Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5859523 | Rechargeable battery pack for battery powered devices with a rotatably mounted plug | David S. Nierescher, David E. Jones | 1999-01-12 |
| 5739666 | Rechargeable battery pack for battery powered devices | David S. Nierescher, David E. Jones | 1998-04-14 |