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| Number | Title | Issue Date |
| RE43044 | Electrically conductive pavement mixture An electrically conductive paving system that has enhanced conductivity of the conductive graphite/asphalt layer. This is achieved by incorporating into the paving mixture a blend of two naturally occurring crystalline flake graphites, one being coarse (generally la... | 12/27/2011 |
| 7666469 | Method of making graphite-coated particulate materials An coated particulate is provided with a graphite-impregnated resin coating. The oil field particulates may comprise any of gravel-pack sand, granular betonite, ground Gilsonite, calcium carbonate, glass beads, rock wool, shredded paper, metal spheres, ceramic beads... | 02/23/2010 |
| 7617869 | Methods for extracting oil from tar sand Hydrocarbon containing formations can be processed using an in-situ liquefaction technique. This new technique embodies systematic temperature elevation applied to subsurface formation allowing recoverable hydrocarbons to reach a Newtonian fluid viscosity suitable f... | 11/17/2009 |
| 7402338 | Graphite-coated particulate materials An coated particulate is provided with a graphite-impregnated resin coating. The oil field particulates may comprise any of gravel-pack sand, granular betonite, ground Gilsonite, calcium carbonate, glass beads, rock wool, shredded paper, metal spheres, ceramic beads... | 07/22/2008 |
| 6971819 | Electrically conductive pavement mixture An electrically conductive paving system that has enhanced conductivity of the conductive graphite/asphalt layer. This is achieved by incorporating into the paving mixture a blend of two naturally occurring crystalline flake graphites, one being coarse (generally la... | 12/06/2005 |
| 6756027 | Method of preparing graphite intercalation compounds and resultant products A method of preparing graphite intercalation compounds in which graphite particles are immersed in an aqueous electrolyte media comprising both an acid and an oxidizing agent. The immersed graphite particles are subjected to an anodic current and then removed from t... | 06/29/2004 |
| 6660434 | Engineered carbonaceous materials and power sources using these materials An engineered carbonaceous material (ECM) comprising a mixture of synthetic graphite and one or more other graphite, such as natural flake graphite, natural vein graphite, and/or amorphous graphite. The objects are also achieved by an ECM comprising a mix... | 12/09/2003 |
| 6350722 | High-temperature, water-based lubricant and process for making the same A high-temperature lubricant comprising a water-base and minor effective amounts of borate, dextrin, graphite, xanthan gum, and an organic preservative. A powder for preparing a water-based high temperature lubricant is disclosed in which the powder compr... | 02/26/2002 |
| 6287694 | Method for expanding lamellar forms of graphite and resultant product A method for making expanded graphite from lamellar flake graphite comprising first providing lamellar flake graphite particles having at least a minimal purity, then intercalating the lamellar flake graphite particles with an expandable graphite intercal... | 09/11/2001 |
| 6194358 | Hopper car anti-bridging method and coating A method of treating hopper cars to prevent bridging or sticking of bulk commodities during unloading by applying a coating of a mixture comprising pigments including graphite, solvents, resins, a drier/cross-linking/hardening system, and a rheological sy... | 02/27/2001 |
| 6169059 | High-temperature, water-based lubricant and process for making the same A high-temperature lubricant comprising a water-base and minor effective amounts of borate, dextrin, graphite, xanthan gum, and an organic preservative. A powder for preparing a water-based high temperature lubricant is disclosed in which the powder compr... | 01/02/2001 |
| 5826669 | Drilling fluid loss prevention and lubrication additive A method of preventing or controlling the loss of well drilling fluid into the pores and fractures of subterranean rock formations by the addition of resilient graphitic carbon particles to the drilling fluid in sufficient amounts to plug the pores and fr... | 10/27/1998 |
| 5348694 | Method for electroconsolidation of a preformed particulate workpiece A method of consolidating particulate materials or combinations of such materials into shaped products of very low porosity. High compaction pressures are applied at temperatures in the range of sintering temperature of the materials being consolidated to... | 09/20/1994 |
| 5294382 | Method for control of resistivity in electroconsolidation of a preformed particulate workpiece The present invention comprises an improved method of controlling resistivity in a process for consolidating particular materials or combinations of such materials into shaped products of very low porosity. High compaction pressures are applied at tempera... | 03/15/1994 |
| 5246638 | Process and apparatus for electroconsolidation The present invention is directed generally to apparatus for and improvements in powdered metal consolidation processes, some of which referred to as "electroconsolidation" processes, and more particularly to processes employing specially shaped rams or e... | 09/21/1993 |
| 4634545 | Railroad track lubricant A method of lubricating a railroad track comprising the steps of dispersing together a mixture of at least 30% by weight of powdered graphite having an average particle size of not larger than 50 microns, and an oil based carrier to yield a viscosity of a... | 01/06/1987 |
| 4560409 | Metal bearing graphitic carbons This invention relates to the production of a unique class of granular graphitic carbon materials containing metallic elements dispersed throughout the graphitic structure. More specifically, the unique class of products contain elements that enhance the ... | 12/24/1985 |
| 4547430 | Ultra-microcrystallite silicon carbide product The present invention is directed to a reaction product of silica sand and of particulate carbonaceous material to form, silicon carbide on the surface of the carbonaceous particles and within the pores thereof, with the silicon carbide ultra-microcrystal... | 10/15/1985 |
| 4543240 | Method for the continuous production of carbides One aspect of the present invention relates to methods for the continuous production of silicon carbide and other carbide and refractory products by fluidized bed techniques, the apparatus for such continuous production, and the carbide products produced ... | 09/24/1985 |
| 4435444 | Method of making ultra-microcrystallite silicon carbide product The present invention is directed to a reaction product of silica sand and of particulate carbonaceous material to form, silicon carbide on the surface of the carbonaceous particles and within the pores thereof, with the silicon carbide ultra-microcrystal... | 03/06/1984 |
