Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5713167 | Glazing system | Ruth Ann Durham | 1998-02-03 |
| 4974364 | Window construction | — | 1990-12-04 |
| 4949506 | Window construction | — | 1990-08-21 |
| 4227345 | Tilt-lock slide for window sash | — | 1980-10-14 |