Inventor · disambiguated record
John A. Grogg
Also filed as: GROGG JOHN · GROGG JOHN A · GROGG JOHN ALLEN
21 granted patents·3 pending applications·372 citations·filing 2002–2025
95Inventor score
Files withEATON CORP10TORQUE TRACTION TECH INC5EATON INTELLIGENT POWER LTD3GROGG JOHN ALLEN3DANA CORP1
Top patents by PatentIndex Score
24 records- 0197US6725989B1Variably controlled torque coupling device for on-demand all-wheel drive drivetrainsTORQUE TRACTION TECH INC·Filed 2002·Granted Apr 27, 2004·61 cites·28 claims
- 0296US7318511B2Coupling device independent of differential speedEATON CORP·Filed 2005·Granted Jan 15, 2008·24 cites·9 claims
- 0396US6733411B1Electronically controlled hydraulic actuator for limited slip differential assemblyDANA CORP·Filed 2002·Granted May 11, 2004·72 cites·18 claims
- 0494US6699151B2Solenoid valve controlled all-wheel drive hydraulic coupling assemblyTORQUE TRACTION TECH INC·Filed 2002·Granted Mar 2, 2004·46 cites·27 claims
- 0592US6692396B1Solenoid actuated variable pressure relief valve assembly for limited slip differential assemblyTORQUE TRACTION TECH INC·Filed 2002·Granted Feb 17, 2004·46 cites·27 claims
- 0686US8914213B2Method and apparatus for real time estimation of road surface friction coefficientEATON CORP·Filed 2013·Granted Dec 16, 2014·11 cites·22 claims
- 0785US9598067B2Control strategy for AWD connection and disconnectionEATON CORP·Filed 2013·Granted Mar 21, 2017·10 cites·19 claims
- 0885US7801657B2Stability-enhanced traction and yaw control using electronically controlled limited-slip differentialEATON CORP·Filed 2007·Granted Sep 21, 2010·21 cites·3 claims
- 0985US7337053B2Stability-enhanced traction control with electrically controlled center couplerEATON CORP·Filed 2007·Granted Feb 26, 2008·19 cites·4 claims
- 1084US8584786B2Idle-able power transfer unitGROGG JOHN ALLEN·Filed 2008·Granted Nov 19, 2013·8 cites·22 claims
- 1183US11254207B2Method for compensating clutch torque in an electronic limited slip differentialEATON INTELLIGENT POWER LTD·Filed 2019·Granted Feb 22, 2022·2 cites·5 claims
- 1283US8596436B2Idle-able auxiliary drive systemGROGG JOHN ALLEN·Filed 2010·Granted Dec 3, 2013·6 cites·20 claims
- 1379US6742640B1Wrap spring activated torque transfer deviceTORQUE TRACTION TECH INC·Filed 2002·Granted Jun 1, 2004·15 cites·28 claims
- 1477US2025189027A1Systems and methods for coupling a lock plate and actuatorEATON INTELLIGENT POWER LTD·Filed 2025·Application pending·0 cites
- 1572US2025189028A1Compact direct-acting e-locker and methods thereforEATON INTELLIGENT POWER LTD·Filed 2025·Application pending·0 cites
- 1671US8474349B2Idle-able auxiliary drive systemGROGG JOHN ALLEN·Filed 2009·Granted Jul 2, 2013·6 cites·20 claims
- 1765US9248833B2Predictive vehicle stability control methodEATON CORP·Filed 2014·Granted Feb 2, 2016·2 cites·21 claims
- 1863US9695884B2Dual piston disconnect actuator for power transfer unitEATON CORP·Filed 2013·Granted Jul 4, 2017·1 cites·20 claims
- 1961USD723063SHydraulic control unit having unitary sump and accumulator housingEATON CORP·Filed 2013·Granted Feb 24, 2015·9 cites·1 claims
- 2054US7077779B2Solenoid actuated variable pressure relief valve assembly for torque transfer assemblyTORQUE TRACTION TECH INC·Filed 2003·Granted Jul 18, 2006·6 cites·25 claims
- 2153USD744542SHydraulic control unit having unitary sump and accumulator housingEATON CORP·Filed 2014·Granted Dec 1, 2015·6 cites·1 claims
- 2251US10955182B2Dynamic packing systemFRESHREALM LLC·Filed 2018·Granted Mar 23, 2021·1 cites·20 claims
- 2340US8550952B2Self-contained hydraulic torque modulating deviceGROGG JOHN A·Filed 2011·Granted Oct 8, 2013·0 cites·20 claims
- 2440US2016160982A1Hydraulic control unit having interface plate disposed between housing and pumpEATON CORP·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →