Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5094253 | Dye for coloring cigarette paper | Frank Kelley St. Charles, John H. Lauterbach, Li-Chung Chao, Jiunn-Yann Tang, Andrew McMurtrie | 1992-03-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5094253 | Dye for coloring cigarette paper | Frank Kelley St. Charles, John H. Lauterbach, Li-Chung Chao, Jiunn-Yann Tang, Andrew McMurtrie | 1992-03-10 |