25 Utility Patents
#1,772 in Beijing
#4,141 in China
#119,459 in the World
Forward Citations = 72
Company Filing History:
China Petroleum & Chemical Corporation

Schlumberger Technology Corporation
4. 3 out of 189
State Grid Corporation of China
5. 2 out of 15
China Electric Power Research Institute Company Limited
where one patent can have more than one assignee
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