Inventor

Lijian Lao

Inventor

Overview

2→

Patents

2025

Patent span

Chemistry

Primary field (CPC C)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C01Bprimary

C01BNon-metallic elements17%

C25BElectrolytic or electrophoretic processes for the production of compounds or non-metals17%

F25JLiquefaction, solidification or separation of gases or gaseous or liquefied gaseous mixtures by pressure and cold treatment or by bringing them into the supercritical state17%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution17%

Y02PClimate change mitigation technologies in the production or processing of goods17%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry8%

F25BRefrigeration machines, plants or systems8%

PatentTitleYear

12,497,705Device and method for producing hydrogen and byproduct oxygen by using green electricity electrolyzed water2025 12,378,686Device and method for recovering by-product oxygen of hydrogen production from electrolyzed water by low-temperature method2025

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2025Patents assigned to HANGZHOU OXYGEN PLANT GROUP CO LTD (2)· patent assignee history

2025Based in CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HANGZHOU OXYGEN PLANT GROUP CO LTD	2	2025

Locations

Location	Patents	Span
CN	2	2025