Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4700726 | Cigarette rods having segmented sections | David E. Townsend, Diane R. Frye, Thomas A. Perfetti | 1987-10-20 |
| 4595024 | Segmented cigarette | David E. Townsend, Thomas A. Perfetti | 1986-06-17 |