The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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 |
| 7169477 | Composition for preparing porous dielectric thin films The present invention provides a composition for preparing porous dielectric thin films containing pore-generating material, said composition comprising gemini detergent, and/or a quaternary alkyl ammonium salt, a thermo-stable organic or inorganic matrix precursor,... | 01/30/2007 |
| 6835459 | Conductive organic coatings A conductive and weldable anti-corrosion composition for coating metal surfaces which contains: (a) 5 to 40 wt. % of an organic binder containing: (aa) at least one epoxide resin (ab) at least one hardener selected ... | 12/28/2004 |
| 6740420 | Substrate having a modified native oxide layer for improved electrical conductivity A method for improving the electrical conductivity of a substrate of metal, metal alloy or metal oxide comprising depositing a small or minor amount of metal or metals from Group VIIIA metals (Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt) or from Group IA metals (Cu, Ag, Au) ... | 05/25/2004 |
| 6673405 | Polyacetal resin composition and process for its production About 0.001 to 5 parts by weight of a hindered phenol-series compound, about 0.01 to 5 parts by weight of a weather (light)-resistant stabilizer, and about 0.001 to 10 parts by weight of a spiro-compound having a triazine ring are added to 100 parts by we... | 01/06/2004 |
| 6620527 | Hillock-free aluminum wiring layer and method of forming the same A hillock-free wiring layer and method of forming the same are provided. The wiring layer includes at least two aluminum (Al) layers formed on a substrate, and each of the Al layers includes Al crystal particles. For any two Al layers of the wring layer, ... | 09/16/2003 |
| 6548154 | Electrical charge relaxable wear resistant coating for bias charging or transfer member A bias transfer member or bias charging member for a xerographic device includes a support substrate, and a multi-layer conductive surface coating over the support substrate. The multi-layer coating includes a base layer of metal-containing particles in a... | 04/15/2003 |
| 6432556 | Copper alloy with a golden visual appearance There is provided a copper-base alloy useful for coinage that has a golden visual appearance. The material has a transverse electrical conductivity substantially similar to that of copper alloy C713 and when clad to a copper alloy C110 core, a transverse ... | 08/13/2002 |
| 6221514 | High-current circuit trace and composition and method therefor A method by which a conventional circuit trace (14) is modified with a layer (16) of high-conductivity solder alloy to yield a high-current circuit trace (12) for high-current routing on a substrate (10). The method generally entails the use of a solder c... | 04/24/2001 |
| 5989460 | Electrically conductive coating An electrically conductive floor coating comprising a ferroalloy containing layer including particles of ferroalloy interspersed with a resinous binder.... | 11/23/1999 |
| 5849669 | High temperature superconducting Josephson device and method for manufacturing the same A high critical temperature superconducting Josephson device includes a bicrystal substrate formed of a first single crystal substrate and a second single crystal substrate, with end faces of the first and second single crystal substrates having different... | 12/15/1998 |
| 5773124 | Magnetic recording medium comprising a protective layer having specified electrical resistivity and density This invention relates to the magnetic recording medium, its manufacturing method and the magnetic disk apparatus, in which the ferromagnetic thin film is formed on the substrate board, and the protective layer is provided on that. A Magnetic recording me... | 06/30/1998 |
| 5681663 | Heatspreader carrier strip An intermediate workpiece includes a first strip of laminated material exhibiting high thermal conductivity and which is subject to bowing in response to thermal cycling. A second strip of copper material is welded to the first strip along a longitudinal ... | 10/28/1997 |
| 5643665 | Lithium containing solid electrochemical cells This invention is directed to lithium and lithium alloy metal substrates, coated with a polymeric layer containing dispersed lithium or lithium alloy metal particles. The coated metal finds use as anode material in solid electrochemical cells.... | 07/01/1997 |
| 5573843 | Fiber-reinforced plastic composite material for fastening pallets and process for producing the same Disclosed herein is a fiber-reinforced plastic composite material for fastening pallets to be used to transfer printed circuit boards for automatic soldering. The composite material is composed of a thermosetting resin, reinforcing long fibers, and a ligh... | 11/12/1996 |
| 5545474 | Electromagnetic-attenuating coating materials An electromagnetic-attenuating coating having fibers uniformly dispersed in a lightly loaded dielectric matrix material. The fibers are metal-coated dielectric or semi-conductive fibers such as graphite fibers and the fibers are provided in an amount of l... | 08/13/1996 |
| 5385777 | Porous film, process for producing the same, and use of the same A porous film comprising a composition of 10 to 90% by weight of polypropylene and 10 to 90% by weight of polyethylene having an Mw/Mn ratio, as determined by high-temperature gel-permeation chromatography, of 10 or less is disclosed. The porous film has ... | 01/31/1995 |
| 5334461 | Product formed by method of controlling resistivity of plated metal Method and product resulting therefrom of controlling the residual resistivity of an electrolessly deposited metal by first, calculating the mathematical relationship between the residual resistivity of the deposited metal and its rate of deposition and s... | 08/02/1994 |
| 5275876 | Static dissipative laminate containing an interior special core layer containing carbon fibers A static dissipative laminate consistently having an internal resistance less than 2×106 and a resistance to ground measurement of about 5×106 and a surface resistance in the static dissipative range even at a very low humidities i... | 01/04/1994 |
| 5244746 | Composite structures A composite structure is manufactured by joining a first material, preferably made of a magnetically permeable material and having a first joining surface in which a recess having an overhang surface is formed, to a second material, preferably made of an ... | 09/14/1993 |
| 5240753 | Molded articles for holding wafers The present invention provides a molded article for holding wafers which is made of a thermoplastic resin reinforced with whiskers. The present invention provides wafer holding molded articles, such as transport baskets, storage cases and carriers, for us... | 08/31/1993 |
