William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7399519 | Treated textiles and compositions for treating textiles Certain chemical compositions provide superior repellency, durability, and soil (stain) release properties when applied to a textile or fabric. Compositions may contain a fluorochemical-containing soil release component or a crosslinking component, or both, and also... | 07/15/2008 |
| 7252795 | High thermal conductivite element, method for manufacturing same, and heat radiating system It is an object of the present invention to provide a high thermal conductive element that has improved thermal conductivity in the layer direction while retaining the high thermal conductivity characteristics in the planar direction possessed by graphite. The prese... | 08/07/2007 |
| 7238404 | Thin sheet mica wedges with semi-conducting properties The present invention provides for thin sheet wedges that comprise a mica matrix impregnated with a conductive resin. The mica matrix is composed of mica flakes. The thin sheet wedge has a semi-conductive property of 500–500,000 ohms per square. In one embodiment ... | 07/03/2007 |
| 7061523 | Capsule type medical device Signals are sent by radio waves from a single or multiple antennas provided in an external unit located outside of a living body to a capsule inserted into a living body to obtain living body information. The signals are received by the antenna on the capsule side a... | 06/13/2006 |
| 7051375 | Wetsuit and wetsuit material A wetsuit is composed multiple panels sewn together in edge-to-edge relationship, each panel comprising a highly stretchable base fabric sandwiched between an outer and inner layer of synthetic rubber, the outer synthetic rubber layer is dense and tough, providing p... | 05/30/2006 |
| 7025013 | Multilayered submersible structure with fouling inhibiting characteristic A multilayered submersible structure has an outer coating that is disposed in contact with water in which the structure is submerged, a current distribution layer or charge distribution layer, an electrical conductor connectable in electrical communication to a sour... | 04/11/2006 |
| 6881904 | Heat-Shrinkable EMI/RFI shielding material The present invention relates to a material for shielding electromagnetic interference (EMI) and radio frequency interference (RFI) between a, electrical conductor or bundle of conductors and the environment. The material comprises a heat-shrinkable woven fabric coa... | 04/19/2005 |
| 6831023 | Linoleum floor covering The invention relates to an electrically conductive floor covering based on linoleum, comprising a wear layer and a sub-layer, whereby the floor covering has an electrical volume resistivity R1 according to EN 1081, of a maximum 107 Ω. The inv... | 12/14/2004 |
| 6794078 | Fuel cell, fuel cell separator, and method of manufacture thereof A fuel-cell separator comprising a resin and an electric conductor dispersed in the resin is produced by thermally molding a mixture comprising the electric conductor and the resin. ... | 09/21/2004 |
| 6475933 | Highly conductive elastomeric sheet Highly conductive elastomeric sheet. Preferably, the conductive elastomeric sheet comprises a conductive wire mesh loaded into an elastomeric matrix from which is also loaded with a conductive particulate. Preferably, the particulate comprises carbon part... | 11/05/2002 |
| 6245694 | Static dissipative automotive bedliners Automotive bedliners (e.g., for pickup trucks) are formed from a sheet of thermoplastic material having electrically conductive fibers embedded in a surface thereof in an amount sufficient to render said sheet electrically conductive. The bedliners are mo... | 06/12/2001 |
| 6239050 | Photocatalytic filter with fiber glass mat carrier A matrix for use in a method of photocatalytically decomposing organic compounds in a fluid includes a fiber glass mat substrate carrying a photocatalytic material. The fiber glass mat is made of randomly oriented glass fibers that have been substantially... | 05/29/2001 |
| 6200914 | Electrically poorly conductive material for producing an insulation sleeve An electrically poorly conductive material for producing external glow-discharge protection for an electrical conductor, includes a base material which is provided with a conductive coating on at least one side. In order to ensure adequate external glow-d... | 03/13/2001 |
| 5763069 | Electrically conductive tapes and processes Electrically conductive tape yarns of two or more layers comprising thermoplastic polymer resin and electrically conductive particles, a process for making such tapes and fabrics comprising such tape yarns are disclosed.... | 06/09/1998 |
| 5733823 | Prepreg for printed circuit board and substrate for printed circuit using said prepreg There are provided a prepreg for a printed circuit board which comprises a glass cloth impregnated with a flame retardative resin composition comprising a (A) resin composed of a (a) styrenic polymer having syndiotactic configuration, a (b) polymer having... | 03/31/1998 |
| 5478865 | Method of recycling a discarded polyurethane foam article A method of recycling discarded PU foam articles comprises a first step of grinding the discarded PU foam articles into fine particles, which are then mixed with a predetermined amount of a powdered plastic to form a mixture. The mixture is heated to beco... | 12/26/1995 |
