Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5634590 | Direct digital control thermostat | William H. Gorski, WAYNE S. LAUER | 1997-06-03 |
| 5207379 | Cascaded control apparatus for controlling unit ventilators | Darryl G. Hurmi, Paul R. Bontrager | 1993-05-04 |