Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6427398 | Method of making window frame components having various end using applications | David S. Levine, Jerome Carl Habeck, Dennis Westphal, Stanley Gursky | 2002-08-06 |
| 5379560 | Banded window sash | — | 1995-01-10 |