Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6129087 | Reduced ignition propensity smoking articles | Zhimin Wu | 2000-10-10 |
| 4880018 | Extruded tobacco materials | William H. Graves, Jr., Bruce Bradford, Carolyn R. Carpenter, Kenneth W. Smith, Howard C. Toft | 1989-11-14 |