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2023
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Invention
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Ionizer feedback control.
The ionizer feedback control converts high-voltage signals to feedback... |
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2022
|
Invention
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Occupancy-based fan control. A Heating, Ventilating Air Conditioning (HVAC) fan control method to... |
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2021
|
Invention
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Bipolar ionizer with feedback control. A bipolar ionizer comprising an electronic circuit, microp... |
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Invention
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Smart thermostat fan controller. Detecting a thermostat call for heating or cooling based on dete... |
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Invention
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Balanced bipolar ionizer based on unbalanced high-voltage output. A balanced bipolar ionizer that... |
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2020
|
Invention
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Smart thermostat power control apparatus. Apparatus to continuously charge a smart thermostat bat... |
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Invention
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Fan-on detection and correction. A fan-on Fault Detection Diagnostic (FDD) and correction method ... |
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Invention
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Economizer controller calibration. r). |
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Invention
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Economizer perimeter gap sealing. A method for sealing an economizer perimeter gap to reduce an u... |
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Invention
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Economizer cooling delay correction. A Fault Detection Diagnostic (FDD) correction method for inc... |
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2019
|
Invention
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Thermostat variable fan-off delay. A method for providing a variable fan-off delay after a thermo... |
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|
Invention
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Solid-state common-wire adapter for smart communicating thermostats. A solid-state common-wire ad... |
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Invention
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Fault detection diagnostic variable differential variable delay thermostat. A Fault Detection Dia... |
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2018
|
Invention
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Apparatus and methods to determine economizer faults. An apparatus providing Fault Detection Diag... |
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Invention
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Smart fan controller. The efficient fan controller includes a microprocessor receiving at least o... |
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2017
|
Invention
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Method for a variable differential variable delay thermostat. Apparatus and methods are disclosed... |
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2016
|
Invention
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Fan controller. Method for controlling an HVAC ventilation fan in heating or cooling mode and var... |
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|
Invention
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Fan controller. Apparatus and methods are disclosed for a fan controller. The fan controller dete... |
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Invention
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Efficient fan controller. An efficient fan controller for Heating Ventilating Air Conditioning (H... |
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2014
|
Invention
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External thermostat fan controller. A method for efficient control of a heater ventilation fan. T... |
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2012
|
Invention
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Method for efficient fan control for electric or gas furnaces and heat pumps in heating mode. A m... |
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2011
|
Invention
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External thermostat fan controller. A programmable controller circuit that can be connected direc... |
