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USPTO Data Jan 1 1976 - Oct 27 2026
2 Patents
#393 in Guangdong
#11,649 in China
China Construction Fourth Engineering Division Corp. Ltd
Forward Citations = 1
9 inventors:
China Construction Fourth Engineering Division Corp. Ltd
Calculating rank
Forward Citations = 1
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9 inventors (with patents filed for the assignee):
Wei Han (2 out of 24 patents)
Junxian Zhao (2 out of 10 patents)
Xiangkun Yao (2 out of 2 patents)
4. Zhi Luo (2 out of 2 patents)
5. Kezhu Jiang (2 out of 2 patents)
6. Guohui Yuan (2 out of 2 patents)
7. Weijie Chen (2 out of 2 patents)
8. Zhaoxun Yuan (1 out of 3 patents)
9. Hao Qin (1 out of 3 patents)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: China Construction Fourth Engineering Division Corp. Ltd. Retrieved from https://idiyas.com/company/china-construction-fourth-engineering-division
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]