Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8265360 | Methods and systems for analyzing ratiometric data | Andrew T. Sornborger, James D. Lauderdale, Josef M. Broder, Jeremy L. Praissman | 2012-09-11 |
| 4655736 | Method of manufacturing a tobacco smoke filter | — | 1987-04-07 |
| 4617946 | Tobacco smoke mouthpiece and method of making same | — | 1986-10-21 |
| 4469112 | Compound filter | Colin L. Browne, Peter Bohlander | 1984-09-04 |
| 4460001 | Process for preparing compound filter | Colin L. Browne, Peter Bohlander | 1984-07-17 |
| 4460647 | Fibrets suitable for paper opacification | — | 1984-07-17 |
| 4319591 | Smoking compositions | Bruce D. Karstedt | 1982-03-16 |
| 4283186 | Method of forming cigarette filter material | Richard O. Tucker | 1981-08-11 |
| 4274914 | Filter material | Richard O. Tucker | 1981-06-23 |
| 4233993 | Smoking material | Ralph R. Miano | 1980-11-18 |
| 4197861 | Smoking material | — | 1980-04-15 |
| 4192838 | Process for producing filter material | Richard O. Tucker | 1980-03-11 |
| 4189511 | Filter | William E. Levers | 1980-02-19 |