Company Badge
USPTO Data Jan 1 1976 - Nov 3 2026
1 Patents
#1 in Tianjin City
#18,890 in China
Tianjin Dagang Drilling Technology Co., Ltd.
Forward Citations = 0
10 inventors:
Tianjin Dagang Drilling Technology Co., Ltd.
Calculating rank
Forward Citations = 0
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10 inventors (with patents filed for the assignee):
Tao Sun (1 out of 9 patents)
Wei Liu (1 out of 11 patents)
Changyin Dong (1 out of 3 patents)
4. Chao Wang (1 out of 3 patents)
5. Qiang Song (1 out of 1 patent)
6. Haobin Bai (1 out of 1 patent)
7. Honggang Liu (1 out of 2 patents)
8. Haoyu Wang (1 out of 1 patent)
9. Guolong Li (1 out of 1 patent)
10. Huaiwen Li (1 out of 1 patent)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tianjin Dagang Drilling Technology Co., Ltd.. Retrieved from https://idiyas.com/company/tianjin-dagang-drilling-technology
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]