Issued Patents All Time
| 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, Gus D. Keritsis, Donald E. Laslie, Kenneth A. Newman +1 more | 1997-04-22 |
| 5365951 | Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core | Cynthia W. Arterbery, W. Timothy Callaham, Gus D. Keritsis, Donald E. Laslie, Kenneth A. Newman +1 more | 1994-11-22 |
| 5107863 | Cigarette and filter therefor | Urs Nyffeler, Andreas Stathopoulos | 1992-04-28 |