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USPTO Data Jan 1 1976 - Oct 20 2026
2 Patents
#381 in Vancouver
#6,024 in Canada
D & J Import-Export Ltd.
Forward Citations = 3
4 inventors:
D & J Import-Export Ltd.
Trademarks = 2
Forward Citations = 3
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4 inventors (with patents filed for the assignee):
Zhenxiong Huang (2 out of 2 patents)
Jun Zhang (2 out of 2 patents)
Feng Deng (2 out of 2 patents)
4. Yun Yang (2 out of 23 patents)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: D & J Import-Export Ltd.. Retrieved from https://idiyas.com/company/d-and-j-import-export
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]