YH

Yuh-Ing Hwang

CD China Petrochemical Development: 1 patents #35 of 94Top 40%
Overall (All Time): #3,364,186 of 4,157,543Top 85%
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Patent #TitleCo-InventorsDate
7417168 Method for preparing hydroxylamine Pin-To Yao, Cheng-Fa Hsieh 2008-08-26