Yigong ZHANG

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Real-time analysis system for operation of working ship based on sh...
- Patent number 10,295,083
- Issue date May 21, 2019
- China National Offshore Oil Corporation
- Facheng Wang
- G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

Information Patent Application
Real-time analysis system for operation of working ship based on sh...
- Publication number 20190072211
- Publication date Mar 7, 2019
- CHINA NATIONAL OFFSHORE OIL CORPORATION
- Facheng WANG
- G05 - CONTROLLING REGULATING