6 Utility Patents
#3,469 in Shenzhen
#22,124 in China
#693,511 in the World
Forward Citations = 0
Company Filing History:

Qing Ding Precision Electronics (huaian) Co., Ltd
4. 1 out of 113
Hongqisheng Precision Electronics (qinhuangdao) Co., Ltd.
where one patent can have more than one assignee
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