QD

Qinghua Duan

CC China Petroleum & Chemical: 7 patents #99 of 1,719Top 6%
Overall (All Time): #715,099 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
11028334 Gradient copolymer, its production and application thereof Yao ZHANG, Kecheng Wei, Yinong Liu, Hongwei Sun 2021-06-08
10968313 Amine polymer and preparation method and use thereof Xin Cheng, Jianrong Zhang, Zuoxin Huang 2021-04-06
10822359 Benzotriazole derivative, preparation process and the use thereof Shuo SU, Jun Long, Hui Zhang 2020-11-03
9593290 Lubricating oil composition and production thereof Shihao Xin, Xin-Ying Xie, Zuoxin Huang, Zhiqiang Wu, Lihua Wang 2017-03-14
9587198 Mannich base, production and use thereof Shihao Xin, Zuoxin Huang 2017-03-07
9512380 Hindered phenol compound, preparation thereof and use thereof as an antioxidant Shuo SU, Jun Long, Han-Jie Zhou, Zhiqiang Wu, Xinhua Li +2 more 2016-12-06
8697616 Organic molybdenum additive, its preparation method, a lubricating composition containing said additive, and use of the same Wei Xu, Kecheng Wei, Fuhui Zhang 2014-04-15