Longhao Quan

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Network-type temperature-controlled hanging extinguishing system
- Patent number 10,556,139
- Issue date Feb 11, 2020
- China Aerospace Construction Group Co., Ltd.
- Longhao Quan
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Double-switched automatic sprinkler valve
- Patent number 9,080,685
- Issue date Jul 14, 2015
- Tianbaili new technology development Co. Ltd
- Longhao Quan
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Heat concentrating type self-operated automatic fire valve
- Patent number 9,079,052
- Issue date Jul 14, 2015
- Tianbaiii new technology development Co. Ltd
- Longhao Quan
- A62 - LIFE-SAVING FIRE-FIGHTING

Patents Applicationslast 30 patents

Information Patent Application
Network-type temperature-controlled hanging extinguishing system
- Publication number 20180093116
- Publication date Apr 5, 2018
- China Aerospace Construction Group Co., Ltd.
- Longhao Quan
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
Heat concentrating type self-operated automatic fire valve
- Publication number 20130312842
- Publication date Nov 28, 2013
- Tianbaiii new technology development Co., Ltd
- Longhao Quan
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Double-switched automatic sprinkler valve
- Publication number 20130200282
- Publication date Aug 8, 2013
- Tianbaili new technology development Co., Ltd.
- Longhao Quan
- A62 - LIFE-SAVING FIRE-FIGHTING