14 Utility Patents
#6 in Henan
#8,807 in China
#272,061 in the World
Forward Citations = 3
Company Filing History:
Welead Infrastructure Engineering Technology (zhengzhou), Ltd.
Zhengzhou Tobacco Research Institute of Cntc
Infrastructure Renewal Institute of Southern China
4. 3 out of 18
Safekey Engineering Technology (zhengzhou), Ltd.
5. 3 out of 3,100

where one patent can have more than one assignee
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