Gangjin Li

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Unrecoverable line-type temperature sensitive detector having short...
- Patent number 7,671,717
- Issue date Mar 2, 2010
- Sureland Industrial Fire Safety Limited
- Weishe Zhang
- G08 - SIGNALLING
Information Patent Grant
Analog line-type temperature sensitive fire detection cable
- Patent number 7,578,617
- Issue date Aug 25, 2009
- Sureland Industrial Fire Safety Limited
- Weishe Zhang
- G08 - SIGNALLING

Patents Applicationslast 30 patents

Information Patent Application
Data Fusion Alarm System And Method For Line Type Fire Detector
- Publication number 20080136651
- Publication date Jun 12, 2008
- Gangjin Li
- G08 - SIGNALLING
Information Patent Application
Analog Line-Type Fixed Temperature Fire Detection Cable
- Publication number 20080106365
- Publication date May 8, 2008
- Gangjin Li
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
Unrecoverable line-type temperature sensitive detector having short...
- Publication number 20080084268
- Publication date Apr 10, 2008
- Weishe Zhang
- G08 - SIGNALLING
Information Patent Application
Alternate foam storage and proportionally mixing device
- Publication number 20080011490
- Publication date Jan 17, 2008
- Weishe Zhang
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Application
ANALOG LINE-TYPE TEMPERATURE SENSITIVE FIRE DETECTION CABLE
- Publication number 20080008226
- Publication date Jan 10, 2008
- Weishe Zhang
- G08 - SIGNALLING