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USPTO Data Jan 1 1976 - Nov 3 2026
1 Patents
#202 in Tianjin
#18,890 in China
China Railway Design Group Co., Ltd.
Forward Citations = 0
12 inventors:
China Railway Design Group Co., Ltd.
Calculating rank
Forward Citations = 0
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12 inventors (with patents filed for the assignee):
Jing Gao (1 out of 6 patents)
Fei Wang (1 out of 9 patents)
Liguo Zhang (1 out of 2 patents)
4. Hu Cao (1 out of 2 patents)
5. Guangxue Ren (1 out of 2 patents)
6. Zelian Chen (1 out of 2 patents)
7. Guiwei Liu (1 out of 2 patents)
8. Qingguo Cui (1 out of 2 patents)
9. Xuanyu Zhang (1 out of 2 patents)
10. Jingtao Li (1 out of 1 patent)
11. Feng Zuo (1 out of 1 patent)
12. Qihao Sun (1 out of 2 patents)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: China Railway Design Group Co., Ltd.. Retrieved from https://idiyas.com/company/china-railway-design-group
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]