LL

Ling Li

HC Hangzhou Oxygen Plant Group Co.: 1 patents #5 of 17Top 30%
Overall (2025): #305,069 of 469,880Top 65%
1
Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12378686 Device and method for recovering by-product oxygen of hydrogen production from electrolyzed water by low-temperature method Yisong HAN, Fang TAN, Xudong Peng, Lei Yao, Lijian Lao +4 more 2025-08-05