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Yu Yao

WC Wanhua Chemical Group Co.: 1 patents #1 of 27Top 4%
Overall (2018): #175,898 of 503,207Top 35%
1
Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10046289 Method for replacement of phosgene synthesis column catalyst Hongke Zhang, Dongke Zhao, Guanyi Cao, Xiaogao Liu, Younian Cao +2 more 2018-08-14