Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9574392 | Retention system for louvre blades | — | 2017-02-21 |
| 8567124 | Automated window system with an overcenter drive mechanism | — | 2013-10-29 |
| 7963071 | Louvre window system | Robert W. Allen, John Grimshaw, Keith James Chaston | 2011-06-21 |