Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5183712 | Battery having reserve cell and three or more terminals | Donald T. Beldock | 1993-02-02 |
| 5169732 | Sealed battery with integral reserve cell and switch | Donald T. Beldock, Frank R. McLarnon | 1992-12-08 |