Tuesday - November 4, 2025

Power Failure Detection Circuit and Control Circuit for VRF System

2025-10-07

ALEXANDRIA, Virginia, Oct. 7 -- CARRIER CORPORATION, Palm Beach Gardens, Florida has been assigned a patent (No. US 12438357 B2, initially filed Oct. 4, 2023) developed by four inventors Xiaojun Guo, Shanghai, China; Hui Zhai, Shanghai, China; Jian Ni, Shanghai, China; and Zehang Yu, Shanghia, China, for "Power failure detection circuit and control circuit for VRF system." . . .

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Power Failure Detection Circuit and Control Circuit for VRF System

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