Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11839232 | Method for preparing tar extract having aromatic characteristics by using discarded cigarette butt, and use thereof in cigarette | Liqun Li, Yajun Ye, Ying Chai, Junsong Zhang, Chunsheng Guo +7 more | 2023-12-12 |