Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5132176 | Battery state of charge indicator | Allen F. Fiedler, Joseph Szymborski, Mark L. Eggers | 1992-07-21 |
| 4552821 | Sealed nickel-zinc battery | Henry F. Gibbard, Richard C. Murray, Jr., Ronald A. Putt, Claude J. Menard | 1985-11-12 |