Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11208840 | Soft roll-up door with fall protection | — | 2021-12-28 |
| 10973325 | Desk top safety partition | — | 2021-04-13 |
| 8302903 | Aircraft attitude control configuration | David L. Hagen | 2012-11-06 |
| 8074925 | Aircraft attitude control configuration | David L. Hagen | 2011-12-13 |
| 7581696 | Aircraft attitude control configuration | David L. Hagen | 2009-09-01 |
| 6843447 | Vertical take-off and landing aircraft | — | 2005-01-18 |
| 5934352 | Garage door panel construction | — | 1999-08-10 |