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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7704930 | Mixed TBN detergents and lubricating oil compositions containing such detergents The present invention concerns a detergent additive for lubricating oil compositions comprising at least two of low, medium, and high TBN detergents. Preferably the detergent is a calcium salicylate. The present invention also concerns lubricating oil compositions c... | 04/27/2010 |
| 7689370 | On-line absolute viscosity measurement system The present invention provides systems and methods for determining the viscosity of a lubricating fluid in a process on line. The method of the present invention obviates the need to accurately control the temperature of the lubricating fluid in the system when taki... | 03/30/2010 |
| 7683013 | Base stock lubricant blends for enhanced micropitting protection A lubricant formulation and method of blending a lubricant formulation is disclosed. The lubricant formulation comprises at least two base stocks. The first base stock comprises a viscosity greater than 100 cSt, Kv100° C. The second base stock comprises a viscosity... | 03/23/2010 |
| 7592411 | Synthetic lubricant composition and process A liquid polymer suitable for use as a lubricant base oil is produced by polymerizing ethylene and at least one alpha-olefin using a metallocene catalyst to provide a polymer which is then isomerized and hydrogenated to produce the liquid polymer. ... | 09/22/2009 |
| 7579303 | Polar solvent-asphaltene dispersant method for upgrading heavy oils A method for reducing the viscosity and toluene equivalence of an oil containing asphaltenes comprises the steps of: a) mixing with the oil, a polar solvent, and an asphaltene dispersant additive wherein the weight ratio of oil:polar solvent is in the range of 10:0.... | 08/25/2009 |
| 7442936 | Infrared spectroscopy method for measuring the base number of overbased lubricants The present invention provides a method for measuring a lubricant's total basicity by measuring one or more preselected infrared absorption bands of a lubricant and correlating the measured bands to the basicity. Preferably, the measured bands are due to carbonate o... | 10/28/2008 |
| 7435333 | Upgrading asphaltene containing oils A method for reducing the viscosity and surface wetting tendency of an oil containing hydrophilic aspaltenes comprises adding to said oil an amount of hydrophobic asphaltenes in the range of 1 to 80 wt % based on weight of the hydrophilic asphaltense of said oil. | 10/14/2008 |
| 7407809 | Method for determining asphaltenes contamination in used marine engine lubricants using UV-visible spectroscopy and chemometrics A method for determining contamination in marine diesel lubricating oils. The method has been found to have particular utility in estimating asphaltenes contamination in marine diesel lubricating oils. The method includes the steps of: (a) obtaining spectral raw dat... | 08/05/2008 |
| 7339003 | Antioxidants and antioxidant boosters capable of producing hydroperoxyl radicals An antioxidant which comprises a primary aliphatic hydroxyl group linked to an organic backbone such that upon oxidation a hydroperoxyl moiety capable of boosting the efficacy of free radical scavengers and hydroperoxide decomposer type antioxidants is generated in ... | 03/04/2008 |
| 7253644 | Apparatus and method for measuring electrochemical and viscoelastic properties of a liquid An apparatus for measuring electrochemical and viscoelastic properties of a liquid includes two sensing components, an electrochemical impediance spectroscopy component and a quartz crystal microbalance component positioned within a housing for receiving a liquid fo... | 08/07/2007 |
| 7241621 | Method for determining residual fuel and insolubles contamination in used marine engine lubricants using UV-visible spectroscopy and chemometrics A method for determining contamination in marine diesel lubricating oils. The method has been found to have particular utility in estimating residual fuel and insolubles contamination in marine diesel lubricating oils. The method includes the steps of: (a) obtaining... | 07/10/2007 |
| 7183241 | Long life lubricating oil composition with very low phosphorus content A lubricating oil with very low phosphorus content, and having long life as evidenced by a reduction in viscosity increase, oxidation and nitration, comprises a major amount of a base oil of lubricating viscosity and a minor amount of a mixture of neutral and overba... | 02/27/2007 |
| 7176168 | Lubricant containing a synergistic combination of rust inhibitors, antiwear agents, and a phenothiazine antioxidant The present invention describes an improved lubricant composition comprising a particularly effective combination of components comprising ashless antiwear and rust inhibitor additives with an antioxidant liquid mixture formed by reacting an olefin with a mixture of... | 02/13/2007 |
