Famous Patents
The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
PatentStorm News
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 |
| 8178586 | Method for reducing the viscosity of viscous fluids A viscous fluid, such as heavy crude oil which is too viscous to enable it to be pumped from a flowing phase of a reservoir into and along a pipeline for delivery to a refinery or other storage facility, may be contacted with a formulation to reduce its viscosity. T... | 05/15/2012 |
| 8044106 | Saponified fatty acids as viscosity modifiers for viscoelastic surfactant-gelled fluids Fluids viscosified with viscoelastic surfactants (VESs) may have their viscosities affected (increased or reduced) by the indirect or direct action of a composition that contains at least one fatty acid that has been affected, modified or reacted with an alkali meta... | 10/25/2011 |
| 7947745 | Reducing the viscosity of an aqueous fluid An aqueous fluid having a viscosity greater than the viscosity of water is contacted with a water soluble material for a time and at a temperature sufficient to reduce the viscosity of the aqueous fluid to a value which is less than about 10 percent of the initial v... | 05/24/2011 |
| 7745500 | Method for reducing the viscosity of viscous fluids A viscous fluid, such as heavy crude oil which is too viscous to enable it to be pumped from a flowing phase of a reservoir into and along a pipeline for delivery to a refinery or other storage facility, may be contacted with a formulation to reduce its viscosity. T... | 06/29/2010 |
| 7303664 | Delayed coking process for producing free-flowing coke using a metals-containing additive A delayed coking process for making substantially free-flowing coke, preferably shot coke. A coker feedstock, such as a vacuum residuum, is heated in a heating zone to coking temperatures then conducted to a coking zone wherein volatiles are collected overhead and c... | 12/04/2007 |
| 7270803 | High-cleaning, low abrasion, high brightness silica materials for dentrifices Unique abrasive materials that are in situ generated compositions of precipitated silicas and silica gels are provided. Such compositions exhibit different beneficial, particularly simultaneously high pellicle film cleaning properties and moderate dentin abrasion le... | 09/18/2007 |
| 7267814 | High-cleaning/low abrasive silica and materials and dentifrice containing such materials Unique abrasive and/or thickening materials that are in situ generated compositions of precipitated silicas and silica gels are provided. Such compositions exhibit different beneficial characteristics depending on the structure of the composite in situ generated mat... | 09/11/2007 |
| 7255852 | Precipitated silica product, dentifrices containing same, and processes Precipitated silica comprising porous silica particles having a cumulative surface area for all pores having diameters greater than 500 Å of less than 8 m2/g, as measured by mercury intrusion, and a percentage cetylpyridinium chloride (% CPC) Compatibil... | 08/14/2007 |
| 7244770 | Method for evaluating an optimal dosage of defoamers in a fermentation process Methods suitable for selecting optimal defoamers for use in fermentation processes are described wherein the methods comprise: (a) determining an amount of each of two or more defoamers which provides a requisite dynamic surface tension of at most 50 mN/m at a parti... | 07/17/2007 |
| 7244361 | Metals/minerals recovery and waste treatment process A metals/minerals recovery and waste treatment process comprising a main separation stage in which a metal/mineral-bearing ore is slurried with water and separated into an enriched fraction and an aqueous metal/mineral waste fraction, and a waste sedimentation stage... | 07/17/2007 |
| 7208529 | Aminocarboxylic acid breaker compositions for fracturing fluids It has been discovered that aminocarboxylic acids are effective breakers for polymer-gelled aqueous fracturing fluids, particularly in the temperature range between about 120° F. (49° C.) and about 280° F. (138° C.). The aminocarboxylic acids are believed to act... | 04/24/2007 |
| 7160842 | Polyols for breaking of fracturing fluid It has been discovered that fracturing fluid breaker mechanisms are improved by the inclusion of a polyol alone that directly degrades the polysaccharide backbone, and optionally additionally by removing the crosslinking ion, if present. That is, viscosity reduction... | 01/09/2007 |
| 7084093 | Catalyzed polyol gel breaker compositions It has been discovered that fracturing fluid breaker mechanisms are improved by the inclusion of a catalyzed polyol alone that directly degrades the polysaccharide backbone, and optionally additionally by removing the crosslinking ion, if present. That is, viscosity... | 08/01/2006 |
