 1563US5986360ADevice and method for controlling at least one capacitive actuatorSIEMENS AG·Filed 1998·Granted Nov 16, 1999·21 cites·8 claims
- 1657US6198199B1Method for diagnosing a short circuit at a capacitive actuatorSIEMENS AG·Filed 1999·Granted Mar 6, 2001·20 cites·7 claims
- 1756US6137208ADevice and method for driving a capacitive actuatorSIEMENS AG·Filed 1999·Granted Oct 24, 2000·16 cites·11 claims
- 1852US8368288B2Actuator unit for an injection system of an internal combustion engineCONTINENTAL AUTOMOTIVE GMBH·Filed 2008·Granted Feb 5, 2013·1 cites·15 claims
- 1952US7040297B2Method for controlling a piezo-actuated fuel-injection valveSIEMENS AG·Filed 2004·Granted May 9, 2006·6 cites·17 claims
- 2050US6078198ADevice and method for driving a capacitive actuatorSIEMENS AG·Filed 1998·Granted Jun 20, 2000·14 cites·9 claims
- 2147US6081062AMethod and device for driving at least one capacitive actuatorSIEMENS AG·Filed 1999·Granted Jun 27, 2000·12 cites·8 claims
- 2245US6917141B2Device with a piezoelectric actuatorSIEMENS AG·Filed 2004·Granted Jul 12, 2005·2 cites·16 claims
- 2345US6212053B1Device and method for driving at least one capacitive actuatorSIEMENS AG·Filed 1999·Granted Apr 3, 2001·11 cites·17 claims
- 2443USRE38470EMethod and device for driving at least one capacitive actuatorSIEMENS AG·Filed 2001·Granted Mar 23, 2004·2 cites·8 claims
- 2542US9447760B2Drive device for an injection valve, and injection valveKRONBERGER MAXIMILIAN·Filed 2011·Granted Sep 20, 2016·0 cites·14 claims
- 2642US9376993B2Lever device and a fuel injection valveLEHMANN STEFAN·Filed 2012·Granted Jun 28, 2016·0 cites·16 claims
- 2741US9500169B2Lever device and a fuel injection valveLEHMANN STEFAN·Filed 2012·Granted Nov 22, 2016·0 cites·12 claims
- 2839US6333585B1Discharge circuit for a capacitive actuatorSIEMENS AG·Filed 1999·Granted Dec 25, 2001·8 cites·6 claims
- 2936US5301649AIgnition device for internal combustion enginesSIEMENS AG·Filed 1992·Granted Apr 12, 1994·5 cites·10 claims
- 3035US9371807B2Method and device for setting an idle stroke of an actuating drive of an injection valve, and injector assemblyKRONBERGER MAXIMILIAN·Filed 2011·Granted Jun 21, 2016·0 cites·7 claims
- 3135US5279275AProcess for operating an internal combustion engineSIEMENS AG·Filed 1990·Granted Jan 18, 1994·4 cites·5 claims
- 3233US7726625B2Device, method for producing the device, chamber device and transfer deviceCONTINENTAL AUTOMOTIVE GMBH·Filed 2004·Granted Jun 1, 2010·0 cites·14 claims
- 3333US5967117AMethod for determining a rotational speed for an idling control of an internal combustion engineSIEMENS AG·Filed 1997·Granted Oct 19, 1999·5 cites·3 claims
- 3419US5261377AProcess for the transition correction of the mixture control of an internal combustion engine during dynamic transition statesSIEMENS AG·Filed 1991·Granted Nov 16, 1993·1 cites·8 claims
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