Inventor · disambiguated record
Derek R. Lebzelter
Also filed as: LEBZELTER DEREK R
16 granted patents·1 pending application·32 citations·filing 2007–2014
89Inventor score
Files withGM GLOBAL TECH OPERATIONS INC6GM GLOBAL TECH OPERATIONS LLC2LEBZELTER DEREK R2REED DAVID J2CARTWRIGHT MICHAEL1
Top patents by PatentIndex Score
17 records- 0192US9281532B2Remedial actions for air flow errors in a fuel cell systemGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted Mar 8, 2016·9 cites·20 claims
- 0291US8920995B2Systems and methods for predicting polarization curves in a fuel cell systemGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted Dec 30, 2014·11 cites·20 claims
- 0379US9070921B2Subzero ambient shutdown purge operating strategy for PEM fuel cell systemCARTWRIGHT MICHAEL·Filed 2012·Granted Jun 30, 2015·3 cites·20 claims
- 0473US8192885B2Shutdown strategy for enhanced water managementRAPAPORT PINKHAS A·Filed 2009·Granted Jun 5, 2012·2 cites·18 claims
- 0572US9153828B2Method to diagnose fuel cell humidification problemsGM GLOBAL TECH OPERATIONS INC·Filed 2012·Granted Oct 6, 2015·1 cites·20 claims
- 0669US9034530B2Fuel cell stack used as coolant heaterLEBZELTER DEREK R·Filed 2008·Granted May 19, 2015·2 cites·21 claims
- 0768US8231989B2Method for improving FCS reliability after end cell heater failureLEBZELTER DEREK R·Filed 2007·Granted Jul 31, 2012·2 cites·22 claims
- 0867US9368817B2In-situ fuel cell stack reconditioningFOLMSBEE DANIEL T·Filed 2009·Granted Jun 14, 2016·2 cites·17 claims
- 0953US9853312B2Method for determining membrane protonic resistance of a fuel cell stackGM GLOBAL TECH OPERATIONS LLC·Filed 2014·Granted Dec 26, 2017·0 cites·5 claims
- 1053US9502726B2Cathode humidification unit adapting degradation factorGM GLOBAL TECH OPERATIONS LLC·Filed 2013·Granted Nov 22, 2016·0 cites·20 claims
- 1152US9099702B2Method for running a fuel cell system with a failed stack health monitorGM GLOBAL TECH OPERATIONS INC·Filed 2012·Granted Aug 4, 2015·0 cites·18 claims
- 1252US8647783B2Auto-learning of base stack resistance for HFR based RH controlSINHA MANISH·Filed 2010·Granted Feb 11, 2014·0 cites·12 claims
- 1350US2014120440A1Coolant flow pulsing in a fuel cell systemGM GLOBAL TECH OPERATIONS INC·Filed 2012·Application pending·0 cites
- 1448US8945785B2Adaptive limitation of standby mode to enhance fuel cell system lifeHARRIS DANIEL I·Filed 2012·Granted Feb 3, 2015·0 cites·20 claims
- 1547US9231263B2Selectively reacting to the minimum cell voltage drop rate in a fuel cell systemGM GLOBAL TECH OPERATIONS INC·Filed 2013·Granted Jan 5, 2016·0 cites·17 claims
- 1645US9099706B2Method of providing a calibrating reference voltage and index synchronization sequence for a cell voltage measurement systemREED DAVID J·Filed 2011·Granted Aug 4, 2015·0 cites·20 claims
- 1736US9017889B2Frame sequence for a cell voltage measurement system with a low probability of natural occurrenceREED DAVID J·Filed 2011·Granted Apr 28, 2015·0 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →