Inventor · disambiguated record
Gregory J. Speckhart
Also filed as: SPECKHART GREGORY J · SPECKHART GREGORY JAY
12 granted patents·3 pending applications·56 citations·filing 1999–2023
89Inventor score
Top patents by PatentIndex Score
15 records- 0181US9722445B2Control of hybrid energy storage system for high pulse loadCATERPILLAR INC·Filed 2015·Granted Aug 1, 2017·4 cites·20 claims
- 0281US8004226B2Method and system for detecting a failed current sensor in a three-phase machineCATERPILLAR INC·Filed 2008·Granted Aug 23, 2011·13 cites·19 claims
- 0377US9729008B2Life degradation mitigation for transient response energy storageCATERPILLAR INC·Filed 2014·Granted Aug 8, 2017·6 cites·20 claims
- 0476US7511449B2Electric motor system implementing vector and slip controlCATERPILLAR INC·Filed 2006·Granted Mar 31, 2009·11 cites·18 claims
- 0574US11894682B2Methods and systems for off-grid load stabilization of energy distribution systemsCATERPILLAR INC·Filed 2020·Granted Feb 6, 2024·1 cites·20 claims
- 0674US8946915B2Adaptive variable speed genset controlCATERPILLAR INC·Filed 2013·Granted Feb 3, 2015·3 cites·20 claims
- 0762US6508107B2Method and apparatus for determining an oil grade of an actuating fluidCATERPILLAR INC·Filed 2002·Granted Jan 21, 2003·8 cites·6 claims
- 0859US2025192555A1Grid firming inverter for fast voltage support in microgridCATERPILLAR INC·Filed 2023·Application pending·0 cites
- 0955US12066502B2Open phase detectionCATERPILLAR INC·Filed 2021·Granted Aug 20, 2024·0 cites·20 claims
- 1054US8242735B2Method and system for temperature-based power converter controlHEIN BRUCE H·Filed 2008·Granted Aug 14, 2012·4 cites·14 claims
- 1152US12431815B2Start-up control for multilevel dual active bridge converterCATERPILLAR INC·Filed 2023·Granted Sep 30, 2025·0 cites·20 claims
- 1244US2014265569A1Transient assist using starting battery in variable speed gensetCATERPILLAR INC·Filed 2013·Application pending·0 cites
- 1340US6715467B2Method and apparatus for engine brakingCATERPILLAR INC·Filed 2002·Granted Apr 6, 2004·3 cites·19 claims
- 1440US2013002027A1Uninterruptible power supplyCATERPILLAR INC·Filed 2011·Application pending·0 cites
- 1532US6415652B1Method and apparatus for determining an oil grade of an actuating fluidCATERPILLAR INC·Filed 1999·Granted Jul 9, 2002·3 cites·14 claims
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