| 5466917 | Microwave-absorptive heat-generating body and method for forming a heat-generating layer in a microwave-absorptive heat-generating body A sheet-like heat generation body for use in a microwave oven, which absorbs microwave and generates heat to irradiate food to be cooked. This heat generation body comprises a conductive film, which is made of a crystalline carbon as its principal compone... | 11/14/1995 |
| 5415934 | Composite temperature sensitive element and face heat generator comprising the same Disclosed is a composite temperature-sensitive element having temperature self-controlling characteristics, which comprises graphite or carbon black, a lowly dimensional substance composed mainly of a crosslinked polymer and a linear polymer, and optional... | 05/16/1995 |
| 5371326 | Non-toxic fabric conductors and method for making same An electrical conductor and method of making same is disclosed whereby the conductor is particularly suited for use in soft children's toys because it is washable, non-toxic, safe, durable and crumple-resistant. The conductor is comprised of a nonwoven ma... | 12/06/1994 |
| 5284701 | Carbon fiber reinforced coatings Carbon fiber mats are embedded in a coating by first rolling on a coating of e.g. epoxy on the floor or wall, then applying sheets of fine carbon fibers, (optionally) removing the carbon fiber which is not adherent after the coating has dried, then applyi... | 02/08/1994 |
| 5223327 | Electrically conductive surface element for forming an electromagnetic wave absorber An electrically conductive surface element, for use in the construction of external facades, is provided with a flame-retardant substance in addition to a radar-absorbing supporting element with electromagnetically active conductive material which has pre... | 06/29/1993 |
| 5176852 | Adhesive compositions An adhesive composition comprising: (a) about 30 to about 95 parts by weight of a grafted linear low density polyethylene; (b) about 5 to about 70 parts by weight of a grafted (i) copolymer of ethylene and an unsaturated ester or (ii) a non-polar polyethylene ... | 01/05/1993 |
| 5112677 | Electret sheet and a method for the production of the same An electret sheet comprises a porous sheet made of a dielectric polymer and at least one solid material selected from the group consisting of organic materials, inorganic materials, and metallic materials, the porous sheet having the material spaced at va... | 05/12/1992 |
| 5047286 | Printing sheets Disclosed is a printing sheet comprising (a) a support, and (b) a surface layer provided on at least one side surface of the support, the surface layer containing at least one compound selected from the group consisting of n-butyl (meth)acrylate based polymers... | 09/10/1991 |
| 4759977 | Flexible carbon material A flexible carbon material is produced by carbonizing a composite material comprising carbon fibers having an average length of 6 to 50 mm and a binding agent. Carbon lumps are derived from the binding agent and are dispersed in a matrix of the carbon fib... | 07/26/1988 |
| 4722860 | Carbon film coated refractory fiber cloth A flexible electrically conducting cloth is described which comprises a plurality of intermingled or interwoven refractory fibers the sheet resistance of which exceeds 1,000 ohms per square inch and a conducting coating encapsulating a majority of the fib... | 02/02/1988 |
| 4534998 | Conductive coating process Conductive coating (20) is produced by the process of first mixing by high shear mixing a mixture of 0.03 parts per weight of carbon black together with 0.003 to 0.01 parts per weight of wetting agent and 20 parts of solvent, and further mixing in by low ... | 08/13/1985 |
| 4438174 | Polyester antistatic laminate materials An anti-static laminate material comprising a glass-reinforced panel having an electrically conductive mesh disposed at or just below its operational surface. The mesh is positioned near enough to the surface to impart a predetermined surface conductivity... | 03/20/1984 |
| 4375493 | Refractory coated and conductive layer coated flame resistant insulating fabric composition Fabric base compositions having a refractory coating on one side and a conductive layer coating on the other side exhibit flame and heat resistance and electrical conducting properties.... | 03/01/1983 |
| 4239794 | Process of dispersing electro-conductive carbon black and web product made thereby Novel process for dispersing electroconductive carbon black to make novel conductive web products and the dispersions produced therewith. The process comprises dispersing said carbon black in an aqueous media using tris (2,3 dibromopropyl) phosphate, or t... | 12/16/1980 |
| 4219602 | Electrically conductive/antistatic sheeting A multi-layered sheeting material is disclosed whereby conductive properties are imparted to one surface and antistatic properties are imparted to the other. In a further embodiment, the sheeting material contains a reinforcing layer. This light-weight sh... | 08/26/1980 |
| 4178405 | Magnetic belt with conductive coating A magnetic belt for magnetic printing and the like has a relatively low surface resistivity provided by a conductive surface layer to eliminate unacceptable toner background.... | 12/11/1979 |
| 4153749 | Carpeting An anti-static carpet in which the sole conductive layer is a secondary backing having a surface resistivity less than 1011 ohms per square. In the disclosed embodiment, the secondary backing includes a backing base and a conductive composition... | 05/08/1979 |