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Apparatus and method to apply voltage to fuel cell stack from high voltage system for usage during diagnostic tests |
Joseph Berg |
2019-06-11 |
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Systems and methods for detecting anode contamination in a fuel cell system |
Donald H. Keskula, Mark P. Adams, Swaminatha P. Kumaraguru, Jingxin Zhang |
2018-02-20 |
| 9586541 |
Methods, apparatus, and systems for identification of cells in a network |
Joseph Berg |
2017-03-07 |
| 9537164 |
Through-stack communication method for fuel cell monitoring circuits |
David D. Rea |
2017-01-03 |
| 9419293 |
Systems and methods for measuring high frequency resistance in a fuel cell system |
David J. Reed, Angelo Caruso, Richard P. Corey |
2016-08-16 |
| 9263754 |
Integrated environmentally protective barrier with light blocking and light transmitting features to optically communicate between two electronic devices operating in different environments |
Todd D. Bogumil, Michael F. Zawisa, Mark A. Buffa, David J. Keyes |
2016-02-16 |
| 9099706 |
Method of providing a calibrating reference voltage and index synchronization sequence for a cell voltage measurement system |
David J. Reed, Derek R. Lebzelter |
2015-08-04 |
| 9017889 |
Frame sequence for a cell voltage measurement system with a low probability of natural occurrence |
David J. Reed, Derek R. Lebzelter, Kevin Sampson |
2015-04-28 |
| 8990034 |
Redundancy for improved stack health monitoring reliability |
Jeffrey A. Rock, David J. Reed |
2015-03-24 |
| 8450965 |
Stack-powered fuel cell monitoring device with prioritized arbitration |
David D. Rea, Michael F. Zawisa, Robert S. Foley |
2013-05-28 |
| 8257875 |
Method for collection and communication of measured data within a fuel cell stack |
David D. Rea, Michael F. Zawisa |
2012-09-04 |
| 8206862 |
Method to measure and communicate cell voltage in a fuel cell stack by embedding measurement units on the plate |
Michael F. Zawisa, David D. Rea |
2012-06-26 |
| 8089290 |
Liquid water sensor signal conditioning circuit for use in PEM fuel cells |
Robert L. Fuss |
2012-01-03 |
| 7579824 |
High-precision Rogowski current transformer |
David D. Rea, Michael F. Zawisa |
2009-08-25 |
| 7421356 |
Method and apparatus for measurement of fuel cell high frequency resistance in the presence of large undesirable signals |
David D. Rea, Robert S. Foley, Michael F. Zawisa, Clark G. Hochgraf |
2008-09-02 |
