Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5074319 | Tobacco extraction process | Thomas A. Perfetti, Milly M. L. Wong | 1991-12-24 |
| 5060669 | Tobacco treatment process | Milly M. L. Wong, Chi-Kuen Shu, Thomas A. Perfetti | 1991-10-29 |
| 5038802 | Flavor substances for smoking articles | Richard L. Blakley, Edward Bernasek, William M. Hildebolt, Michael D. Shannon, Gary R. Shelar | 1991-08-13 |
| 5016654 | Flavor substances for smoking articles | Edward Bernasek, William M. Hildebolt, Michael D. Shannon, Gary R. Shelar | 1991-05-21 |
| 4967774 | Smoking article with improved means for retaining the fuel element | — | 1990-11-06 |
| 4962773 | Process for the manufacture tobacco rods containing expanded tobacco material | Robert Eugene Grubbs, Hoyt S. Beard, Mark L. Raker, Thomas A. Perfetti, Richard Haberkern | 1990-10-16 |
| 4893639 | Densified particulate materials for smoking products and process for preparing the same | — | 1990-01-16 |
| 4771795 | Smoking article with dual burn rate fuel element | Bradley J. Ingebrethsen | 1988-09-20 |
| 4596259 | Smoking material and method for its preparation | Mary E. Stowe | 1986-06-24 |
| 4554932 | Pressure vessel and method of using same | Lucas J. Conrad | 1985-11-26 |
| 4534371 | Smoking product | — | 1985-08-13 |
| 4534372 | Smoking product | — | 1985-08-13 |
| 4531529 | Process for increasing filling capacity of tobacco | Lucas J. Conrad | 1985-07-30 |
| 4270553 | Process and apparatus for expanding tobacco | Lucas J. Conrad | 1981-06-02 |
| 4257431 | Process for expanding tobacco | — | 1981-03-24 |