Qinfeng LI

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Jiangsu, CN

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Patents Grantslast 30 patents

Information Patent Grant
Bending and molding production line
- Patent number 10,780,487
- Issue date Sep 22, 2020
- JIANGSU UNIVERSITY OF SCIENCE AND TECHNOLOGY INDUSTRIAL TECHNOLOGY RESEARCH I...
- Wenxian Tang
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Bending mold device for bidirectional pipe bending
- Patent number 10,518,310
- Issue date Dec 31, 2019
- Jiangsu University of Science and Technology Industrial Technology Research I...
- Wenxian Tang
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Device and method for adjusting fuel supply advance angle of multi-...
- Patent number 9,926,855
- Issue date Mar 27, 2018
- Jiangsu University of Science and Technology
- Jian Zhang
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

Information Patent Application
BENDING MOLD DEVICE FOR BIDIRECTIONAL PIPE BENDING
- Publication number 20180085808
- Publication date Mar 29, 2018
- Jiangsu University Of Science And Technology Industrial Technology Research I...
- Wenxian TANG
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
BENDING AND MOLDING PRODUCTION LINE
- Publication number 20180021838
- Publication date Jan 25, 2018
- JIANGSU UNIVERSITY OF SCIENCE AND TECHNOLOGY INDUSTRIAL TECHNOLOGY RESEARCH I...
- Wenxian TANG
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Device and Method for Adjusting Fuel Supply Advance Angle of Multi-...
- Publication number 20170198645
- Publication date Jul 13, 2017
- JIANGSU UNIVERSITY OF SCIENCE AND TECHNOLOGY
- Jian ZHANG
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS