4 Utility Patents
#9,319 in Beijing
#33,786 in China
Forward Citations = 0
Company Filing History:
Ordos Yuansheng Optoelectronics Co., Ltd.

China Petroleum & Chemical Corporation
4. 1 out of 64

5. 1 out of 2
China Petroleum & Chemical Corporation Exploration & Production Research Institute
where one patent can have more than one assignee
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