Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11959636 | Passive and no-loss weather cap for protection of wind induced downdraft in sensitive exhaust system | Dennis J. Kilsdonk | 2024-04-16 |
| 11274825 | Passive and no-loss weather cap for protection of wind induced downdraft in sensitive exhaust systems | Dennis J. Kilsdonk | 2022-03-15 |