Qingwu Kong

OC Ordos Yuansheng Optoelectronics Co.: 1 patents #406 of 682Top 60%

BO BOE: 1 patents #7,844 of 12,373Top 65%

Overall (All Time): #2,655,359 of 4,157,543Top 65%

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
11333139	Cryopump	Jindong Liu, Xiongfei Guo	2022-05-17