Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5365708 | Door frame system | — | 1994-11-22 |
| 4845911 | Muntin framing system | David L. Steinhart | 1989-07-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5365708 | Door frame system | — | 1994-11-22 |
| 4845911 | Muntin framing system | David L. Steinhart | 1989-07-11 |