Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6495981 | Motorized actuator with a variable stall level | Gary A. Romanowich, Gerald A. Duenkel | 2002-12-17 |
| 5852333 | Electric actuator return-to-normal using capacitor energy storage with regulated output | Gerald A. Duenkel | 1998-12-22 |
| 5289362 | Energy control system | Ronald J. Liebl, Alan J. Bronikowski, Thomas C. Holdorf, Mark W. Tellier | 1994-02-22 |
| 4497031 | Direct digital control apparatus for automated monitoring and control of building systems | Paul H. Froehling, Jude R. Anders, James M. Rehberger | 1985-01-29 |