John T. Adams

Thermostat having simple battery level detection

Energy saving thermostat

Self-adjusting recovery algorithm for a microprocessor-controlled setback thermostat

Furnace fan control

AC synchronization with miswire detection for a multi-node serial communication system

Flame rectification sensor employing pulsed excitation

Microcontroller and system for controlling trial times in a furnace system

Fail-safe gas valve system with solid-state drive circuit

Electronic thermostat having correction for internally generated heat from load switching

Interface circuit for low power drain microprocessor-based thermostat