Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4274427 | Method of increasing filling power of tobacco products | — | 1981-06-23 |
| 4256123 | Smokable material containing thermally degraded tobacco by-products and its method of preparation | Helmut R. R. Wakeham, Gus D. Keritsis | 1981-03-17 |
| 4248252 | Continuous process for expanding tobacco | Billy M. Spann | 1981-02-03 |
| 4244381 | Upgraded tobacco stem material and its method of preparation | — | 1981-01-13 |