Inventor · disambiguated record
Georg Gierer
Also filed as: GIERER GEORG
53 granted patents·6 pending applications·588 citations·filing 1977–2010
98Inventor score
Top patents by PatentIndex Score
59 records- 0191US7736270B2Control valve arrangement for controlling a start clutch of an automatic gearboxZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2005·Granted Jun 15, 2010·14 cites·26 claims
- 0291US4981052ATransmission control fail safe systemZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1987·Granted Jan 1, 1991·49 cites·14 claims
- 0388US6155948AMethod of determining the parameters of an automatic transmissionZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1997·Granted Dec 5, 2000·43 cites·7 claims
- 0488US4944202AElectrohydraulic control for an automatically shiftable automotive transmissionZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1987·Granted Jul 31, 1990·43 cites·6 claims
- 0583US7794349B2Gear control deviceZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2006·Granted Sep 14, 2010·11 cites·13 claims
- 0683US6471027B1Parking brake, notably for automatic transmission systems of motor vehiclesZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1999·Granted Oct 29, 2002·41 cites·7 claims
- 0781US6527670B1Control device for an automatic automobile transmissionZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1999·Granted Mar 4, 2003·33 cites·7 claims
- 0880US7243767B2Transmission hydraulic control unitZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2005·Granted Jul 17, 2007·9 cites·20 claims
- 0979US7635057B2Device for the control at least of a hydraulically operable switching element of an automatic transmissionZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2006·Granted Dec 22, 2009·9 cites·3 claims
- 1078US6948395B2Limp home device for a vehicle with automatic transmissionZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2003·Granted Sep 27, 2005·17 cites·18 claims
- 1178US6544139B1Electronic-hydraulic control for automobile drive systems with automatic gear shiftingZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1999·Granted Apr 8, 2003·28 cites·21 claims
- 1277US6997300B2Device for the control of a hydraulically actuated clutch of an automatic transmissionZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2004·Granted Feb 14, 2006·13 cites·17 claims
- 1375US8403806B2Oil pump for an automatic transmission and control method theretoHAUPT JOSEF·Filed 2010·Granted Mar 26, 2013·4 cites·11 claims
- 1473US4896568AElectric-hydraulic controlZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1987·Granted Jan 30, 1990·23 cites·3 claims
- 1572US8086381B2Method for the emergency actuation of an automated double clutch transmission of a motor vehicleFRITZER ANTON·Filed 2007·Granted Dec 27, 2011·6 cites·9 claims
- 1672US8033106B2Electrohydraulic transmission controller, transmission device, and a motor vehicle drive trainZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2008·Granted Oct 11, 2011·5 cites·23 claims
- 1772US6968935B2Shift element sub-assembly for a transmissionZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2002·Granted Nov 29, 2005·11 cites·9 claims
- 1871US8667885B2Actuating device for a shift element of a transmission device which can be applied with an actuating pressureSCHMIDT THILO·Filed 2010·Granted Mar 11, 2014·3 cites·15 claims
- 1969US7771317B2Control valve assembly for controlling a starting clutch of an automatic transmissionZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2006·Granted Aug 10, 2010·5 cites·16 claims
- 2069US6872165B2Parking brake system for a gearbox of a motor vehicleZF FREIDRICHSHAFEN AG·Filed 2001·Granted Mar 29, 2005·10 cites·12 claims
- 2169US5305862AControl device for a frictionally engaging clutch for a hydrodynamic torque converterZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1989·Granted Apr 26, 1994·20 cites·6 claims
- 2268US5417626AElectronic-hydraulic control device for transmission systems of vehicles with automatic gear changeZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1989·Granted May 23, 1995·20 cites·11 claims
- 2367US8249787B2Process for monitoring the direction of frictional drive from a vehicle transmission at near-zero vehicle speedGIERER GEORG·Filed 2010·Granted Aug 21, 2012·2 cites·7 claims
- 2467US8070636B2Electroyhydraulic control device of a gear unitGIERER GEORG·Filed 2008·Granted Dec 6, 2011·4 cites·17 claims
- 2566US6418967B1Pressure regulating valveZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1998·Granted Jul 16, 2002·35 cites·19 claims
- 2666US5947867ASafety system for an automatic gearboxZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1997·Granted Sep 7, 1999·23 cites·6 claims