| 7172903 | Method for on-line monitoring of lubricating oil using light in the visible and near IR spectra Oil aging and particulate building in a lubricant other than one exposed to combustion products is monitored by detecting light transmitted through the lubricant at least one, and preferably, two or more preselected wavelengths over a pathlength greater than about 0... | 02/06/2007 |
| 7144436 | Fuel composition A fuel composition comprising gasoline having a sulphur content of less than 10 ppm by weight and an aromatic content of less than 25% by volume, characterized in that said composition comprises at least 5% by volume of olefins and is substantially free of any ether... | 12/05/2006 |
| 7124728 | Modification of lubricant properties in an operating all loss lubricating system A marine diesel engine system includes a diesel engine having a plurality of cylinders. The system also includes, proximate the engine, a primary engine lubricant and an additive selected from certain alkylamine-alkylphosphates, 500 TBN calcium sulfonate and mixture... | 10/24/2006 |
| 7109729 | Method for analysis of a working fluid using impedance spectroscopy An on-line method for determining the condition of low conductivity working fluids using alternating current, electro-impedance spectroscopy is provided by making measurements over a range of frequencies at temperatures at or above 50° C. ... | 09/19/2006 |
| 7108780 | Oil desalting by forming unstable water-in-oil emulsions A method for determination for a given oil the relative stability of a water-in-oil emulsion that will be formed by that oil with water comprises measuring for the given oil the weight percent asphaltenes (A), total acid number (TAN), and ratio of the amount of naph... | 09/19/2006 |
| 7026951 | Data telemetry system for multi-conductor wirelines An improved data telemetry system for multi-conductor wirelines to achieve satisfactory transmission of analog and digital signals with frequency content up to 100 kHz by assigning at least two conductors to a first terminal of a data transmittal means and to a firs... | 04/11/2006 |
| 7022784 | Synthetic lubricant composition and process A liquid polymer suitable for use as a lubricant base oil is produced by polymerizing ethylene and at least one alpha-olefin using a metallocene catalyst to provide a polymer which is then isomerized and hydrogenated to produce the liquid polymer. ... | 04/04/2006 |
| 7014773 | Demulsification of emulsions by socillatory mixing The invention includes a method for demulsification of water-in-oil emulsions, oil-in-water emulsions, and mixtures of water-in-oil and oil-in-water emulsions by oscillatory mixing of the emulsions. ... | 03/21/2006 |
| 6979395 | Fuel composition This invention relates to a fuel composition comprising a base fuel having a final boiling point above 150° C. and an anti-foam, characterised in that the anti-foam comprises di-isobutylene in an amount greater than 2.5% by volume based on the total fuel compositio... | 12/27/2005 |
| 6885941 | Method for predicting properties of a sedimentary deposit from a thickness contour of the deposit The properties of a water-lain sedimentary deposit may be predicted at any location from a contour of constant deposit thickness. One embodiment of the method comprises (a) determining an outline of constant deposit thickness in a measured deposit, (b) determining t... | 04/26/2005 |
| 6823266 | Method for performing object-based connectivity analysis in 3-D seismic data volumes A method for predicting the connectivity of seismic objects identified by seed detection or similar methods. ... | 11/23/2004 |
| 6814141 | Method for improving oil recovery by delivering vibrational energy in a well fracture This invention provides a method for improving oil recovery, preferably a high-viscosity oil relying on gravity drainage, by applying vibrational energy. A fracture is created at a wellbore and a fluid displacement device is inserted at or near the fracture opening.... | 11/09/2004 |
| 6779604 | Deformable gravel pack and method of forming A gravel pack is formed using a mixture of a solid deformable material and conventional gravel pack gravel. In the event of reservoir compaction, such a gravel pack will reduce the transmission of forces from the subterranean formation to the wellbore completion har... | 08/24/2004 |
| 6769486 | Cyclic solvent process for in-situ bitumen and heavy oil production A process for recovery of hydrocarbons in a production fluid from an underground reservoir of said hydrocarbons, the process comprising of: (a) injecting a viscosity reducing solvent of a fraction of said hydrocarbons into said reservoir at a pressure in the reservo... | 08/03/2004 |
