Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855192 | Fuel cell clean waste water discharge system | — | 1989-08-08 |
| 4835072 | Apparatus employing an aqueous solution | Wolfgang Vogel | 1989-05-30 |
| 4824738 | Controlling oxygen concentrations in fuel cell cooling water loops | Robert Misage, Daniel L. D'Aquila | 1989-04-25 |
| 4816040 | Removal of ammonia and carbon dioxide from fuel cell stack water system by steam stripping | Leonard J. Bonville, Richard A. Sederquist | 1989-03-28 |
| 4804591 | Fuel cell powerplant employing an aqueous solution | Wolfgang Vogel, William A. Taylor | 1989-02-14 |
| 4801356 | Removal of ammonia from fuel cell power plant water system | — | 1989-01-31 |