14 Utility Patents
#2 in Zhengzhou
#8,676 in China
#270,608 in the World
Forward Citations = 19
Company Filing History:
Other
China National Digital Switching System Engineering & Technological R&d Center

4. 1 out of 158
Zhejiang Lab
5. 1 out of 1
Shanhai Hongzhen Information Science & Technology Co. Ltd.
where one patent can have more than one assignee
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