Liu Guang WEI

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Cixi City, Zhejiang Province, CN

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Patents Grantslast 30 patents

Information Patent Grant
Systems and methods of eliminating filter air locks
- Patent number 10,099,942
- Issue date Oct 16, 2018
- ZERO TECHNOLOGIES, LLC
- Doug Kellam
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
SYSTEMS, DEVICES, AND METHODS OF WATER FILTRATION
- Publication number 20160031724
- Publication date Feb 4, 2016
- ZERO TECHNOLOGIES, LLC
- Doug KELLAM
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Application
SYSTEMS AND METHODS OF ELIMINATING FILTER AIR LOCKS
- Publication number 20160023918
- Publication date Jan 28, 2016
- ZERO TECHNOLOGIES, LLC
- Doug KELLAM
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE