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Yu Yao

WC Wanhua Chemical Group Co.: 3 patents #23 of 257Top 9%
WC Wanhua Chemical (Ningbo) Co.: 1 patents #13 of 111Top 15%
Overall (All Time): #778,408 of 4,157,543Top 20%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
12266975 Rotor and design method thereof Cheng-Hu Chen, Ruey Y. Lin 2025-04-01
11000837 Catalyst for preparing chlorine gas by hydrogen chloride oxidation, and preparation method and application thereof Hongke Zhang, Bo Zhou, Zhangwei Zai, Dan Xu, Yanlong Xu +4 more 2021-05-11
10046289 Method for replacement of phosgene synthesis column catalyst Hongke Zhang, Dongke Zhao, Guanyi Cao, Xiaogao Liu, Younian Cao +2 more 2018-08-14
9840462 Solvent refining method for isocyanate prepared by phosgene method and devices used in same Hongke Zhang, Dongke Zhao, Weiqi Hua, Bin Chen, Dekai Shi +4 more 2017-12-12
9399582 Catalyst for preparing phosgene and method for preparing phosgene using the same Bin Chen, Wuxi Luo, Liangfeng Shao, Lei Wang, Hongke Zhang +1 more 2016-07-26
8042988 Hole-jetting type mixer-reactor Jiansheng Ding, Wanhong Yang, Peicheng Luo, Weiqi Hua, Deqiang Ma +7 more 2011-10-25