Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7294977 | Lamp dimming system and methods | Paul Eusterbrock, Paul G. Rops | 2007-11-13 |
| 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 |