Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8728676 | System and method for optimizing fuel cell purge cycles | — | 2014-05-20 |
| 8563188 | Fuel cell system controller | David J. Edlund, Craig F. Holmes | 2013-10-22 |
| 8133626 | Fuel cell system controller | David J. Edlund, Craig F. Holmes | 2012-03-13 |
| 7971449 | Heat-activated heat-pump systems including integrated expander/compressor and regenerator | Richard B. Peterson, Monte K. Drost | 2011-07-05 |
| 7939211 | System and method for controlling the operation of a fuel processing system | David J. Edlund, William A. Pledger | 2011-05-10 |
| 7846569 | Methods for operating a fuel cell system under reduced load conditions | David J. Edlund, Craig F. Holmes | 2010-12-07 |
| 7771882 | System and method for controlling the operation of a fuel processing system | David J. Edlund, William A. Pledger | 2010-08-10 |
| 7655332 | System and method for optimizing fuel cell purge cycles | — | 2010-02-02 |
| 7208241 | System and method for controlling the operation of a fuel processing system | David J. Edlund, William A. Pledger | 2007-04-24 |
| 7135048 | Volatile feedstock delivery system and fuel processing system incorporating the same | David J. Edlund | 2006-11-14 |
| 7005113 | Steam reforming method and apparatus incorporating a hydrocarbon feedstock | David J. Edlund | 2006-02-28 |
| 6979507 | Fuel cell system controller | David J. Edlund, Craig F. Holmes | 2005-12-27 |
| 6887605 | System and method for optimizing fuel cell purge cycles | — | 2005-05-03 |
| 6811908 | System and method for controlling the operation of a fuel processing system | David J. Edlund, William A. Pledger | 2004-11-02 |
| 6495277 | Fuel cell system controller | David J. Edlund, Craig F. Holmes | 2002-12-17 |
| 6383670 | System and method for controlling the operation of a fuel processing system | David J. Edlund, William A. Pledger | 2002-05-07 |
| 6375906 | Steam reforming method and apparatus incorporating a hydrocarbon feedstock | David J. Edlund | 2002-04-23 |
| 6242120 | System and method for optimizing fuel cell purge cycles | — | 2001-06-05 |
| 5879826 | Proton exchange membrane fuel cell | Peter A. Lehman, Charles E. Chamberlin, Ronald M. Reid | 1999-03-09 |