BEIJING GUOCHENGWANTONG INFORMATION TECHNOLOGY CO., LTD

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Patents Grantslast 30 patents

Information Patent Grant
Positioning light beam emission system, method and indoor positioni...
- Patent number 10,725,147
- Issue date Jul 28, 2020
- BEIJING GUO CHENG WAN TONG INFORMATION TECHNOLOGY CO., LTD
- Rongsheng Dong
- G01 - MEASURING TESTING
Information Patent Grant
First device, system and method to communicate with second device
- Patent number 9,497,575
- Issue date Nov 15, 2016
- BEIJING GUOCHENGWANTONG INFORMATION TECHNOLOGY CO., LTD
- Cheng Guo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
FIRST DEVICE, SYSTEM AND METHOD TO COMMUNICATE WITH SECOND DEVICE
- Publication number 20160134997
- Publication date May 12, 2016
- Beijing Guochengwantong Information Technology Co. Ltd
- Cheng GUO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Methods and Devices for Transmitting /Obtaining Information by Visi...
- Publication number 20140321859
- Publication date Oct 30, 2014
- Beijing Guo Cheng Wan Tong Information Technology Co Ltd.
- Cheng GUO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

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