GENEVA, June 26 -- GREE ELECTRIC APPLIANCES, INC.OF ZHUHAI filed a patent application (CN2025/121290) for “HEAT EXCHANGE TUBE, HEAT EXCHANGE DEVICE, CASCADE UNIT, COMBINED COOLING AND HEATING SYSTEM, AND CONTROL METHOD”. With publication no. WO/2026/118616, here are the other details related to the patent application:
Kind: Initial Publication with ISR [A1]
IPC: F28F 1/42
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).
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