Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8207707 | Method and apparatus to provide fixed frequency charging signals to a battery at or near resonance | William S. Hart, John A. Fee, Laszlo Szerenyi | 2012-06-26 |
| 8120324 | Method and apparatus to provide battery rejuvenation at or near resonance | John A. Fee | 2012-02-21 |