Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4677995 | Filter cigarette | Andrew G. Kallianos, Francis M. Sprinkel | 1987-07-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4677995 | Filter cigarette | Andrew G. Kallianos, Francis M. Sprinkel | 1987-07-07 |