Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4467264 | Battery charger with visual charge indicating means | Ferdinand H. Mullersman | 1984-08-21 |
| 4392102 | Liquid crystal indicator | Raymond K. Sugalski | 1983-07-05 |
| 4379816 | Indicator of full charge for secondary cell or battery thereof | Ferdinand H. Mullersman | 1983-04-12 |
| 4314008 | Thermoelectric temperature stabilized battery system | — | 1982-02-02 |