Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 5697385 | On-line basis measurement system for control of tobacco cast sheet A real-time cast sheet weight monitoring and control system in which the weight of a cast base sheet of wet laid tobacco slurry as well as the weight of a composite tobacco cast sheet formed by applying dry granular tobacco to the wet laid cast sheet prio... | 12/16/1997 |
| 5450863 | Smoking article wrapper and method for making same A smoking article wrapper comprising a base web material having a first burn rate and one or more regions having a second burn rate is provided. The regions having a second burn rate are comprised of a composite layer structure of: said base web material,... | 09/19/1995 |
| 4989620 | Method and apparatus for coating extruded tobacco-containing material An apparatus and a method for processing extruded tobacco-containing materials as they are continuously extruded by applying a powdery material to the surface of the extrudate, optionally wiping the coated extruded material in order to smear or embed the ... | 02/05/1991 |
| 4819668 | Cigarette cut filler containing rare and specialty tobaccos Rare or specialty cigar-type and pipe tobaccos can be uniformly applied within a blend of smokable material for use as cigarette cut filler. The rare or specialty tobacco is divided into a finely divided powder, suspended in liquid, and applied as a casin... | 04/11/1989 |
| 4611608 | Process for utilizing tobacco dust A process for utilizing tobacco dust by affixing it to cut, shredded or otherwise comminuted tobacco, reconstituted tobacco or tobacco substitute by thoroughly mixing tobacco dust, a powdered water soluble hydrocolloid, optionally an organic solvent, the ... | 09/16/1986 |
| 4534371 | Smoking product A combustible smoking material having a color other than that of conventionally cured tobacco leaves is coated with finely divided vermiculite that has previously been subjected to heat treatment to develop a brown color therein. The vermiculite coating i... | 08/13/1985 |
| 4534372 | Smoking product A combustible smoking material having a color other than that of conventionally cured tobacco leaves is coated with finely divided, toasted cereal grain to impart a tobacco-like brown color to the combustible smoking material.... | 08/13/1985 |
| 4421126 | Process for utilizing tobacco fines in making reconstituted tobacco A process for employing tobacco fines in a system for preparing reconstituted tobacco is disclosed. The tobacco fines are incorporated into concentrated extract before the extract is recombined with the reconstituted sheet or into an aqueous carrier. The ... | 12/20/1983 |
