Yongqing GAO

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Patents Grantslast 30 patents

Information Patent Grant
Sewage uniform distribution treatment device for aerobic granular s...
- Patent number 11,858,838
- Issue date Jan 2, 2024
- BEIJING DRAINAGE GROUP CO., LTD
- Shujun Zhang
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND SYSTEM FOR ENHANCED CULTURE OF AEROBIC GRANULAR SLUDGE
- Publication number 20230271863
- Publication date Aug 31, 2023
- BEIJING DRAINAGE GROUP CO ., LTD
- Shujun ZHANG
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
Sewage Uniform Distribution Treatment Device for Aerobic Granular S...
- Publication number 20210355008
- Publication date Nov 18, 2021
- BEIJING DRAINAGE GROUP CO ., LTD
- Shujun ZHANG
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE