Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11054145 | Downdraft ventilation systems and methods | Kurt Limberg, Brent Lillesand, Richard R. Sinur | 2021-07-06 |
| 10126000 | Downdraft ventilation systems and methods | Kurt Limberg, Brent Lillesand, Richard R. Sinur | 2018-11-13 |