Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5147244 | Ventilation system including vent controller apparatus | — | 1992-09-15 |
| 4832260 | Emergency ventilation system | — | 1989-05-23 |
| 4666082 | Temperature responsive pneumatic control device | — | 1987-05-19 |
| 4597324 | Active ridge vent | — | 1986-07-01 |
| 4534278 | Livestock confinement building wall-vent controller | — | 1985-08-13 |