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For the Inventor, By the Inventor

Fairport, NY, United States of America

Derek R Lebzelter

USPTO Granted Patents = 16 

Average Co-Inventor Count = 4.2

ph-index = 3

Forward Citations = 37(Granted Patents)


Location History:

  • Rochester, NY (US) (2012 - 2016)
  • Fairport, NY (US) (2012 - 2016)
  • Conneaut, OH (US) (2016 - 2017)

Company Filing History:

goldMedal16 out of 30,943 
 
Gm Global Technolgoy Operations, Inc.
 patents

Years Active: 2012-2017

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16 patents (USPTO):Explore Patents
1. 9853312 - Method for determining membrane protonic resistance of a fuel cell stack (2017-12-26),
2. 9502726 - Cathode humidification unit adapting degradation factor (2016-11-22),
3. 9368817 - In-situ fuel cell stack reconditioning (2016-06-14),
4. 9281532 - Remedial actions for air flow errors in a fuel cell system (2016-03-08),
5. 9231263 - Selectively reacting to the minimum cell voltage drop rate in a fuel cell system (2016-01-05),
6. 9153828 - Method to diagnose fuel cell humidification problems (2015-10-06),
7. 9099706 - Method of providing a calibrating reference voltage and index synchronization sequence for a cell voltage measurement system (2015-08-04),
8. 9099702 - Method for running a fuel cell system with a failed stack health monitor (2015-08-04),
9. 9070921 - Subzero ambient shutdown purge operating strategy for PEM fuel cell system (2015-06-30),
10. 9034530 - Fuel cell stack used as coolant heater (2015-05-19),
11. 9017889 - Frame sequence for a cell voltage measurement system with a low probability of natural occurrence (2015-04-28),
12. 8945785 - Adaptive limitation of standby mode to enhance fuel cell system life (2015-02-03),
13. 8920995 - Systems and methods for predicting polarization curves in a fuel cell system (2014-12-30),
14. 8647783 - Auto-learning of base stack resistance for HFR based RH control (2014-02-11),
15. 8231989 - Method for improving FCS reliability after end cell heater failure (2012-07-31),

Title: The Innovations of Derek R. Lebzelter

Introduction

Derek R. Lebzelter is a notable inventor based in Fairport, NY (US), recognized for his contributions to fuel cell technology. With a total of 16 patents to his name, he has made significant advancements in the field, particularly in methods related to fuel cell performance and efficiency.

Latest Patents

Among his latest patents is a method for determining membrane protonic resistance of a fuel cell stack. This innovative approach involves assessing membrane humidification by evaluating the protonic resistance of a fuel cell stack under humidified conditions. It also includes normalizing the base resistance of the fuel cell stack against that of a reference fuel cell stack. Another significant patent is the cathode humidification unit adapting degradation factor. This invention comprises a method and apparatus designed to enhance the performance of a cathode humidification unit as the membrane in a fuel cell stack degrades over time. An algorithm is employed to compare the sensed humidity profile of the fuel cell stack with a model humidity profile of a cathode humidification unit model, allowing for the calculation of a new degradation factor.

Career Highlights

Derek is currently employed at Gm Global Technology Operations LLC, where he continues to innovate and develop new technologies in the fuel cell sector. His work has been instrumental in advancing the understanding and efficiency of fuel cell systems.

Collaborations

Derek has collaborated with several talented individuals in his field, including John P. Nolan and Daniel T. Folmsbee. Their combined expertise has contributed to the successful development of various projects and patents.

Conclusion

Derek R. Lebzelter's work exemplifies the spirit of innovation in fuel cell technology. His patents and ongoing contributions continue to shape the future of energy solutions.

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