Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5076893 | Apparatus for decoking a delayed coker using a flexible pipe | Wuwei Tong, Deyu Sun, Qingyuan Zhang, Shicheng Zhou, Shande Yu +2 more | 1991-12-31 |
| 4959126 | Process for decoking a delayed coker | Wuwei Tong, Deyu Sun, Qingyuan Zhang, Shicheng Zhou, Shande Yu +2 more | 1990-09-25 |