Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5738119 | Filter materials | William B. Edwards, III, Navin Gautam, Donald E. Laslie, Kenneth A. Newman, Calvin Woodings | 1998-04-14 |
| 5178166 | Filter cigarette | Reginald W. Newsome, Alexander S. Gergely, Richard A. Thesing, William T. Callaham, Warren E. Claflin +1 more | 1993-01-12 |
| 4848375 | Filter cigarette | Gregorio I. Patron, Walter A. Nichols, Francis M. Sprinkel | 1989-07-18 |