Maojiang Shen

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Rotating shaft device with variable torsion, electronic device and...
- Patent number 9,933,764
- Issue date Apr 3, 2018
- Lenovo (Beijing) Co., Ltd.
- Zhigang Na
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Electronic device
- Patent number 8,970,485
- Issue date Mar 3, 2015
- Lenovo (Beijing) Co., Ltd.
- Maojiang Shen
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
ROTATING SHAFT DEVICE, ELECTRONIC DEVICE AND CONTROL METHOD THEREOF
- Publication number 20160274597
- Publication date Sep 22, 2016
- LENOVO (BEIJING) CO., LTD.
- Zhigang NA
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Electronic Device
- Publication number 20140035810
- Publication date Feb 6, 2014
- LENOVO (BEIJING) CO., LTD.
- Maojiang Shen
- G06 - COMPUTING CALCULATING COUNTING