Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7836898 | Reduced ignition propensity smoking article | Michael Andrew Zawadzki, David Grider, Terry D. Jessup, David Williams | 2010-11-23 |
| 6837248 | Reduced ignition propensity smoking article | Michael Andrew Zawadzki, David Grider, Terry D. Jessup, David Williams | 2005-01-04 |
| 4452259 | Smoking articles having a reduced free burn time | Vello Norman | 1984-06-05 |