Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5791700 | Locking system for a window | — | 1998-08-11 |
| 4944118 | Welded window construction | — | 1990-07-31 |
| 4689933 | Thermally insulated window sash construction for a casement window | — | 1987-09-01 |
| 4624091 | Thermally insulated window sash construction | — | 1986-11-25 |
| 4257202 | Aluminum frame window with improved thermal insulation and method of making same | — | 1981-03-24 |