Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4431713 | Method for adapting high voltage cells or batteries for lower volt rated applications | John R. Fehling, John P. Mathews | 1984-02-14 |
| 4350745 | Electrochemical cells having hydrogen gas absorbing agent | Frank E. Parsen | 1982-09-21 |