Refrigerant Leak Detection and Mitigation System and Method" "failsafe Gas Leak Detection and Mitigation System and Method" and "hvac Air Treatment System and Method

US 11,326,798 and US 11,796,200, assigned to Kenneth Ray Green and Douglas Hiram Morse, cover heating, ventilation, and air conditioning (HVAC) systems, and specifically the detection and mitigation of refrigerant leaks and hydrocarbon-based gas (HBG) leaks (HGL) within these HVAC systems, and are available for sale through IPApproach.

US Patents

2 granted

Assignee

Kenneth Ray Green and Douglas Hiram Morse

Availability

For Sale

Patents Included

• US 11,326,798↗
• US 11,796,200↗

Technology Highlights

• The invention is designed to detect the cause of the refrigerant leak and provide an indication of the failing refrigerant coil within the multiple refrigerant paths within the HVAC system.
• The invention mitigates the refrigerant leak by isolating a failing refrigerant coil within the system and allow the HVAC system to continue functioning in a fallback operational mode.
• The invention can be used to both detect true refrigerant leaks and close solenoid valves and/or electrical contractors to inhibit HVAC operation and isolate failing components to mitigate refrigerant loss in the HVAC system.
• The invention is tolerant of background hydrocarbon emissions as well as dynamically adaptable to the changing characteristics of a wide variety of refrigerant gas sensors (RGS).
• The invention is configured to sound alarms notifying occupants that they have a combustible gas leak if a refrigerant leak is detected.
• The invention dynamically monitors the ambient refrigerant levels, determine if a refrigerant leak has occurred, pinpoint the location of the leak, and mitigate any adverse effects of the leak by containing the leak to a portion of the HVAC system in which the refrigerant flows.
• The invention is configured to shut off natural gas, (NG) Propane (LPG), Butane to an indoor furnace if the leak is detected, and the level of refrigerant leak in this instance can be reduced to be more sensitive to the detection of natural gas or other combustible refrigerant types.

Overview

US 20210356150 A1 assigned to Kenneth Ray Green and Douglas Hiram Morse. The IP relates to heating, ventilation, and air conditioning (HVAC) systems, and specifically the detection and mitigation of refrigerant leaks and hydrocarbon-based gas (HBG) leaks (HGL) within these HVAC systems.

The technology disclosed provides the following advantages:

Listing updated August 21, 2026

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