73 Utility and 3 Design Patents
#469 in Beijing
#869 in China
#18,248 in the World
rank by utility patentsForward Citations = 171
Company Filing History:

Hefei Xinsheng Optoelectronics Technology Co., Ltd.

4. 5 out of 646
China Petroleum & Chemical Corporation
5. 4 out of 98
Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
where one patent can have more than one assignee
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