Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4726092 | Casement window hinge | John C. Tacheny | 1988-02-23 |
| 4715089 | Telescoping pole crank assembly | — | 1987-12-29 |
| 4658473 | Concealed freezer hinge | — | 1987-04-21 |
| 4521993 | Chain operator for a window | John C. Tacheny | 1985-06-11 |