Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8463565 | LED flashlight with battery life indicator | Ralph F. Osterhout, Michael J. Keating | 2013-06-11 |
| 8104915 | LED flashlight with battery life indicator | Ralph F. Osterhout, Michael J. Keating | 2012-01-31 |