Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4328927 | Temperature responsive ventilator construction | — | 1982-05-11 |
| 4249460 | Wall ventilator construction | — | 1981-02-10 |
| 4243175 | Temperature regulated wall ventilator construction | — | 1981-01-06 |
| 4231514 | Automatic ventilator | — | 1980-11-04 |
| 4210279 | Temperature-responsive automatic ventilator | — | 1980-07-01 |