Issued Patents All Time
Showing 25 most recent of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11971592 | Cable having ribbon stack in a hexagonal arrangement | Badri Gomatam | 2024-04-30 |
| 11735751 | Intelligent fuel cell systems and control logic for smart use of anode header drain valves for FCS bleed and drainage | Xiaofeng Wang, Sergio E. Garcia, Chad Dubois | 2023-08-22 |
| 11641022 | Controlling purge operation for fuel cell assembly | Biju Edamana, Aaron Rogahn, Michael Cartwright | 2023-05-02 |
| 11631873 | Method for controlling a fuel cell system having a hydrogen fuel injector/ejector | Xiaofeng Wang, Chad Dubois, Sergio E. Garcia | 2023-04-18 |
| 11031615 | Method of operating a fuel cell stack having a temporarily disabled drain valve | Xiaofeng Wang, Chad Dubois, Sergio E. Garcia | 2021-06-08 |
| 10971745 | Cell reversal diagnostics for a fuel cell stack | Jingxin Zhang, Andrew J. Maslyn | 2021-04-06 |
| 10726040 | Lossless conversion of database tables between formats | Aditya Kapoor, Vipul Khullar | 2020-07-28 |
| 10581100 | Method of operating a fuel cell stack having a temporarily disabled bleed valve | Chad Dubois, Xiaofeng Wang, Sergio E. Garcia | 2020-03-03 |
| 10439239 | Shutdown method of fuel cell stack and fuel cell system therefor | Michael Cartwright, Pinkhas A. Rapaport, Asao Uenodai | 2019-10-08 |
| 10249893 | Fuel cell architectures, monitoring systems, and control logic for characterizing fluid flow in fuel cell stacks | Jeffrey J. Gagliardo, Chad Dubois, Xiaofeng Wang | 2019-04-02 |
| 10218018 | Fuel cell stack health monitoring using groups of fuel cells | Pinkhas A. Rapaport, Hiromichi Yoshida, Shohei Toyota, Yeh-Hung Lai | 2019-02-26 |
| 10193173 | Electrochemical hydrogen sensor for global/local hydrogen starvation detection in PEM fuel cells | Jingxin Zhang, Balasubramanian Lakshmanan | 2019-01-29 |
| 10050288 | Systems and methods for detecting leaks in a fuel cell system | Stephen D. Pace, Jun Cai | 2018-08-14 |
| 9853312 | Method for determining membrane protonic resistance of a fuel cell stack | Derek R. Lebzelter, John C. Fagley, Megan J. Quick, Rodney J. Rhodes, Sergio E. Garcia +1 more | 2017-12-26 |
| 9564648 | Anode leak location detection | Daniel C. Di Fiore, Steven R. Falta, Matthew A. Lang | 2017-02-07 |
| 9379396 | Controls giving −25° C. freeze start capability to a fuel cell system | Bruce J. Clingerman, Aaron Rogahn, Jun Cai, Joseph C. Gerzseny, Steven D. Burch +1 more | 2016-06-28 |
| 9306230 | Online estimation of cathode inlet and outlet RH from stack average HFR | — | 2016-04-05 |
| 9172103 | Transient inlet relative humidity estimation via adaptive cathode humidification unit model and high frequency resistance | Sergio E. Garcia, Todd K. Preston, Edward George Himes | 2015-10-27 |
| 9105892 | Adaptive method for conversion of external power request to current setpoint to a fuel cell system based on stack performance | Sriram Ganapathy, Kiran Mallavarapu, Stefan W. Lixfeld | 2015-08-11 |
| 9018961 | Diagnosing injector failure via stack voltage response analysis | Daniel C. Di Fiore, John C. Fagley, Steven R. Falta | 2015-04-28 |
| 8906570 | System and method for observing anode fluid composition during fuel cell start-up | Patrick Frost, Daniel I. Harris, Gary M. Robb | 2014-12-09 |
| 8855942 | Anode bleed control strategy for improved water management and hydrogen utilization | Prasad Gade, Jon R. Sienkowski, Balasubramanian Lakshmanan | 2014-10-07 |
| 8771895 | Online anode pressure bias to maximize bleed velocity while meeting emission constraint | Seth E. Lerner, Patrick Frost, Victor W. Logan, Balasubramanian Lakshmanan | 2014-07-08 |
| 8647783 | Auto-learning of base stack resistance for HFR based RH control | Derek R. Lebzelter, John C. Fagley, Megan J. Quick, Rodney J. Rhodes, Sergio E. Garcia +1 more | 2014-02-11 |
| 8450018 | Method to automatically enable/disable stack reconditioning procedure based on fuel cell stack parameter estimation | Sriram Ganapathy, Tayoung Choi, David A. Arthur | 2013-05-28 |