Assignee
HANGZHOU OXYGEN PLANT GROUP CO LTD
CN·6 granted patents·3 pending applications·4 citations·filing 2021–2025
Top patents by PatentIndex Score
9 records- 0190US12163736B2Mixed refrigerant hydrogen liquefaction device and method of using sameHANGZHOU OXYGEN PLANT GROUP CO LTD·Filed 2022·Granted Dec 10, 2024·3 cites·7 claims
- 0283US12497705B2Device and method for producing hydrogen and byproduct oxygen by using green electricity electrolyzed waterHANGZHOU OXYGEN PLANT GROUP CO LTD·Filed 2023·Granted Dec 16, 2025·1 cites·1 claims
- 0364US12378686B2Device and method for recovering by-product oxygen of hydrogen production from electrolyzed water by low-temperature methodHANGZHOU OXYGEN PLANT GROUP CO LTD·Filed 2022·Granted Aug 5, 2025·0 cites·8 claims
- 0463US2026055956A1System and method for simultaneously producing high-purity liquid nitrogen and high-purity liquid carbon dioxide at low cost by using flue gasHANGZHOU OXYGEN PLANT GROUP CO LTD·Filed 2025·Application pending·0 cites
- 0562US12215921B2Photoelectric hydrogen production energy storage and cold energy recovery coupled dry ice production device and use methodHANGZHOU OXYGEN PLANT GROUP CO LTD·Filed 2023·Granted Feb 4, 2025·0 cites·4 claims
- 0662US2024295359A1Device and Method for Recovering Gas with Variable Low-TemperatureHANGZHOU OXYGEN PLANT GROUP CO LTD·Filed 2024·Application pending·0 cites
- 0761US12246281B2Bearing device in radial flow adsorber with gas flow guide functionHANGZHOU OXYGEN PLANT GROUP CO LTD·Filed 2022·Granted Mar 11, 2025·0 cites·4 claims
- 0856US2023138866A1Energy storage device for water electrolysis hydrogen production coupled with low temperature and energy storage methodHANGZHOU OXYGEN PLANT GROUP CO LTD·Filed 2022·Application pending·0 cites
- 0951US11865490B2Multi-compartment bed radial flow adsorber capable of realizing large telescopic deformationHANGZHOU OXYGEN PLANT GROUP CO LTD·Filed 2021·Granted Jan 9, 2024·0 cites·4 claims
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