Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5292280 | Method and apparatus for controlling ventilation rates and indoor air quality in an HVAC system | George J. Janu, Kirk H. Drees | 1994-03-08 |
| 5289362 | Energy control system | Ronald J. Liebl, Alan J. Bronikowski, Thomas C. Holdorf, Lawrence J. Strojny | 1994-02-22 |