Rong Liu (2 out of 4 patents)
Jian Zhang (1 out of 25 patents)
Company Badge
USPTO Data Jan 1 1976 - Nov 3 2026
2 Patents
#137 in Qingdao
#11,673 in China
Qingdao Gren Technology Co., Ltd.
Forward Citations = 19
2 inventors:
Qingdao Gren Technology Co., Ltd.
Calculating rank
Forward Citations = 19
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2 inventors (with patents filed for the assignee):
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Qingdao Gren Technology Co., Ltd.. Retrieved from https://idiyas.com/company/qingdao-gren-technology-company
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]