Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5746230 | Concentric smoking filter having discrete tow and web filter media | Cynthia W. Arterbery, Gus D. Keritsis, Morris F. White | 1998-05-05 |
| 5622190 | Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core | Cynthia W. Arterbery, Gus D. Keritsis, Donald E. Laslie, Kenneth A. Newman, Roger S. Slagle +1 more | 1997-04-22 |
| 5365951 | Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core | Cynthia W. Arterbery, Gus D. Keritsis, Donald E. Laslie, Kenneth A. Newman, Roger S. Slagle +1 more | 1994-11-22 |