In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7337782 | Process to remove protein and other biomolecules from tobacco extract or slurry A process is disclosed for removing proteins and other undesirable biomolecules from tobacco extract or slurry via foam fractionation, thereby concentrating the tobacco extract or slurry. The tobacco extract or slurry is treated and modified prior to being subjected... | 03/04/2008 |
| 6807969 | Method for processing reconstituted tobacco A method of processing reconstituted tobacco which reduces the attrition of reconstituted tobacco and increases the capacity of a primary processing facility by bypassing several conventional primary processing steps. This improved process allows reconstituted tobac... | 10/26/2004 |
| 6571803 | Method for gumming a reconstituted tobacco leaf The present invention relates to a reconstituted tobacco leaf coated with a stripe of adhesive along one of its margins, the linear mass of the stripe of adhesive being greater than 70 mg/m in the dry state. The invention also provides a method of deposit... | 06/03/2003 |
| 6109272 | Method for producing a tobacco flavor-tasting article A tobacco flavor-tasting article is manufactured by preparing a heat-irreversibly coagulated glucan sheet containing a tobacco extract. The glucan sheet is prepared by preparing a sheet-like material from a high viscosity aqueous dispersion containing the... | 08/29/2000 |
| 6026820 | Cigarette for electrical smoking system A novel cigarette adapted for use in an electrical cigarette system comprising a tobacco rod having filled and unfilled tobacco rod portions and being arranged so that electrical heater elements may overlap the filled and unfilled tobacco rod portions. Th... | 02/22/2000 |
| 5947128 | Method for making a reconstituted tobacco sheet using steam exploded tobacco A process to improve the smoke quality and mechanical properties of reconstituted tobacco is accomplished by adding tobacco materials to an aqueous solution containing ammonium salts and urea. The resulting first tobacco slurry is then pressurized under s... | 09/07/1999 |
| 5908034 | Method for making a band cast reconstituted tobacco sheet using steam exploded tobacco A process for improving smoke quality and mechanical properties of a cast reconstituted tobacco sheet is accomplished by adding tobacco materials to an aqueous solution containing ammonium salts and ammonium hydroxide. The resulting first tobacco slurry i... | 06/01/1999 |
| 5724998 | Reconstituted tobacco sheets and methods for producing and using the same Reconstituted tobacco sheets manufactured from tobacco dust and binder are described herein. More particularly, the tobacco dust has a mean particle size in the range of from about 60 mesh to about 400 mesh to afford reconstituted tobacco sheets having ab... | 03/10/1998 |
| 5715844 | Tobacco reconstitution process The process of the present invention involves extracting components from a tobacco material or other plant material using a solvent having an aqueous character to provide separately an aqueous tobacco extract and a water insoluble tobacco portion. The ins... | 02/10/1998 |
| 5699812 | Smoking product A novel reconstituted tobacco sheet material is provided which is useful in providing a novel smoking product which has a smoking quality closely approximating that of cigarettes having conventional paper wrappers. The reconstituted tobacco sheet is prepa... | 12/23/1997 |
| 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 |
| 5533530 | Tobacco reconstitution process The process of the present invention involves extracting components from a tobacco material or other plant material using a solvent having an aqueous character to provide separately an aqueous tobacco extract and a water insoluble tobacco portion. The ins... | 07/09/1996 |
| 5499636 | Cigarette for electrical smoking system A novel cigarette adapted for use in an electrical cigarette system comprising a tobacco rod having filled and untilled tobacco rod portions and being arranged so that electrical heater elements may overlap the filled and untilled tobacco rod portions. Th... | 03/19/1996 |
| 5462073 | Cigarette having wrapper made by extraction and paper-making process A novel reconstituted tobacco sheet material is provided which is useful in providing a novel smoking product which has a smoking quality closely approximating that of cigarettes having conventional paper wrappers. The reconstituted tobacco sheet is prepa... | 10/31/1995 |
| 5377698 | Reconstituted tobacco product A process for the manufacture of a reconstituted tobacco product wherein the process comprises extraction of tobacco furnish with an aqueous solvent in the presence of at least one ammonium salt or urea or a urea derivative or a mixture of urea or a urea ... | 01/03/1995 |
| 5322076 | Process for providing tobacco-containing papers for cigarettes A tobacco-containing paper is provided using a reconstituted tobacco material as a component thereof. A reconstituted tobacco material, provided using papermaking techniques from a refined tobacco pulp, is refined into a pulp form and provided as a slurry... | 06/21/1994 |
| 5078156 | Method and apparatus for producing sheet tobacco A sheet tobacco producing apparatus comprises a mixer, a kneader, a crusher, and a shaping machine. The mixer mixes tobacco chips with auxiliary substances including water, to produce wet round pieces. The kneader has a pair of rollers for kneading the we... | 01/07/1992 |
| 4987906 | Tobacco reconstitution process Reconstituted tobacco has phosphate salts incorporated therein. Tobacco is extracted with water to yield an insoluble portion and an aqueous portion containing water soluble tobacco components. The aqueous portion is adjusted to a pH of about 7, and conta... | 01/29/1991 |
| 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 |
| 4341228 | Method for employing tobacco dust in a paper-making type preparation of reconstituted tobacco and the smoking material produced thereby A method for employing tobacco dust in a paper-making process for the preparation of reconstituted tobacco is disclosed. The method for employing the tobacco dust comprises admixing tobacco dust with a bonding material to form a mixture, treating the mixt... | 07/27/1982 |
| 4333482 | Process for increasing filling power of reconstituted tobacco A method for increasing the filling power of sheet or shredded reconstituted tobacco which is normally not susceptible to conventional expansion techniques is provided. In the practice of the method reconstituted tobacco having a uniform moisture content ... | 06/08/1982 |
| 4306578 | Tobacco sheet reinforced with hardwood pulp Tobacco sheet is prepared from high solids aqueous slurries incorporating a reinforcing agent constituted by unrefined short cellulose fiber, having an average length of less than 2.0 mm.... | 12/22/1981 |
| 4270552 | Process and apparatus for producing paper reconstituted tobacco A process and apparatus for producing reconstituted tobacco by a papermaking process. Tobacco material is mixed with aqueous tobacco extract or water to wet the tobacco, the resulting slurry is fed to a deflaker in which the bundles of tobacco fibers are ... | 06/02/1981 |
| 4182349 | Method of making reconstituted tobacco Reconstituted tobacco is made from the whole tobacco plant by first separating the woody stalk portion and leaf portion of the plant. The stalk portion is refined, or beaten, apart from the leaf portion to reduce it to pieces which can bond to form a pape... | 01/08/1980 |
| 4005718 | Smoking materials A smokeable material comprises a base material, consisting of calcium-alginate fibers, and additional material which renders the smokeable material suitable for use in place of smoking tobacco. The additional material may consist of tobacco alone, but alt... | 02/01/1977 |