Rolf L. Strand
34Patents
14h-index
34Co-inventors
81Inventor score
Filing activity: Sep 14, 1981 → Aug 14, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5314004A | Thermostat for a variable capacity HVAC and method for providing a ramping set point on a setback thermostat | Emerging Cross-Sectional Technologies | 107 | Expired |
| US5346129A | Indoor climate controller system adjusting both dry-bulb temperature and wet-bulb or dew point temperature in the enclosure | Mechanical Engineering; Lighting; Heating | 81 | Expired |
| US6880548B2 | Warm air furnace with premix burner | Mechanical Engineering; Lighting; Heating | 76 | Expired |
| US7241135B2 | Feedback control for modulating gas burner | Mechanical Engineering; Lighting; Heating | 46 | Expired |
| US6050281A | Fail-safe gas valve system with solid-state drive circuit | Emerging Cross-Sectional Technologies | 45 | Expired |
| US7123020B2 | System and method of fault detection in a warm air furnace | Mechanical Engineering; Lighting; Heating | 42 | Expired |
| US6892547B2 | Cooling set point control | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US5399926A | Connected processing systems including mutual power off and signal path disconnect detection | Electricity | 32 | Expired |
| US6923643B2 | Premix burner for warm air furnace | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US8322312B2 | Water heater stacking detection and control | Mechanical Engineering; Lighting; Heating | 26 | Active |
| USD315519S | Thermostat | General | 25 | Expired |
| US4452417A | Vibration isolating motor mount | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US6208263A | Multiple value multiple owner message class | Electricity | 18 | Expired |
| US5309730A | Thermostat for a gas engine heat pump and method for providing for engine idle prior to full speed or shutdown | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US5865612A | Hot surface ignitor | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US10473351B2 | HVAC control with a remote user interface and a remote temperature sensor | Physics | 10 | Active |
| US7538297B2 | Appliance control with ground reference compensation | Mechanical Engineering; Lighting; Heating | 10 | Active |
| US9494320B2 | Method and system for starting an intermittent flame-powered pilot combustion system | Mechanical Engineering; Lighting; Heating | 9 | Active |
| US8875664B2 | Water heater stacking detection and control | Mechanical Engineering; Lighting; Heating | 7 | Active |
| USD317268S | Thermostat | General | 5 | Expired |
| US10208954B2 | Method and system for controlling an ignition sequence for an intermittent flame-powered pilot combustion system | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US4788520A | Ratchet means switch operator | Electricity | 4 | Expired |
| USD895549S1 | Heat pump controller | General | 4 | Active |
| US10402358B2 | Module auto addressing in platform bus | Physics | 2 | Active |
| US10429068B2 | Method and system for starting an intermittent flame-powered pilot combustion system | Mechanical Engineering; Lighting; Heating | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.