Company Badge
USPTO Data Jan 1 1976 - Dec 23 2025
2 Patents
#1 in Cangzhou
#9,995 in China
China National Chemical Engineering No. 13 Construction Co., Ltd.
Forward Citations = 0
4 inventors:
China National Chemical Engineering No. 13 Construction Co., Ltd.
Forward Citations = 0
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4 inventors (with patents filed for the assignee):
Qunwei Wang (2 out of 3 patents)
Yongwei Wang (1 out of 3 patents)
Qinxi Dong (1 out of 3 patents)
4. Youliang Zhang (1 out of 2 patents)
2 patents:
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