Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9939148 | Portable and reconfigurable emergency lighting device | — | 2018-04-10 |
| 7841292 | Tactile fire escape system | Daniel J. Halberg | 2010-11-30 |
| 5215361 | Prefabricated frame for wood panel assembly | Thomas E. Brock, Jr., Karen S. Besselsen, Kenneth J. Burke, Orrin W. DeJonge, John J. Hasbany +5 more | 1993-06-01 |