| 5236789 | Palladium alloys having utility in electrical applications A palladium alloy of the form Pdx My M'z where M is at least one element selected from the group consisting of silicon, iron, nickel, copper, chromium, cobalt, boron and aluminum and M' is at least one element selected fro... | 08/17/1993 |
| 5223349 | Copper clad aluminum composite wire A copper-clad aluminum composite wire has a core that is made of an Al-Mg alloy and circumferentially clad with copper or a copper alloy. The aluminum alloy is composed of 1.5 to 10.0 percent by weight of Mg, additives such as Cr and Mn, ordinary impuriti... | 06/29/1993 |
| 5160374 | Process and apparatus for preventing the pulse discharge of insulators in ionizing radiation A semi-insulating coating or surface layer is applied over insulating materials such as a circuit board or wiring harness or feedthrough insulator. The paint is electrically fixed to ground and as a result leaks away charge buildup before large pulse disc... | 11/03/1992 |
| 5139891 | Palladium alloys having utility in electrical applications A palladium alloy of the form PdNbM where M is at least one element selected from the group consisting of silicon, iron, nickel, copper, cobalt, boron and aluminum is provided. The alloys exhibit oxidation resistance and electrical contact resistance and ... | 08/18/1992 |
| 5106433 | Heat-conductive composite material A heat-conductive composite material usable as a substrate (heat sink) for mounting a semiconductor thereon or a lead frame is provided, which comprises a core sheet and metal foil layers as welded to the both surfaces of the core sheet. The core sheet is... | 04/21/1992 |
| 5059941 | Electrode structure for a thick film resistor A resistor device includes a thick-film resistor which includes a mixture of electrical conductive material and glass, and which has the electrical conductive material at a surface portion exposed; and electrodes which are deposited on the thick-film resi... | 10/22/1991 |
| 4996115 | Composite structure A composite structure and a method of producing said composite structure from a combination of copper and a low coefficient of thermal expansion nickel-iron alloy is disclosed wherein the copper clads the nickel-iron sheet and is interposed through the ce... | 02/26/1991 |
| 4960472 | Anisotropic resistivity material and method of making same A material which exhibits different resistivity in mutually perpendicular directions is formed by providing sections of a first metal and interposing therebetween relatively thin sections of an insert metal. Passes are made over each section of metal inse... | 10/02/1990 |
| 4939041 | Metal film coatings on amorphous metallic alloys Coating of crystalline metals (Ag, Au, Cu, Al) are formed on amorphous melic alloys (glassy metals) by cathode magnetron sputtering. The process can be used to produce new products such as copper coated amorphous metallic alloy wires for torpedo controls... | 07/03/1990 |
| 4826736 | Clad sheets A clad sheet comprising a metal substrate and a metal cladding layer laminated on at least one surface of said substrate, wherein said cladding layer-laminated surface of said substrate includes a hardened layer portion formed by melting and rapid solidif... | 05/02/1989 |
| 4735868 | Composites having improved resistance to stress relaxation The present invention relates to composites having excellent combinations of bending strength, electrical conductivity, stress relaxation in bending and bend formability and having particular utility in electrical connector applications. The composites of... | 04/05/1988 |
| 4699827 | Electric device provided with a silk-screening dielectric coated conductive laminate Starting mixture for an insulating composition, silk-screening ink comprising such a mixture, and the use of said ink for the manufacture of hybrid microcircuits on colaminated sustrates. The invention relates to the formulation of a starting mixture for an ... | 10/13/1987 |
| 4650723 | Material for electric contacts A material for forming contacts for use in connectors, switches and the like for electronic appliances. The material comprises a first metal layer having a conductivity, a second metal layer having a springiness and a plastic layer interposed between thes... | 03/17/1987 |
| 4547436 | Conductive element metallized with a thick film gold composition A conductive element having a metallization paste screen printed on its surface is made using a paste containing 65 to 97% by weight gold and 3 to 25% by weight cadmium/antimony alloy dispersed in an inert liquid vehicle.... | 10/15/1985 |
| 4544611 | Conductive element metallized with a thick film silver composition A conductive element having a metallization paste screen printed on its surface is made using a paste containing 65 to 95% by weight silver and 5 to 35% by weight cadmium/antimony alloy dispersed in a liquid vehicle.... | 10/01/1985 |
| 4472471 | Chair mat This invention describes a transparent chair mat having anti-static qualities. The chair mat is substantially transparent thereby permitting the carpet thereunder to be readily seen. The chair mat can be gounded or not, as desired. This anti-static chair ... | 09/18/1984 |
| 4427993 | Thermal stress relieving bimetallic plate A thermal matching element which exhibits high electrical conductivity and high thermal conductivity is used to join a heat generating semiconductor device with a heat transmissive electrically conductive members. The thermal matching element is independe... | 01/24/1984 |
| 4387137 | Capacitor material A novel laminate adapted for use in the manufacture of capacitors comprising layers of microthin pin-hole free electroformed copper bonded together by a thin layer of hardened dielectric material, said bonded surfaces of said microthin copper having first... | 06/07/1983 |
| 4359414 | Insulative composition for forming polymeric electric current regulating junctions An electric current regulating junction that can be electrically activated to a low resistance state in which it is capable of passing a relatively low reading current. The junction is capable of being activated electrically so as to be switched between l... | 11/16/1982 |
| 4237194 | Conductive polyanaline salt-latex compositions, elements and processes A coating composition useful in forming conductive layers comprises a latex having water as a continuous phase and, as a dispersed phase, hydrophobic polymer particles having associated therewith a polyaniline salt semiconductor. The coating composition c... | 12/02/1980 |