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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12449172 B1

PDFFull Text
Date of Patent:
Oct. 21, 2025

Filed:

Feb. 16, 2023

Systems and methods for controlling variable refrigerant flow systems using artificial intelligence

Applicant:

Johnson Controls Tyco Ip Holdings Llp, Milwaukee, WI (US);

Inventors:

Bo Fan, Wuxi, CN;

Zhigang Wu, Suzhou, CN;

Hayato Mori, Tokyo, JP;

Zhongyue Sun, Milwaukee, WI (US);

Liming Yang, Mequon, WI (US);

Robert D. Turney, Watertown, WI (US);

Assignee:

TYCO FIRE & SECURITY GMBH, Neuhausen am Rheinfall, CH;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Kun Kai Ma

Int. Cl.
CPC ...
F25B 49/02 (2006.01); F25B 13/00 (2006.01); F25B 45/00 (2006.01);
U.S. Cl.
CPC ...
F25B 49/02 (2013.01); F25B 13/00 (2013.01); F25B 45/00 (2013.01); F25B 2345/001 (2013.01); F25B 2500/06 (2013.01); F25B 2500/222 (2013.01); F25B 2700/04 (2013.01);
Abstract

A refrigerant charge controller for heating, ventilation, or air conditioning (HVAC) equipment includes a processing circuit configured to analyze usage data for the HVAC equipment using a machine learning model to estimate an amount of refrigerant used by the HVAC equipment, identify a refrigerant deficiency based on the amount of refrigerant, and initiate a corrective action in response to identifying the refrigerant deficiency.

Find Patent Forward Citations

Fan, Bo. (2025). Systems and methods for controlling variable refrigerant flow systems using artificial intelligence (U.S. Patent No. 12449172). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12449172

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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