Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11885503 | Pre-fabricated grease duct system | Billy J. Sims, Jason M. Kerner | 2024-01-30 |
| 11397008 | Pre-fabricated grease duct system | Billy J. Sims, Jason M. Kerner | 2022-07-26 |
| D908201 | Ventilation duct | Billy J. Sims, Jason M. Kerner | 2021-01-19 |
| 4724750 | Double-walled chimney | Karen A. Coleman, Bob D. Oberg, Gary L. Reinback | 1988-02-16 |