Xue Song Shen

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method for testing a plurality of notification appliances connected...
- Patent number 11,297,401
- Issue date Apr 5, 2022
- Siemens Schweiz AG
- Urs Kaestli
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Fire alarm systems
- Patent number 10,540,885
- Issue date Jan 21, 2020
- Siemens Schweiz AG
- Hong Xiang Liang
- G08 - SIGNALLING
Information Patent Grant
Visual notification device and driving method thereof
- Patent number 9,666,039
- Issue date May 30, 2017
- Siemens Schweiz AG
- Li Guo Chen
- G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

Information Patent Application
Method For Testing A Plurality Of Notification Appliances Connected...
- Publication number 20200382851
- Publication date Dec 3, 2020
- SIEMENS SCHWEIZ AG
- Urs Kaestli
- G01 - MEASURING TESTING
Information Patent Application
Fire Alarm Systems
- Publication number 20170345286
- Publication date Nov 30, 2017
- SIEMENS SCHWEIZ AG
- Hong Xiang Liang
- G08 - SIGNALLING
Information Patent Application
Visual Notification Device And Driving Method Thereof
- Publication number 20170061752
- Publication date Mar 2, 2017
- SIEMENS SCHWEIZ AG
- Li Guo Chen
- G08 - SIGNALLING