Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7275352 | Fire retardant panel door and door frame having intumescent materials therein with a 90 minute fire rating | James Jelinski | 2007-10-02 |
| 6745526 | Fire retardant wooden door with intumescent materials | — | 2004-06-08 |
| 6199323 | Double-hung window structure and seals | — | 2001-03-13 |