Huajun DONG

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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
Laptop
- Patent number 9,459,655
- Issue date Oct 4, 2016
- Beijing Lenovo Software Ltd.
- Chunsun Zhang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Screen of laptop computer and laptop computer having the same
- Patent number 8,009,415
- Issue date Aug 30, 2011
- Lenovo (Beijing) Limited
- Xiaosong Xia
- G06 - COMPUTING CALCULATING COUNTING

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
LAPTOP
- Publication number 20150370286
- Publication date Dec 24, 2015
- LENOVO (BEIJING) CO., LTD.
- Chunsun ZHANG
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SCREEN OF LAPTOP COMPUTER AND LAPTOP COMPUTER HAVING THE SAME
- Publication number 20090067125
- Publication date Mar 12, 2009
- Lenovo (Beijing) Limited
- XIAOSONG XIA
- G06 - COMPUTING CALCULATING COUNTING