Pratt; Steven Duane
Patent Applications and Registrations
Patent applications and USPTO patent grants for Pratt; Steven Duane.The latest application filed is for "method and device for limiting crossover in fuel cell systems".
- Pratt; Steven Duane - Fort Lauderdale FL US
- Pratt; Steven Duane - Ft. Lauderdale FL
- Pratt; Steven Duane - Plantation FL
| Patent | Date |
|---|---|
| Method and device for limiting crossover in fuel cell systems Grant 8,993,187 - Kelley , et al. March 31, 2 | 2015-03-31 |
| Method and device for limiting crossover in fuel cell systems Grant 7,282,283 - Kelley , et al. October 16, 2 | 2007-10-16 |
| Two-stage hybrid gas pressure regulator Grant 7,264,896 - Kelley , et al. September 4, 2 | 2007-09-04 |
| Method of operating a fuel cell power source Grant 7,049,015 - Pratt , et al. May 23, 2 | 2006-05-23 |
| Method and device for limiting crossover in fuel cell systems App 20060099465 - Kelley; Ronald James ; et al. | 2006-05-11 |
| Method for humidifying a fuel stream for a direct methanol fuel cell Grant 6,936,361 - Kelley , et al. August 30, 2 | 2005-08-30 |
| Gas storage media, containers, and battery employing the media App 20050053836 - Kelley, Ronald James ; et al. | 2005-03-10 |
| Device housing responsive to an environmental stimulus App 20050036605 - Mulligan, Robert John ; et al. | 2005-02-17 |
| Gas storage media, containers, and battery employing the media App 20050035003 - Kelley, Ronald James ; et al. | 2005-02-17 |
| Electronic device with improved user interface Grant 6,853,368 - Muthuswamy , et al. February 8, 2 | 2005-02-08 |
| Housing including integrated indicia and method of making App 20040253401 - Pratt, Steven Duane ; et al. | 2004-12-16 |
| Method and apparatus for advising a user of a wireless device as to a connection status thereof App 20040204151 - Muthuswamy, Sivakumar ; et al. | 2004-10-14 |
| Method for humidifying a fuel stream for a direct methanol fuel cell App 20040191583 - Kelley, Ronald James ; et al. | 2004-09-30 |
| Gas storage media, containers, and battery employing the media App 20040096607 - Kelley, Ronald James ; et al. | 2004-05-20 |
| Method and device for limiting crossover in fuel cell systems App 20040062957 - Kelley, Ronald James ; et al. | 2004-04-01 |
| Two-stage hybrid gas pressure regulator App 20040033400 - Kelley, Ronald James ; et al. | 2004-02-19 |
| Fuel cell system having a filter element for purifying ambient environmental air App 20040023096 - Pratt, Steven Duane ; et al. | 2004-02-05 |
| Fuel cell having activation mechanism and method for forming same App 20040023082 - Kelly, Ronald James ; et al. | 2004-02-05 |
| Electronic device with improved user interface App 20040004598 - Muthuswamy, Sivakumar ; et al. | 2004-01-08 |
| Device housing having one or more optical fibers App 20030210780 - Pratt, Steven Duane ; et al. | 2003-11-13 |
| Fuel cell power source App 20030194589 - Pratt, Steven Duane ; et al. | 2003-10-16 |
| Device housing responsive to an environmental stimulus App 20030147527 - Mulligan, Robert John ; et al. | 2003-08-07 |
| Adaptable mold base Grant 5,662,946 - Pratt , et al. September 2, 1 | 1997-09-02 |
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