| 7078343 | Method of manufacturing compound semiconductor wafer Compound-semiconductor-wafer manufacturing whereby particle adherence, and obverse-surface oxidization and alteration are slight and the use of organic solvents is reduced. An adsorption pad is bonded to a polishing plate, and a wafer being adsorbed onto the adsorpt... | 07/18/2006 |
| 7001634 | Process for suppressing the foaming of an aqueous system The present invention relates to a process for suppressing the foaming of an aqueous system which involves combining water and at least one defoamer composition which has a hydroxyl equivalent molecular weight of at least 4000 Da and a cloud point less than or equal... | 02/21/2006 |
| 6962653 | Autothermal aerobic digestion system having closed defoaming system Disclosed is an autothermal aerobic digestion system having closed defoaming system. The system according to the present invention completely controls light and heavy foam by using a series of aeration venturi and defoamer venturi and a foam collector pipe. Accordin... | 11/08/2005 |
| 6946119 | Precipitated silica product with low surface area, dentifrices containing same, and processes Precipitated silica product having low surface area and enhanced flavor compatibility. The precipitated silica product is especially well-adapted for use in dentifrices containing cetylpyridinium chloride, which do not attach to the low surface area silica product i... | 09/20/2005 |
| 6893798 | Method of lithographic printing with a reusable substrate A method for treating a micro-emulsion that can be used for removing the ink-accepting areas of a lithographic printing master is disclosed, which enables to recycle the water from the used micro-emulsion. The method comprises the heating of the micro-emulsion to a ... | 05/17/2005 |
| 6706769 | Aminocarboxylic acid breaker compositions for fracturing fluids It has been discovered that aminocarboxylic acids are effective breakers for polymer-gelled aqueous fracturing fluids, particularly in the temperature range between about 120° F. (49° C.) and about 280° F. (138° C.). The aminocarboxylic acids are believed to act... | 03/16/2004 |
| 6569358 | Method for incorporating metal nanoparticles in porous materials The method of preparing the porous material incorporating ultrafine metal particles comprises the following steps: (1) preparing surface-protected ultrafine metal particles by reducing metal ions in the presence of molecules such as dodecanethiol molecule... | 05/27/2003 |
| 6485656 | Agents for unsticking paint, and sedimentation agents Paint detackifiers and/or sedimentation agents are provided which contain amorphous alumina and/or alumina in pseudoboehmite or boehmite form having an average crystallite size of from 0.1 to 15 nm and/or the hydrates and hydroxyalkylpolysaccharides there... | 11/26/2002 |
| 6376561 | Dewatering of aqueous suspensions Belt pressing or other pressure dewatering of a high solids mineral suspension is facilitated by flocculating the suspension by mixing into the suspension anionic flocculant having IV at least 5 dl/g and a minor amount of a cationic flocculant which gener... | 04/23/2002 |
| 6306345 | Industrial scale barrier technology for preservation of sensitive biological materials at ambient temperatures This invention relates to barrier methods for preserving sensitive biological materials as a porous foam, subsequently crushing the foam to form a powder, and optionally formulating mixtures of preserved powdered biological materials. The invention also e... | 10/23/2001 |
| 6297413 | Antifoaming agents Paraffinic oils which comprise in the range of from 45% to 100% basis mass per mass of one or more paraffinic hydrocarbon(s) and have an average molecular weight in the range of from 100-200 are useful as antifoam agents, especially in a surfactant-contai... | 10/02/2001 |
| 6200498 | Process for producing paraffin-containing foam regulators A process for producing pourable foam regulator granules containing a defoamer combination of a paraffin wax and a bisamide derived from diamines and carboxylic acids and an inorganic, water-soluble or water-dispersible carrier salt by pelletizing in a gr... | 03/13/2001 |
| 6190575 | Polymer electrolyte, a polymer aggregating agent prepared therefrom, and a disposal of waste water A polymer electrolyte which contains an inorganic pigment, having a sulfonated polystyrene resin as a principal ingredient, and is soluble to water.... | 02/20/2001 |
