Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE32014 | Process for expanding tobacco | Larry M. Sykes, Ray G. Snow, Roger Z. de la Burde | 1985-10-29 |
| RE32013 | Expanding tobacco | Roger Z. de la Burde | 1985-10-29 |
| 4459100 | Process for expansion of tobacco | Roger Z. de la Burde, Francis V. Utsch | 1984-07-10 |
| 4414987 | Process for increasing the filling power of tobacco lamina filler | Francis V. Utsch, Roger Z. de la Burde, Henry B. Merritt | 1983-11-15 |
| 4340073 | Expanding tobacco | Roger Z. de la Burde | 1982-07-20 |
| 4336814 | Process for expanding tobacco | Larry M. Sykes, Ray G. Snow, Roger Z. de la Burde | 1982-06-29 |
| 4333483 | Tobacco product | Roger Z. de la Burde, Francis V. Utsch | 1982-06-08 |
| 4258729 | Novel tobacco product and improved process for the expansion of tobacco | Roger Z. de la Burde, Francis V. Utsch | 1981-03-31 |
| 4250898 | Carbon dioxide impregnation of tobacco by super cooling | Francis V. Utsch, Roger Z. de la Burde | 1981-02-17 |
| 4243056 | Method for uniform incorporation of additives into tobacco | Roger Z. de la Burde | 1981-01-06 |
| 4202357 | Reordering expanded tobacco by water mist | Roger Z. de la Burde, Francis V. Utsch | 1980-05-13 |