Chongyang Li

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Wuhan, CN

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Patents Grantslast 30 patents

Information Patent Grant
Onsite steel rail laser processing engineering vehicle
- Patent number 10,808,364
- Issue date Oct 20, 2020
- WUHAN NRD LASER ENGINEERING CO., LTD.
- Xiaoyan Zeng
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method and apparatus for laser quenching
- Patent number 10,106,864
- Issue date Oct 23, 2018
- WUHAN HIVALUE INTELASER LTD.
- Xiaoyan Zeng
- C21 - METALLURGY OF IRON
Information Patent Grant
Onsite steel rail laser processing vehicle
- Patent number 9,365,983
- Issue date Jun 14, 2016
- Huazhong University of Science & Technology
- Xiaoyan Zeng
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
ONSITE STEEL RAIL LASER PROCESSING ENGINEERING VEHICLE
- Publication number 20190161918
- Publication date May 30, 2019
- WUHAN NRD LASER ENGINEERING CO., LTD.
- Xiaoyan ZENG
- B60 - VEHICLES IN GENERAL
Information Patent Application
METHOD AND APPARATUS FOR LASER QUENCHING
- Publication number 20160076115
- Publication date Mar 17, 2016
- Wuhan NRD Laser Engineering Co., Ltd.
- Xiaoyan ZENG
- C21 - METALLURGY OF IRON
Information Patent Application
ONSITE STEEL RAIL LASER PROCESSING VEHICLE
- Publication number 20150020707
- Publication date Jan 22, 2015
- Wuhan NRD Laser Engineering Co., Ltd.
- Xiaoyan Zeng
- B60 - VEHICLES IN GENERAL