Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8097544 | Rated fire frame and door frame / jamb | — | 2012-01-17 |
| 7655580 | Fire resistant panel and method of making | — | 2010-02-02 |
| 7279437 | Rated fire door core and method of making | Richard H. Kai | 2007-10-09 |