44 Utility Patents
#970 in Beijing
#2,019 in China
#48,488 in the World
Forward Citations = 35
Company Filing History:
Jing-jin Electric Technologies Co., Ltd.
Cnpc Engineering Technology R&d Company Limited

4. 1 out of 1
Beijing Petroleum Machinery Co.
5. 1 out of 1
Jing-jin Electronic Technologies Co., Ltd.
where one patent can have more than one assignee
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