Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6722082 | Window having a hinged weatherstrip | James L. Peterson, Richard Fischer | 2004-04-20 |
| 5566507 | Double-hung tilting sash type window system | Melvin J. Schmidt, Glenn C. Hause, Dennis A. Galowitz, James P. Wyman, Robert Hendricks +2 more | 1996-10-22 |
| 5544450 | Double-hung tilting sash type window system | Melvin J. Schmidt, Glenn C. Hause, Dennis A. Galowitz, James P. Wyman, Robert Hendricks +2 more | 1996-08-13 |
| 4726147 | Slideable panel unit interlock | Scott R. Beske, Jeffrey M. Lynn | 1988-02-23 |