Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7327122 | Battery heating circuit | — | 2008-02-05 |
| 6900615 | Battery discharge apparatus with light activated battery discharge circuit | — | 2005-05-31 |
| 5133212 | Method and apparatus for measuring the liquid level of a containment tank subject to external forces | Laurence M. Grills | 1992-07-28 |