Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5037459 | Device for controlling relative humidity within a substantially sealed container | David B. Spruill, Joseph L. Banyasz | 1991-08-06 |
| 5035731 | Device for controlling relative humidity within a substantially sealed container | David B. Spruill, Joseph L. Banyasz | 1991-07-30 |
| 4350832 | Synthesis of N-t-butyl-p-menthane-3-carboxamide | — | 1982-09-21 |
| 4212310 | Unitary pack of smoking tobacco products containing polymeric alcohol flavorant-release compositions | Harvey J. Grubbs, William R. Johnson | 1980-07-15 |