Inventor · disambiguated record
Richard Pirkl
Also filed as: PIRKL RICHARD
44 granted patents·9 pending applications·401 citations·filing 1998–2022
98Inventor score
Files withSIEMENS AG22LIEBHERR COMPONENTS DEGGENDORF GMBH17CONTINENTAL AUTOMOTIVE GMBH6LIEBHERR MACHINES BULLE SA3VOLKSWAGEN MECHATRONIC GMBH2
Top patents by PatentIndex Score
53 records- 0183US6366868B2Method and configuration for diagnosis of a capacitive actuatorSIEMENS AG AG·Filed 2001·Granted Apr 2, 2002·29 cites·25 claims
- 0281US12510042B2Device for direct injection of a gaseous fuelLIEBHERR COMPONENTS DEGGENDORF GMBH·Filed 2022·Granted Dec 30, 2025·1 cites·17 claims
- 0381US7617813B2Method for controlling a piezoelectric actuator and control unit for controlling a piezoelectric actuatorSIEMENS AG·Filed 2005·Granted Nov 17, 2009·12 cites·18 claims
- 0481US6133714AMethod of driving at least one capacitive actuatorSIEMENS AG·Filed 1999·Granted Oct 17, 2000·39 cites·4 claims
- 0580US6016040ADevice and method for driving at least one capacitive actuatorSIEMENS AG·Filed 1999·Granted Jan 18, 2000·39 cites·13 claims
- 0677US7275522B2Method and apparatus for controlling a valve, and method and apparatus for controlling a pump-nozzle apparatus with the valveSIEMENS AG·Filed 2006·Granted Oct 2, 2007·11 cites·20 claims
- 0775US6060814ADevice and method for driving at least one capacitive actuatorSIEMENS AG·Filed 1999·Granted May 9, 2000·31 cites·5 claims
- 0874US6472796B1Method and apparatus for controlling a capacitive actuatorSIEMENS AG·Filed 2000·Granted Oct 29, 2002·17 cites·15 claims
- 0974US6441535B2Method and apparatus for driving at least one capacitive control elementSIEMENS AG·Filed 2001·Granted Aug 27, 2002·18 cites·10 claims
- 1072US11111892B2Device for sensing the state of an injectorLIEBHERR COMPONENTS DEGGENDORF GMBH·Filed 2018·Granted Sep 7, 2021·1 cites·16 claims
- 1171US6349705B1Method of checking a capacitive actuatorSIEMENS AG·Filed 2000·Granted Feb 26, 2002·17 cites·10 claims
- 1270US11542902B2Connecting piece for a fuel injector of an internal combustion engineLIEBHERR COMPONENTS DEGGENDORF GMBH·Filed 2019·Granted Jan 3, 2023·2 cites·15 claims
- 1365US7815128B2Method and injection system for injecting a fluidCONTINENTAL AUTOMOTIVE GMBH·Filed 2007·Granted Oct 19, 2010·7 cites·15 claims
- 1465US6491027B1Method 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
- 1564US8365704B2Method and device for forming an electric control signal for an injection impulseCONTINENTAL AUTOMOTIVE GMBH·Filed 2008·Granted Feb 5, 2013·5 cites·20 claims
- 1663US6766791B2Actuator regulation device and corresponding methodSIEMENS AG·Filed 2003·Granted Jul 27, 2004·11 cites·22 claims
- 1763US6121715AMethod and device for driving a capacitive control elementSIEMENS AG·Filed 1999·Granted Sep 19, 2000·21 cites·12 claims
- 1863US5986360ADevice and method for controlling at least one capacitive actuatorSIEMENS AG·Filed 1998·Granted Nov 16, 1999·21 cites·8 claims
- 1960US11319913B2Injector for injecting fuelLIEBHERR COMPONENTS DEGGENDORF GMBH·Filed 2018·Granted May 3, 2022·0 cites·12 claims
- 2060US8939128B2High-pressure injectorPIRKL RICHARD·Filed 2011·Granted Jan 27, 2015·2 cites·20 claims
- 2157US12071919B2Nozzle for injecting fuelLIEBHERR COMPONENTS DEGGENDORF GMBH·Filed 2019·Granted Aug 27, 2024·0 cites·14 claims
- 2257US6198199B1Method for diagnosing a short circuit at a capacitive actuatorSIEMENS AG·Filed 1999·Granted Mar 6, 2001·20 cites·7 claims
- 2356US6459244B1Method and device for charging a capacitive actuatorSIEMENS AG·Filed 2002·Granted Oct 1, 2002·9 cites·10 claims
- 2456US6137208ADevice and method for driving a capacitive actuatorSIEMENS AG·Filed 1999·Granted Oct 24, 2000·16 cites·11 claims
