Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9688646 | Process for producing N-methyl or N,N-dimethyl amines | Feng Shi, Xinjiang Cui, Hangkong Yuan, Yan Zhang | 2017-06-27 |
| 8901354 | Method for producing N-substituted amine compounds through catalyzed alkylation | Feng Shi, Xinjiang Cui, Hangkong Yuan | 2014-12-02 |
| 8809574 | Method for preparing isocyanates by liquid-phase thermal cracking | Xiaoguang Guo, Feng Shi, Qinghua Zhang, Xiangyuan MA, Liujin Lu +7 more | 2014-08-19 |
| 8450518 | Method for preparing a carbamate, a catalyst applied in the method, a method for preparing the catalyst and use thereof | Liguo Wang, Yubo Ma, Xiaoguang Guo, Stefan Wershofen, Stephan Klein +1 more | 2013-05-28 |
| 8338634 | Catalyst for the synthesis of alkyl carbamates, the method for preparing the same and the use thereof | Yubo Ma, Liguo Wang, Xiaoguang Guo, Shiguo Zhang, Yude He +3 more | 2012-12-25 |
| 7220869 | Brønsted acidic room temperature ionic liquids each having a N-protonated lactam cation and method for preparing the same | Zhengyin Du, Shu Guo, Zuopeng Li, Laiying Zhu | 2007-05-22 |