Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5622190 | Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core | Cynthia W. Arterbery, W. Timothy Callaham, Donald E. Laslie, Kenneth A. Newman, Roger S. Slagle +1 more | 1997-04-22 |
| 5592955 | Cigarette with insulating shell and method for making same | — | 1997-01-14 |