- 2554US11499513B2Injector for injecting fuelLIEBHERR COMPONENTS DEGGENDORF GMBH·Filed 2019·Granted Nov 15, 2022·0 cites·20 claims
- 2653US12146462B2Valve of a fuel injectorLIEBHERR COMPONENTS DEGGENDORF GMBH·Filed 2019·Granted Nov 19, 2024·0 cites·21 claims
- 2752US11421638B2InjectorLIEBHERR COMPONENTS DEGGENDORF GMBH·Filed 2019·Granted Aug 23, 2022·0 cites·15 claims
- 2852US8368288B2Actuator unit for an injection system of an internal combustion engineCONTINENTAL AUTOMOTIVE GMBH·Filed 2008·Granted Feb 5, 2013·1 cites·15 claims
- 2952US7040297B2Method for controlling a piezo-actuated fuel-injection valveSIEMENS AG·Filed 2004·Granted May 9, 2006·6 cites·17 claims
- 3052US2025052215A1Injector for injecting fuelLIEBHERR COMPONENTS DEGGENDORF GMBH·Filed 2022·Application pending·0 cites
- 3150US7271521B2Circuit having at least one piezoelectric actuatorVOLKSWAGEN MECHATRONIC GMBH·Filed 2005·Granted Sep 18, 2007·1 cites·20 claims
- 3250US6078198ADevice and method for driving a capacitive actuatorSIEMENS AG·Filed 1998·Granted Jun 20, 2000·14 cites·9 claims
- 3348US12065981B2Device for detecting the state of a fuel injectorLIEBHERR COMPONENTS DEGGENDORF GMBH·Filed 2021·Granted Aug 20, 2024·0 cites·19 claims
- 3447US6081062AMethod and device for driving at least one capacitive actuatorSIEMENS AG·Filed 1999·Granted Jun 27, 2000·12 cites·8 claims
- 3545US9334823B2Controller for an injection systemLIEBHERR MACHINES BULLE SA·Filed 2014·Granted May 10, 2016·0 cites·20 claims
- 3645US6212053B1Device and method for driving at least one capacitive actuatorSIEMENS AG·Filed 1999·Granted Apr 3, 2001·11 cites·17 claims
- 3745US2014299207A1Injection systemLIEBHERR MACHINES BULLE SA·Filed 2012·Application pending·0 cites
- 3844US11215155B2Fuel injection valveLIEBHERR COMPONENTS DEGGENDORF GMBH·Filed 2018·Granted Jan 4, 2022·0 cites·12 claims
- 3943US7690358B2Method and device for controlling a valveCONTINENTAL AUTOMOTIVE GMBH·Filed 2005·Granted Apr 6, 2010·1 cites·8 claims
- 4043USRE38470EMethod and device for driving at least one capacitive actuatorSIEMENS AG·Filed 2001·Granted Mar 23, 2004·2 cites·8 claims
- 4143US2013319374A1Injection Device for a FluidSCHMIDT HARALD·Filed 2012·Application pending·0 cites
- 4242US9850842B2Controller for a common-rail injection systemLIEBHERR MACHINES BULLE SA·Filed 2014·Granted Dec 26, 2017·0 cites·20 claims
- 4342US8038079B2Injection system and a method for producing an injection systemCONTINENTAL AUTOMOTIVE GMBH·Filed 2007·Granted Oct 18, 2011·0 cites·16 claims
- 4441US2024077051A1Injector for injecting gasLIEBHERR COMPONENTS DEGGENDORF GMBH·Filed 2022·Application pending·0 cites
- 4539US11555464B2Injector, and device for detecting the condition of such an injectorLIEBHERR COMPONENTS DEGGENDORF GMBH·Filed 2019·Granted Jan 17, 2023·0 cites·20 claims
- 4639US6333585B1Discharge circuit for a capacitive actuatorSIEMENS AG·Filed 1999·Granted Dec 25, 2001·8 cites·6 claims
- 4736US7710052B2Method and apparatus for operation of a piezo-actuatorSIEMENS AG·Filed 2006·Granted May 4, 2010·0 cites·14 claims
- 4835US7802561B2Method for controlling a valve and method for controlling a pump/nozzle device with a valveCONTINENTAL AUTOMOTIVE GMBH·Filed 2004·Granted Sep 28, 2010·3 cites·20 claims
- 4935US2023146257A1Needle stroke switch and fuel injector having such a needle stroke switchLIEBHERR COMPONENTS DEGGENDORF GMBH·Filed 2021·Application pending·0 cites
- 5035US2023134998A1Nozzle needle for a fuel injector, and injector housing for a nozzle needleLIEBHERR COMPONENTS DEGGENDORF GMBH·Filed 2021·Application pending·0 cites
Showing the top 50 of 53 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →