Derek R. Lebzelter

Person

Conneaut, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method for determining membrane protonic resistance of a fuel cell...
- Patent number 9,853,312
- Issue date Dec 26, 2017
- GM Global Technology Operations LLC
- Manish Sinha
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode humidification unit adapting degradation factor
- Patent number 9,502,726
- Issue date Nov 22, 2016
- GM Global Technology Operations LLC
- John P. Nolan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
In-situ fuel cell stack reconditioning
- Patent number 9,368,817
- Issue date Jun 14, 2016
- GL Global Technology Operations LLC
- Daniel T. Folmsbee
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Remedial actions for air flow errors in a fuel cell system
- Patent number 9,281,532
- Issue date Mar 8, 2016
- GM Global Technology Operations LLC
- Derek R. Lebzelter
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Selectively reacting to the minimum cell voltage drop rate in a fue...
- Patent number 9,231,263
- Issue date Jan 5, 2016
- GM Global Technology Operations LLC
- Derek R. Lebzelter
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Method to diagnose fuel cell humidification problems
- Patent number 9,153,828
- Issue date Oct 6, 2015
- GM Global Technology Operations LLC
- Derek R. Lebzelter
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Method of providing a calibrating reference voltage and index synch...
- Patent number 9,099,706
- Issue date Aug 4, 2015
- GM Global Technology Operations LLC
- David J. Reed
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Method for running a fuel cell system with a failed stack health mo...
- Patent number 9,099,702
- Issue date Aug 4, 2015
- GM Global Technology Operations LLC
- Derek R. Lebzelter
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Subzero ambient shutdown purge operating strategy for PEM fuel cell...
- Patent number 9,070,921
- Issue date Jun 30, 2015
- GM Global Technology Operations LLC
- Michael Cartwright
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Fuel cell stack used as coolant heater
- Patent number 9,034,530
- Issue date May 19, 2015
- GM Global Technology Operations LLC
- Derek R Lebzelter
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Frame sequence for a cell voltage measurement system with a low pro...
- Patent number 9,017,889
- Issue date Apr 28, 2015
- GM Global Technology Operations LLC
- David J. Reed
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Adaptive limitation of standby mode to enhance fuel cell system life
- Patent number 8,945,785
- Issue date Feb 3, 2015
- GM Global Technology Operations LLC
- Daniel I. Harris
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Systems and methods for predicting polarization curves in a fuel ce...
- Patent number 8,920,995
- Issue date Dec 30, 2014
- GM Global Technology Operations LLC
- Derek R. Lebzelter
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Auto-learning of base stack resistance for HFR based RH control
- Patent number 8,647,783
- Issue date Feb 11, 2014
- GM Global Technology Operations LLC
- Manish Sinha
- G01 - MEASURING TESTING
Information Patent Grant
Method for improving FCS reliability after end cell heater failure
- Patent number 8,231,989
- Issue date Jul 31, 2012
- GM Global Technology Operations LLC
- Derek R Lebzelter
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Shutdown strategy for enhanced water management
- Patent number 8,192,885
- Issue date Jun 5, 2012
- GM Global Technology Operations LLC
- Pinkhas A. Rapaport
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Patents Applicationslast 30 patents

Information Patent Application
SYSTEMS AND METHODS FOR PREDICTING POLARIZATION CURVES IN A FUEL CE...
- Publication number 20140272652
- Publication date Sep 18, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- DEREK R. LEBZELTER
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
REMEDIAL ACTIONS FOR AIR FLOW ERRORS IN A FUEL CELL SYSTEM
- Publication number 20140272654
- Publication date Sep 18, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Derek R. Lebzelter
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CATHODE HUMIDIFICATION UNIT ADAPTING DEGREDATION FACTOR
- Publication number 20140272630
- Publication date Sep 18, 2014
- John P. Nolan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SELECTIVELY REACTING TO THE MINIMUM CELL VOLTAGE DROP RATE IN A FUE...
- Publication number 20140205924
- Publication date Jul 24, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Derek R. Lebzelter
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD TO DIAGNOSE FUEL CELL HUMIDIFICATION PROBLEMS
- Publication number 20140186726
- Publication date Jul 3, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Derek R. Lebzelter
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR RUNNING A FUEL CELL SYSTEM WITH A FAILED STACK HEALTH MO...
- Publication number 20140162159
- Publication date Jun 12, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Derek R. Lebzelter
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COOLANT FLOW PULSING IN A FUEL CELL SYSTEM
- Publication number 20140120440
- Publication date May 1, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- John P. Nolan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR DETERMINING MEMBRANE PROTONIC RESISTANCE OF A FUEL CELL...
- Publication number 20140120434
- Publication date May 1, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Manish Sinha
- G01 - MEASURING TESTING
Information Patent Application
SUBZERO AMBIENT SHUTDOWN PURGE OPERATING STRATEGY FOR PEM FUEL CELL...
- Publication number 20130260185
- Publication date Oct 3, 2013
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Michael Cartwright
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ADAPTIVE LIMITATION OF STANDBY MODE TO ENHANCE FUEL CELL SYSTEM LIFE
- Publication number 20130177826
- Publication date Jul 11, 2013
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Daniel I. HARRIS
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF PROVIDING A CALIBRATING REFERENCE VOLTAGE AND INDEX SYNCH...
- Publication number 20130004871
- Publication date Jan 3, 2013
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David J. Reed
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FRAME SEQUENCE FOR A CELL VOLTAGE MEASUREMENT SYSTEM WITH A LOW PRO...
- Publication number 20130002232
- Publication date Jan 3, 2013
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David J. Reed
- G01 - MEASURING TESTING
Information Patent Application
AUTO-LEARNING OF BASE STACK RESISTANCE FOR HFR BASED RH CONTROL
- Publication number 20110189569
- Publication date Aug 4, 2011
- GM Global Technology Operations, Inc.
- Manish Sinha
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
IN-SITU FUEL CELL STACK RECONDITIONING
- Publication number 20110091780
- Publication date Apr 21, 2011
- GM Global Technology Operations, Inc.
- Daniel T. Folmsbee
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
SHUTDOWN STRATEGY FOR ENHANCED WATER MANAGEMENT
- Publication number 20100190078
- Publication date Jul 29, 2010
- GM Global Technology Operations, Inc.
- Pinkhas A. Rapaport
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
FUEL CELL STACK USED AS COOLANT HEATER
- Publication number 20100035097
- Publication date Feb 11, 2010
- GM Global Technology Operations, Inc.
- Derek R. Lebzelter
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Method for Improving FCS Reliability After End Cell Heater Failure
- Publication number 20090110966
- Publication date Apr 30, 2009
- GM Global Technology Operations, Inc.
- Derek R. Lebzelter
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Derek R. Lebzelter

Person

Patents Grantslast 30 patents

Method for determining membrane protonic resistance of a fuel cell...

Cathode humidification unit adapting degradation factor

In-situ fuel cell stack reconditioning

Remedial actions for air flow errors in a fuel cell system

Selectively reacting to the minimum cell voltage drop rate in a fue...

Method to diagnose fuel cell humidification problems

Method of providing a calibrating reference voltage and index synch...

Method for running a fuel cell system with a failed stack health mo...

Subzero ambient shutdown purge operating strategy for PEM fuel cell...

Fuel cell stack used as coolant heater

Frame sequence for a cell voltage measurement system with a low pro...

Adaptive limitation of standby mode to enhance fuel cell system life

Systems and methods for predicting polarization curves in a fuel ce...

Auto-learning of base stack resistance for HFR based RH control

Method for improving FCS reliability after end cell heater failure

Shutdown strategy for enhanced water management

Patents Applicationslast 30 patents

SYSTEMS AND METHODS FOR PREDICTING POLARIZATION CURVES IN A FUEL CE...

REMEDIAL ACTIONS FOR AIR FLOW ERRORS IN A FUEL CELL SYSTEM

CATHODE HUMIDIFICATION UNIT ADAPTING DEGREDATION FACTOR

SELECTIVELY REACTING TO THE MINIMUM CELL VOLTAGE DROP RATE IN A FUE...

METHOD TO DIAGNOSE FUEL CELL HUMIDIFICATION PROBLEMS

METHOD FOR RUNNING A FUEL CELL SYSTEM WITH A FAILED STACK HEALTH MO...

COOLANT FLOW PULSING IN A FUEL CELL SYSTEM

METHOD FOR DETERMINING MEMBRANE PROTONIC RESISTANCE OF A FUEL CELL...

SUBZERO AMBIENT SHUTDOWN PURGE OPERATING STRATEGY FOR PEM FUEL CELL...

ADAPTIVE LIMITATION OF STANDBY MODE TO ENHANCE FUEL CELL SYSTEM LIFE

METHOD OF PROVIDING A CALIBRATING REFERENCE VOLTAGE AND INDEX SYNCH...

FRAME SEQUENCE FOR A CELL VOLTAGE MEASUREMENT SYSTEM WITH A LOW PRO...

AUTO-LEARNING OF BASE STACK RESISTANCE FOR HFR BASED RH CONTROL

IN-SITU FUEL CELL STACK RECONDITIONING

SHUTDOWN STRATEGY FOR ENHANCED WATER MANAGEMENT

FUEL CELL STACK USED AS COOLANT HEATER

Method for Improving FCS Reliability After End Cell Heater Failure