Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5033484 | Ventilated filter cigarette | Henning Seidel, Edgar Mentzel | 1991-07-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5033484 | Ventilated filter cigarette | Henning Seidel, Edgar Mentzel | 1991-07-23 |