Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7322619 | Integrated lock and tilt-latch mechanism for a sliding window | Douglas A. Nolte, Clark Velzke, Edward J. Subliskey, Anthony J. Rotondi, Glen M. Wolf | 2008-01-29 |
| 5467503 | Handle and cover assembly for a window operator | Douglas A. Nolte, Gregory J. Vetter, Dennis Krampotich | 1995-11-21 |