Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11161797 | Process for preparing catalyst for selective hydrogenation of acetylene to ethylene | Deman Han | 2021-11-02 |
| 10934500 | Method for efficiently regenerating waste lubricating oil | Deman Han, Fangyu Zhou | 2021-03-02 |