- 2762US7611002B2Apparatus for the operation of a hydrodynamic torque converter and a therewith corresponding converter bypassing clutch of a transmission apparatusZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2007·Granted Nov 3, 2009·3 cites·11 claims
- 2861US6905433B2Device for control of a hydraulically actuatable shifting elementZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2003·Granted Jun 14, 2005·8 cites·15 claims
- 2959US8392080B2Process for monitoring the direction of frictional drive from a vehicle transmission at near-zero vehicle speedGIERER GEORG·Filed 2007·Granted Mar 5, 2013·2 cites·5 claims
- 3058US8806863B2Hydraulic transmission controlGIERER GEORG·Filed 2010·Granted Aug 19, 2014·1 cites·14 claims
- 3157US7628261B2Apparatus for the operation of a hydrodynamic torque converter and a therewith corresponding converter bypassing clutch of a transmission apparatusZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2007·Granted Dec 8, 2009·2 cites·11 claims
- 3256US8311715B2Motor vehicle transmission and method for monitoring frictional engagement in same in a preset neutral or parking positionGIERER GEORG·Filed 2007·Granted Nov 13, 2012·2 cites·15 claims
- 3356US7780572B2Control valve arrangement for controlling a starting clutch of an automatic transmissionZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2006·Granted Aug 24, 2010·2 cites·14 claims
- 3454US6179108B1Device for releasing a security device for a vehicle with an automatic transmission in case of emergencyZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1999·Granted Jan 30, 2001·13 cites·6 claims
- 3553US7617918B2Device for the operation of a starter mechanism that can be brought into active connection with a hydraulic supply circuit of a transmission unitZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2007·Granted Nov 17, 2009·1 cites·27 claims
- 3652US8020685B2Device for the control at least of a hydraulically operable switching element of an automatic transmissionZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2009·Granted Sep 20, 2011·0 cites·7 claims
- 3748US6485393B2Method for controlling a vehicle drive systemZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2001·Granted Nov 26, 2002·3 cites·16 claims
- 3847US5722913AProcess for controlling an automatic gearboxZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1995·Granted Mar 3, 1998·10 cites·8 claims
- 3947US5103930AApparatus for electrohydraulic actuation of a clutch assembly for locking the differential transmission of a motor vehicleZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1988·Granted Apr 14, 1992·11 cites·7 claims
- 4047US4458720AControl valve for a torque converter having a bridge couplingZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1982·Granted Jul 10, 1984·10 cites·4 claims
- 4146US7664580B2Method for operating drive train side components of a motor vehicleZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2006·Granted Feb 16, 2010·1 cites·12 claims
- 4243US7416071B2Braking method for a vehicleZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2004·Granted Aug 26, 2008·5 cites·10 claims
- 4343US6705594B1Seal for intermediate sheet steel of a valve housing for an automatic transmissionZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2000·Granted Mar 16, 2004·2 cites·8 claims
- 4442US6669309B1vibration damper for damping fluid vibrations in a hydraulic systemZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 1999·Granted Dec 30, 2003·13 cites·11 claims
- 4542US2008000746A1Drivetrain arrangement and method for operating a drivetrain arrangementZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2007·Application pending·0 cites
- 4642US2010243079A1Pressure limiting valve and arrangement of a pressure limiting valve for the pilot control of a pressure control valveZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2008·Application pending·0 cites
- 4740US9404574B2Transmission device and method for operating a transmission deviceZIEMER PETER·Filed 2010·Granted Aug 2, 2016·0 cites·8 claims
- 4840US7823710B2Hydraulic control system for a hydrodynamic torque converter comprising a controlled torque converter lockup clutchZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2006·Granted Nov 2, 2010·0 cites·21 claims
- 4940US2004162660A1Reduction of the thermal stress of starting switch elements in automatic gearboxes or in automated manual gearboxesFiled 2002·Application pending·0 cites
- 5039US7258640B2Apparatus for compensating viscous characteristics of hydraulic fluid in a hydraulic pressure lineZAHNRADFABRIK FRIEDRICHSHAFEN·Filed 2004·Granted Aug 21, 2007·0 cites·4 claims
Showing the top 50 of 59 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Georg Gierer files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →