15 Utility Patents
#25 in Tianjin
#8,082 in China
#248,522 in the World
Forward Citations = 8
Company Filing History:

Dagang Oil Field Company of Cnpc
4. 2 out of 934
Semiconductor Manufacturing International (beijing) Corporation
5. 2 out of 42
Bcd Semiconductor Manufacturing Limited
where one patent can have more than one assignee
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