4 Utility Patents
#9,290 in Beijing
#33,689 in China
Forward Citations = 0
Company Filing History:
China Petroleum & Chemical Corporation
Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation

4. 1 out of 17
Beijing Smartmi Technology Co., Ltd.
5. 1 out of 1
Icloudshield Security Technology Co., Ltd.
where one patent can have more than one assignee
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