Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6640389 | Casement window operating assembly | Marlo G. Van Klompenburg, David J. Vande Steeg, Andrew W. Middleswart, Bruce A. Baier, Gregory J. Vetter | 2003-11-04 |
| 5603538 | Casement window sash locking system | — | 1997-02-18 |
| 5092388 | Rollable window screen guide locking assembly | — | 1992-03-03 |
| 5080407 | Removable locking lever for a casement window | — | 1992-01-14 |
| 5060339 | Blower attachment for a vacuum cleaner | — | 1991-10-29 |
| 4850416 | Slat shade operator | — | 1989-07-25 |
| 4274469 | Operator for a slat shade assembly | Herman S. Kuyper, John R. Regal | 1981-06-23 |