Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6672020 | Universal roof scuttle | Gary Dabrowski | 2004-01-06 |
| 6560931 | Hatch assembly with modular installation construction and hatch cover lift assembly | — | 2003-05-13 |
| 5927012 | Emergency release latch mechanism for smoke hatch | Won Suk Surh | 1999-07-27 |