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| Number | Title | Issue Date |
| 7114503 | Process for producing an open celled foam The invention relates to a foam for purifying and filtrating air, particularly filtrating toxic compounds, such as for instance tar and polycyclic aromatic hydrocarbons (PAHs) from tobacco smoke, and to a method to prepare this foam. The foam according to the invent... | 10/03/2006 |
| 7080649 | Cigarette holder A cigarett holder has a mouthpiece, a cotton filter, a main pipe, and a filter column. The mouthpiece has a distal periphery flange, a head portion, an inner tube having a through hole, and an enlarged hole communicating with the through hole. The main pipe has a fi... | 07/25/2006 |
| 6860273 | Cigarette with adsorbent at tip end thereof A zone or plug of porous adsorbent material, primarily activated carbon, is placed in the tobacco rod of a cigarette a short distance from the lighting end thereof. The amount of activated carbon is sufficient for effective removal of volatile smoke constituents whi... | 03/01/2005 |
| 6302114 | Tobacco smoke filter The present invention provides a tobacco smoke filter or filter element having a longitudinally extending core (2) and a wrapper (4) engaged around the core (2), the wrapper (4) having particulate additive (6) adhered to one or more portion(s) of the radi... | 10/16/2001 |
| 6119699 | Method and apparatus for the selective removal of specific components from smoke condensates A smoking article capable of delivering a regulated smoke composition to a smoker, includes: a) a combustible filler wrapped in a combustible sheath; and b) at least one affinity chromatographic filter unit designed to preferentially remove specific targe... | 09/19/2000 |
| 6113964 | Removal of undesirable components from a liquid or gas with proteinaceous oat material Bitter or otherwise undesirable compounds can be removed from beverages such as tea, coffee or wine by using a natural proteinaceous oat-derived material. This material will also remove noxious compounds such as nicotine from the smoke stream of lighted t... | 09/05/2000 |
| 6080457 | Particulate sorbent smoke filter A smoke filter consists of substrate threads and/or strips each pre-coated with particulate sorbent (e.g. activated carbon granules), gathered together in solid or tubular rod form e.g. within a containing sleeve. When the gathered threads and/or strips f... | 06/27/2000 |
| 6006757 | Cigarette holder A cigarette holder completely encloses the lit end of a cigarette providing purification for both sidestream smoke and mainstream smoke. It has two concentric tubes with the lit cigarette placed in the inner tube and purifying agent placed in the volume b... | 12/28/1999 |
| 5223252 | Permanent wave composition and method A mild, alkaline permanent wave reducing composition and method of permanently waving or reshaping human hair that provides a strong, long lasting curl like an alkaline permanent wave composition but leaves the hair soft like an acid permanent wave compos... | 06/29/1993 |
| 4687005 | Pipe bowl filter A tobacco pipe is provided having a bowl, stem and filter. The filter is inserted into the bowl. The filter is substantially cylindrical in shape having a perforated foil cap located on top of the filter. Associated with the filter is a pull wire so that ... | 08/18/1987 |
| 4316730 | Filter for the removal of apolar organic substances from gases Filter for the removal of apolar organic substances from gases containing an absorbent comprising at least one compound of the following formula: ##STR1## wherein one of X1, X2, and X3 is a phosphoric acid, phosphoric acid ester, or phosphatidyl moie... | 02/23/1982 |
| 4148618 | Ashtray An ashtray having a top upon which lit cigarettes or the like may be rested and having a plurality of holes therethrough through which smoke from the cigarette may be drawn downwardly through odor-treating material. The holes in the top are such as to per... | 04/10/1979 |
