Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11519216 | Chassis based fenestration systems | Gary J. Spoering, Rolf J. Ohrstrom | 2022-12-06 |
| 10934765 | Chassis based fenestration systems | Gary J. Spoering, Rolf J. Ohrstrom | 2021-03-02 |
| 10550623 | Chassis based fenestration systems | Gary J. Spoering, Rolf J. Ohrstrom | 2020-02-04 |
| 9140059 | Venetian type blind operator | Douglas A. Kirk, Michael Williamson, Daniel Dew | 2015-09-22 |