DAFU CHENG

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Material management and control system
- Patent number 9,798,990
- Issue date Oct 24, 2017
- Hefei Xinsheng Optoelectronics Technology Co., Ltd.
- Mingting Weng
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and device for monitoring the number of sheets in drying ove...
- Patent number 9,523,981
- Issue date Dec 20, 2016
- BOE Technology Group Co., Ltd.
- Dafu Cheng
- G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND DEVICE FOR MONITORING THE NUMBER OF SHEETS IN DRYING OVE...
- Publication number 20160070259
- Publication date Mar 10, 2016
- BOE TECHNOLOGY GROUP CO., LTD.
- DAFU CHENG
- G05 - CONTROLLING REGULATING
Information Patent Application
MATERIAL MAANGEMENT AND CONTROL SYSTEM
- Publication number 20150310369
- Publication date Oct 29, 2015
- Hefei Xinsheng Optoelectronics Technology Co., Ltd
- MINGTING WENG
- G06 - COMPUTING CALCULATING COUNTING