Guoqing Gu

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Edison, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Sewage suction device
- Patent number 8,960,070
- Issue date Feb 24, 2015
- Guoqing Gu
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Buoyancy operation mechanism for sewage suction device used in toilets
- Patent number 8,869,317
- Issue date Oct 28, 2014
- Guoqing Gu
- E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

Information Patent Application
Buoyancy Operation Mechanism for Sewage Suction Device Used in Toilets
- Publication number 20120124729
- Publication date May 24, 2012
- Guoqing Gu
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
Sewage Suction Device
- Publication number 20120118142
- Publication date May 17, 2012
- Guoqing Gu
- E03 - WATER SUPPLY SEWERAGE