41 Utility and 9 Design Patents
#369 in Shenzhen
#2,194 in China
#54,387 in the World
rank by utility patentsForward Citations = 127
Company Filing History:



4. 4 out of 4
Tianjin Renyi Industry Co., Ltd.
5. 3 out of 4
Dagang Oil Field Company of Cnpc
where one patent can have more than one assignee
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