Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7977922 | Battery charger for aircraft emergency egress batteries | Ralph C. Collins | 2011-07-12 |
| 7679335 | Battery charger for aircraft emergency egress batteries | Ralph C. Collins | 2010-03-16 |
| 7285959 | Battery housing and battery analyzer | Ralph C. Collins | 2007-10-23 |