Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5409021 | Cigarette filter | Radzhab D. Safaev, David G. Zaridze | 1995-04-25 |
| 5083579 | Composition for absorbing nitrogen oxide from tobacco smoke, method for absorbing nitrogen oxide using said composition, filter for purifying tobacco smoke using said composition, and method for impregnating the base of a filter with said composition | Anatoly F. Vanin, Petr I. Mordvintsev, Ljudmila N. Kubrina, Ilgam S. ogly Kurbanov, Elizar Y. Kaplan | 1992-01-28 |