Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11353224 | Rooftop exhaust system with automatic motor lockout | Joshua J. Hess, William Brian Griffin | 2022-06-07 |
| 11300317 | Commercial kitchen installation with double wall grease duct | William Brian Griffin, Kyle D. Thompson | 2022-04-12 |