Patents per Year
Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 6840011 | Window panel balance apparatus and method | Roy A. Thompson, Douglas W. Kroncke, John C. Costello, David Chastain, Jack D. Gundlach +8 more | 2005-01-11 | $1,117,000 |
| 5822931 | Method and apparatus for extending a frame | Todd W. Bruchu | 1998-10-20 | $151,000 |
| 5566507 | Double-hung tilting sash type window system | Melvin J. Schmidt, Thomas P. Coach, Glenn C. Hause, James P. Wyman, Robert Hendricks +2 more | 1996-10-22 | $269,000 |
| 5555684 | Method and apparatus for securing interior trim to a window frame | Todd W. Bruchu | 1996-09-17 | $308,000 |
| 5544450 | Double-hung tilting sash type window system | Melvin J. Schmidt, Thomas P. Coach, Glenn C. Hause, James P. Wyman, Robert Hendricks +2 more | 1996-08-13 | $273,000 |
| 5086601 | Joint structure | Harold H. Evans | 1992-02-11 | $257,000 |
| 4214684 | Ball holder | — | 1980-07-29 |