Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7669432 | Evaporator pressure regulator control and diagnostics | Albert W. Maier, John R. Aggers, Richard Vogh, Timothy D. Campbell, Scott Michael Gelber | 2010-03-02 |
| 7287396 | Evaporator pressure regulator control and diagnostics | Albert W. Maier, John R. Aggers, Richard Vogh, Timothy D. Campbell, Scott Michael Gelber | 2007-10-30 |
| 4473183 | Temperature dependent duty cycler control system | James R. Herdeman | 1984-09-25 |
| 4347576 | Load management control apparatus with improved duty cycle operation | Robert N. Norman | 1982-08-31 |