Saturday - March 28, 2026

Photoelectric Hydrogen Production Energy Storage and Cold Energy Recovery Coupled Dry Ice Production Device and Use Method

2025-02-04

ALEXANDRIA, Virginia, Feb. 4 -- HANGZHOU OXYGEN PLANT GROUP CO., LTD., Hangzhou, China has been assigned a patent (No. US 12215921 B2, initially filed Jan. 13, 2023) developed by six inventors Yisong Han, Hangzhou, China; Fang Tan, Hangzhou, China; Xudong Peng, Hangzhou, China; Lei Yao, Hangzhou, China; Liangying Li, Hangzhou, China; and Jiawei Wang, Hangzhou, China, for "Photoelectric hydrogen production energy storage and cold energy recovery coupled dry ice production device and use method." . . .

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Photoelectric Hydrogen Production Energy Storage and Cold Energy Recovery Coupled Dry Ice Production Device and Use Method

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