Inventor
PIRKL RICHARD
DE44 patents
⚠️ This page may combine multiple inventors who share the name “PIRKL RICHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SIEMENS AG
22 patentsUS6198199B1Mar 6, 2001
Method for diagnosing a short circuit at a capacitive actuator
SIEMENS AG20 citations92
US6133714AOct 17, 2000
Method of driving at least one capacitive actuator
SIEMENS AG39 citations92
US6121715ASep 19, 2000
Method and device for driving a capacitive control element
SIEMENS AG21 citations92
US6060814AMay 9, 2000
Device and method for driving at least one capacitive actuator
SIEMENS AG31 citations92
US6016040AJan 18, 2000
Device and method for driving at least one capacitive actuator
SIEMENS AG39 citations92
US5986360ANov 16, 1999
Device and method for controlling at least one capacitive actuator
SIEMENS AG21 citations92
US7617813B2Nov 17, 2009
Method for controlling a piezoelectric actuator and control unit for controlling a piezoelectric actuator
SIEMENS AG12 citations84
US6472796B1Oct 29, 2002
Method and apparatus for controlling a capacitive actuator
SIEMENS AG17 citations84
US6441535B2Aug 27, 2002
Method and apparatus for driving at least one capacitive control element
SIEMENS AG18 citations84
US6349705B1Feb 26, 2002
Method of checking a capacitive actuator
SIEMENS AG17 citations84
US6137208AOct 24, 2000
Device and method for driving a capacitive actuator
SIEMENS AG16 citations84
US7275522B2Oct 2, 2007
Method and apparatus for controlling a valve, and method and apparatus for controlling a pump-nozzle apparatus with the valve
SIEMENS AG11 citations81
US6491027B1Dec 10, 2002
Method of driving a capacitive actuator of a fuel injection valve of an internal combustion engine
SIEMENS AG13 citations74
US6333585B1Dec 25, 2001
Discharge circuit for a capacitive actuator
SIEMENS AG8 citations74
US6212053B1Apr 3, 2001
Device and method for driving at least one capacitive actuator
SIEMENS AG11 citations74
US6081062AJun 27, 2000
Method and device for driving at least one capacitive actuator
SIEMENS AG12 citations74
US6078198AJun 20, 2000
Device and method for driving a capacitive actuator
SIEMENS AG14 citations73
US6766791B2Jul 27, 2004
Actuator regulation device and corresponding method
SIEMENS AG11 citations72
US6459244B1Oct 1, 2002
Method and device for charging a capacitive actuator
SIEMENS AG9 citations72
USRE38470EMar 23, 2004
Method and device for driving at least one capacitive actuator
SIEMENS AG2 citations63
US7040297B2May 9, 2006
Method for controlling a piezo-actuated fuel-injection valve
SIEMENS AG6 citations60
US7710052B2May 4, 2010
Method and apparatus for operation of a piezo-actuator
SIEMENS AG0 citations37
LIEBHERR COMPONENTS DEGGENDORF GMBH
11 patentsUS11542902B2Jan 3, 2023
Connecting piece for a fuel injector of an internal combustion engine
LIEBHERR COMPONENTS DEGGENDORF GMBH2 citations63
US11319913B2May 3, 2022
Injector for injecting fuel
LIEBHERR COMPONENTS DEGGENDORF GMBH0 citations59
US11111892B2Sep 7, 2021
Device for sensing the state of an injector
LIEBHERR COMPONENTS DEGGENDORF GMBH1 citations57
US12510042B2Dec 30, 2025
Device for direct injection of a gaseous fuel
LIEBHERR COMPONENTS DEGGENDORF GMBH1 citations56
US12071919B2Aug 27, 2024
Nozzle for injecting fuel
LIEBHERR COMPONENTS DEGGENDORF GMBH0 citations53
US12146462B2Nov 19, 2024
Valve of a fuel injector
LIEBHERR COMPONENTS DEGGENDORF GMBH0 citations47
US11215155B2Jan 4, 2022
Fuel injection valve
LIEBHERR COMPONENTS DEGGENDORF GMBH0 citations45
US12065981B2Aug 20, 2024
Device for detecting the state of a fuel injector
LIEBHERR COMPONENTS DEGGENDORF GMBH0 citations43
US11499513B2Nov 15, 2022
Injector for injecting fuel
LIEBHERR COMPONENTS DEGGENDORF GMBH0 citations43
US11421638B2Aug 23, 2022
Injector
LIEBHERR COMPONENTS DEGGENDORF GMBH0 citations42
US11555464B2Jan 17, 2023
Injector, and device for detecting the condition of such an injector
LIEBHERR COMPONENTS DEGGENDORF GMBH0 citations41
CONTINENTAL AUTOMOTIVE GMBH
6 patentsUS8365704B2Feb 5, 2013
Method and device for forming an electric control signal for an injection impulse
CONTINENTAL AUTOMOTIVE GMBH5 citations70
US7815128B2Oct 19, 2010
Method and injection system for injecting a fluid
CONTINENTAL AUTOMOTIVE GMBH7 citations68
US7802561B2Sep 28, 2010
Method for controlling a valve and method for controlling a pump/nozzle device with a valve
CONTINENTAL AUTOMOTIVE GMBH3 citations56
US8368288B2Feb 5, 2013
Actuator unit for an injection system of an internal combustion engine
CONTINENTAL AUTOMOTIVE GMBH1 citations51
US7690358B2Apr 6, 2010
Method and device for controlling a valve
CONTINENTAL AUTOMOTIVE GMBH1 citations49
US8038079B2Oct 18, 2011
Injection system and a method for producing an injection system
CONTINENTAL AUTOMOTIVE GMBH0 citations42