Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5048546 | Filter and method of treating tobacco smoke to reduce materials harmful to health | Chi-Hsueh Hsu, Wen Li Yang, Shien-Yu Chuang | 1991-09-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5048546 | Filter and method of treating tobacco smoke to reduce materials harmful to health | Chi-Hsueh Hsu, Wen Li Yang, Shien-Yu Chuang | 1991-09-17 |