Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874000 | Method and apparatus for drying and cooling extruded tobacco-containing material | Ronald A. Tamol, Jose Nepomuceno, Gus D. Keritsis, George H. Burnett, Richard A. Thesing +1 more | 1989-10-17 |
| 4848375 | Filter cigarette | Gregorio I. Patron, Paul N. Gauvin, Francis M. Sprinkel | 1989-07-18 |