| 6106604 | Bitumen emulsion, process of producing a bitumen emulsion and process of producing a bituminous material for the construction or maintenance of pavements Bitumen emulsion including bituminous phase having one of pure bitumen, fluxed bitumen, and modified bitumen. The bitumen emulsion also includes an aqueous phase including water and an emulsifying agent. The bitumen emulsion further includes a breaking ag... | 08/22/2000 |
| 6086783 | Polymer electrolyte, a polymer aggregating agent prepared therefrom, and a disposal of waste water A polymer electrolyte which contains an inorganic pigment, having a sulfonated polystyrene resin as a principal ingredient, and is soluble to water.... | 07/11/2000 |
| 6077888 | High viscosity cationic slow-set and medium-set emulsions This invention relates to improved bituminous emulsions, specifically to cationic medium-set and slow-set mixing grade emulsions. More particularly, it relates to emulsifying compositions which can be used to produce bituminous emulsions exhibiting high v... | 06/20/2000 |
| 6060164 | Flocculating or viscosifying compositions and their production and use Primary polymer particles having a size at least 90% below 10 μm and which contain water soluble and water insoluble polymer are made by reverse phase polymerisation of a water soluble ethylenically unsaturated monomer or monomer blend with cross linking... | 05/09/2000 |
| 5830388 | Coagulating and flocculating agent and method for making it A coagulating and flocculating agent based on aluminum pentahydroxychloride for purifying and treating water and/or waste water and/or sludge and/or other contaminated liquids as well as to separate suspended and colloidal particles from liquids in indust... | 11/03/1998 |
| 5830315 | Treatment of Aqueous systems using a chemically modified tannin There is provided a composition comprising tannin containing hydroxyl groups which has been (a) chemically modified by reaction of at least one of said hydroxyl groups with at least one member selected from the group consisting of an esterification agent ... | 11/03/1998 |
| 5813466 | Delayed acid for gel breaking A crosslinked water-based gel, for example a gel plug in an underground rock formation or a pipeline, is broken by an enzyme and a substrate which is capable of being converted by the enzyme into an organic acid which breaks down the gel. The enzyme is al... | 09/29/1998 |
| 5738795 | Compositions and methods for water clarification Copolymers of low molecular weight polysaccharides and cationic monomers, their method of production and method of using as water treatment agents are disclosed. Preferably the copolymer comprises alginic acid and methyl chloride quaternary salt of dimeth... | 04/14/1998 |
| 5643461 | High performance dewatering aids Water-soluble, branched, high molecular weight, cationic polymers are used in combination with low molecular weight, cationic polymers to provide the highly improved dewatering of suspended solids. Water-in-oil emulsions containing these cationic polymers... | 07/01/1997 |
| 5419834 | Precipitating agent for the precipitation of heavy metals A precipitating agent containing thioacetamide is described for the precipitating of heavy metals from flue gases and waste waters, it containing thioacetamide (C2 H5 SN) in a 1-20% aqueous solution, which, in addition, contains a bu... | 05/30/1995 |
| 5405554 | High performance dewatering aids Water-soluble, branched, high molecular weight, cationic polymers are used in combination with low molecular weight, cationic polymers to provide the highly improved dewatering of suspended solids. Water-in-oil emulsions containing these cationic polymers... | 04/11/1995 |
| 5372650 | Method for treatment of waste sand A process system is disclosed for the treatment of a waste sand material containing metal contaminants. The waste sand material is the product of sandblasting techniques used to remove paint. The metal contaminants generally include lead, copper, chromium... | 12/13/1994 |
| 5302296 | Water clarification using compositions containing a water clarifier component and a floc modifier component Materials such as amines, alcohols, aminoalcohols, ethers and mixtures thereof, including halogenated adducts thereof, have been found to be useful floc modifiers for water clarifiers to form an effective overall water clarifier composition. The water cla... | 04/12/1994 |
| 5273682 | Viscosity control additives for foaming mixtures The method for the enhanced recovery of hydrocarbons from a hydrocarbon bearing reservoir during gas injunction into the reservoir comprises the at least periodic injection of steam and a foam-forming mixture into the reservoir from a known depth interval... | 12/28/1993 |
