Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12116331 | Gas replacement process, gas replacement apparatus, and nitro compound hydrogenation reaction process | Siqing Zhong, Jun Xu, Le Zhao | 2024-10-15 |
| 12098114 | Double-trapezoid structural member, fluidized apparatus and nitro compound hydrogenation reaction process | Jun Xu, Siqing Zhong, Le Zhao | 2024-09-24 |
| 11571673 | Fluid distributor, reaction device and application thereof | Le Zhao | 2023-02-07 |
| 11091407 | Preheating process and start-up process for the ammoxidation reaction | Le Zhao | 2021-08-17 |
| 11077416 | Feed gas feeding system for propylene ammoxidation reactor | Le Zhao | 2021-08-03 |
| 6596897 | Catalyst for producing acrylonitrile | Xingya Guan, Xin Chen | 2003-07-22 |
| 6420307 | Fluidized-bed catalyst for propylene ammoxidation to acrylonitrile | Guojun Wang, Xin Chen | 2002-07-16 |
| 5834394 | Fluidized-bed catalyst for propylene ammoxidation to acrylonitrile | Xin Chen | 1998-11-10 |
| 5223469 | Fluidized-bed catalyst for preparing acrylonitrile | Xin Chen | 1993-06-29 |
| 5177048 | Supplementary catalyst for ammoxidation catalysts | Xin Chen | 1993-01-05 |