Famous Patents
The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5251649 | Process for impregnation and expansion of tobacco A process for expanding tobacco is provided which employs carbon dioxide gas. Tobacco temperature and OV content are adjusted prior to contacting the tobacco with carbon dioxide gas. A thermodynamic path is followed during impregnation which allows a cont... | 10/12/1993 |
| 4577646 | Process for improving the fillability of tobacco Process for improving the fillability of tobacco, such as cut tobacco leaves or ribs and tobacco additives by treating the tobacco in an autoclave with a containing nitrogen and/or argon at pressures up to 1000 bar, with subsequent decompression and a gas... | 03/25/1986 |
| 4497330 | Process for increasing the filling power of tobacco The present invention relates to a process for increasing the filling power of tobacco which comprises heating the tobacco at elevated temperature while maintaining the OV and SV values of the tobacco substantially constant. Preferably, the tobacco is hea... | 02/05/1985 |
| 4327750 | Apparatus for increasing the filling capacity of tobacco The invention disclosed is an apparatus for increasing the filling capacity of cured tobacco by evaporatively freeze-drying water expanded tobacco and effecting heating of the tobacco by infrared radiation. The treated tobacco has increased filling capaci... | 05/04/1982 |
| 4271852 | Method for increasing the filling capacity of tobacco The invention disclosed is a method for increasing the filling capacity of cured tobacco by evaporatively freeze-drying water expanded tobacco and effecting heating of the tobacco by infrared radiation. The treated tobacco has increased filling capacity w... | 06/09/1981 |