| 6767228 | Internal safety cover and method to prevent electrical shock This invention is an internal safety cover for use in electrical outlets that provides increased protection against electrical shock. The internal safety cover is designed to be slidably positioned inside the conductive members of an electrical outlet. One embodimen... | 07/27/2004 |
| 6751985 | Process for producing a pressurized liquefied gas product by cooling and expansion of a gas stream in the supercritical state This invention is a method and apparatus for production of pressurized liquefied gas. First, a gas stream is cooled and expanded to liquefy the gas stream. The liquefied gas stream is then withdrawn as pressurized gas product and a portion is recycled through the he... | 06/22/2004 |
| 6738715 | Method for attenuating noise in seismic data The invention is a method for attenuating noise in seismic data traces, in which at least a portion of the noise is noncoherent in the common-shot domain but coherent in the common-receiver domain, the coherent noise having a move-out velocity different from the mov... | 05/18/2004 |
| 6708759 | Liquid addition to steam for enhancing recovery of cyclic steam stimulation or LASER-CSS LASER-CSS provides a method to improve cyclic steam-based thermal recovery methods for heavy oils and bitumen. A key improvement over prior art consists of mixing liquid hydrocarbons into the injected steam instead of injecting such hydrocarbon as a separate slug in... | 03/23/2004 |
| 6674689 | Method for morphologic analysis of seismic objects A method for analyzing and classifying the morphology of seismic objects extracted from a 3D seismic data volume. Any technique may be used to extract the seismic objects from the 3D seismic data volume. According to the inventive method, one or more morp... | 01/06/2004 |
| 6668943 | Method and apparatus for controlling pressure and detecting well control problems during drilling of an offshore well using a gas-lifted riser A method and apparatus for controlling the riser base pressure and detecting well control problems, such as kicks or lost circulation, during drilling of an offshore well using a gas-lifted riser. The pressure control apparatus preferably includes two sep... | 12/30/2003 |
| 6662872 | Combined steam and vapor extraction process (SAVEX) for in situ bitumen and heavy oil production Steam is injected into the reservoir, heats the reservoir to mobilize and recover at least a fraction of reservoir hydrocarbons, forming a steam chamber in the reservoir. The steam is continuously injected into the reservoir to mobilize and recover reserv... | 12/16/2003 |
| 6659180 | Deepwater intervention system The well intervention system of the invention is a novel subsea deployed wire line, "stiff wire" (conventional wire-line located inside reeled tubing or embedded in the tubing wall), coil tubing, or reeled pipe unit landed on the existing subsea wellhead ... | 12/09/2003 |
| 6644406 | Fracturing different levels within a completion interval of a well Method and apparatus for fracturing different levels of a completion interval in a well. A workstring lowers a fracturing string which, in turn, is comprised of a base pipe which is blank except for perforated sections spaced along its length. Screen may ... | 11/11/2003 |
| 6634430 | Method for installation of evacuated tubular conduits A method of installing tubular conduits (e.g. casing, liners, sand screens) into a highly deviated borehole. A lower plug is attached at one end of a portion of a tubular conduit. This end is inserted into a borehole. After insertion of the length of cond... | 10/21/2003 |
| 6591193 | Method and apparatus for acquiring offset checkshot survey data using tube-wave conversion A method and apparatus for reliable and low-cost acquisition of offset checkshot survey data using tube wave conversion. An acoustic receiver is deployed in a fluid-filled well, preferably at or near the top thereof. At least one tube-wave conversion poin... | 07/08/2003 |
| 6575247 | Device and method for injecting fluids into a wellbore A device and method for delivering fracture fluid (e.g., erosive materials) into an oilfield wellbore while the well has wireline, coiled tubing, jointed tubing or any other apparatus encumbering the flow path of the erosive fluid that is being injected i... | 06/10/2003 |
| 6393906 | Method to evaluate the hydrocarbon potential of sedimentary basins from fluid inclusions A method for evaluating sedimentary basins for hydrocarbon potential using aqueous fluid inclusions. Aqueous fluid inclusions are identified in a rock sample. The homogenization temperatures of the fluid inclusions are determined, the optical spectra of t... | 05/28/2002 |
