Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5570837 | Programmable digital thermostat with means for enabling temporary connection of a battery thereto | David L. Perry, Horst Jaeschke, Krishna H. Patil | 1996-11-05 |
| 5379794 | Gas control valve having polymeric material body combined with thermally responsive gas shutoff valve having metallic body | — | 1995-01-10 |
| 5224649 | Digital thermostat with single rotary encoder switch for establishing set point temperature | William P. Butler | 1993-07-06 |
| 5197667 | HVAC low power usage circulation blower | Benjamin Bowsky, Jerry D. Lloyd, Pradeep K. Sood | 1993-03-30 |
| 5022460 | Control of staged heating and cooling apparatus by a four-wire thermostat | — | 1991-06-11 |
| 4898229 | Thermostat with integral means for detecting out-of-phase connection of a two-transformer power source | Donald E. Donnelly, Bartholomew L. Toth | 1990-02-06 |
| 4828016 | Programmable electronic thermostat with means for enabling economical recovery | Dwain F. Moore | 1989-05-09 |
| 4621336 | Visual display of time schedule in a programmable thermostat | — | 1986-11-04 |
| 4615282 | Hot surface ignition system control module with accelerated igniter warm-up test program | — | 1986-10-07 |
| 4604046 | Direct ignition gas burner control system | Carl J. Mueller, Dennis M. Rippelmeyer, John S. Haefner | 1986-08-05 |
| 4444551 | Direct ignition gas burner control system | Carl J. Mueller, Dennis M. Rippelmeyer, John S. Haefner | 1984-04-24 |