Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6595217 | Smoking articles | Martin Coleman | 2003-07-22 |
| 6478032 | Smoking articles | Alan George Stephenson | 2002-11-12 |
| 6161552 | Low filler content cigarette wrappers | Alan George Stephenson | 2000-12-19 |
| 6000404 | Smoking articles | Alan George Stephenson | 1999-12-14 |
| 5958327 | Tobacco smoke filtration material | John Lawson Beven, Martin Coleman, Colin Campbell Greig | 1999-09-28 |
| 5954059 | Filtration materials | John Lawson Beven, Martin Coleman, Colin Campbell Greig, Peter Rex White | 1999-09-21 |
| 5592954 | Measuring cigarette pressure drop | William J. Stone | 1997-01-14 |
| 5259404 | Smoking articles | John A. Luke | 1993-11-09 |
| 5123429 | Smoking articles | Charles N. Lehuquet | 1992-06-23 |
| 5107865 | Smoking articles | John A. Luke | 1992-04-28 |
| 5105839 | Smoking articles | Alan George Stephenson | 1992-04-21 |
| 5072744 | Relating to the making of smoking articles | John A. Luke, Stephen R. Hemsley | 1991-12-17 |
| 4964427 | Smoking articles | David John Dittrich | 1990-10-23 |
| 4911184 | Smoking articles | John A. Luke | 1990-03-27 |
| 4878507 | Smoking articles | David John Dittrich | 1989-11-07 |