Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5763872 | Motion actuated night light | — | 1998-06-09 |
| 5644294 | Rescue support apparatus | — | 1997-07-01 |
| 4934136 | Method of operating an emergency power unit | Francis K. Weigand, Michael Koerner | 1990-06-19 |
| 4898000 | Emergency power unit | Francis K. Weigand, Michael Koerner | 1990-02-06 |
| 4777793 | Emergency power unit | Francis K. Weigand, Michael Koerner | 1988-10-18 |
| 4505105 | No-back gas generator and method | — | 1985-03-19 |