Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7410585 | Apparatus and method for storing and releasing sulfur containing aromatic compounds from a fuel stream of an internal combustion engine Disclosed is a fuel filter for removing sulfur containing compounds from an internal combustion fuel stream. In one embodiment, the fuel filter comprises at least one column comprising an adsorbent. In one exemplary embodiment the adsorbent is capable of removing su... | 08/12/2008 |
| 7378037 | Organotin compound treatment To treat an organotin compound in a liquid at low cost. Addition of iron oxide into a liquid containing an organotin compound allows trapping of the organotin compound in the liquid by the iron oxide, and reduction of the organotin compound concentration in the liqu... | 05/27/2008 |
| 7189327 | Use of anionic copolymers for enhanced recovery of useful coal and potassium chloride from screen bowl centrifuge A method of enhancing the recovery of useful coal or potassium chloride from screenbowl centrifuge separation operations comprising adding to the screenbowl centrifuge, from about 0.005 lbs active polymer/ton dry solids in centrifuge to about 0.70 lbs active polymer... | 03/13/2007 |
| 7179382 | Coated activated carbon for automotive emission control A method for avoidance of attrited carbon dust is disclosed to lead to improved canister performance in emission control. Product attrition by dusting of granular and shaped activated carbons is disclosed to be reduced significantly, or essentially eliminated, by th... | 02/20/2007 |
| 7157002 | Process for the recovery of surfactants The present invention relates to a method for recovering a surfactant from a water-carbon dioxide system comprising at least one type of surfactant, water and carbon dioxide, the method comprising the step of bringing the water-carbon dioxide system into contact wit... | 01/02/2007 |
| 7132110 | Tissue repair compositions and methods for their manufacture and use An osteogenic composition is prepared by a process including the steps of subjecting demineralized bone to an extraction medium to produce an insoluble extraction product and a soluble extraction product, separating the insoluble extraction product and the soluble e... | 11/07/2006 |
| 6962968 | Purification of macrocyclic oligoesters Acid impurities, such as carboxylic acid-terminated polymers, are removed from macrocyclic oligoesters with ion exchange resins, resulting in macrocyclic oligoesters that are substantially free of acid impurities. The ion exchange resins can be regenerated anew and ... | 11/08/2005 |
| 6911150 | Reuse of used cooking oil adsorbants A method for treatment of organic-based material comprising contacting the organic-based material with solid waste material from the treatment of cooking oils. The treatment may comprise a clean-up of said organic-based materials, particularly clean up of an oil spi... | 06/28/2005 |
| 6803183 | Method for removing pyrogens from plasma and blood for treatment of septic shock In general, a method for removal of pyrogens from plasma or blood according to the present invention comprises: (1) passing the biological fluid through a resin comprising two components: (a) a first component comprising a polymeric support with a multiplicity of li... | 10/12/2004 |
| 6790934 | Method for purification of aromatic polyethers Aromatic polyethers are prepared by displacement polymerization reaction in the presence of a water-immiscible solvent with boiling point at atmospheric pressure of greater than 110° C. and a density ratio to water of greater than 1.1:1 at 20-25° C. The polyethers... | 09/14/2004 |
| 6736958 | Ion sensing method The present invention allows the determination of trace levels of ionic substances in a sample solution (ions, metal ions, and other electrically charged molecules) by coupling a separation method, such as liquid chromatography, with ion selective electrodes (ISE) p... | 05/18/2004 |
| 6710204 | Decreasing method of N-oxyl compound There is provided a superior decreasing method of an N-oxyl compound contained in an easily polymerizable material, according to which the N-oxyl compound contained in an easily polymerizable material can be sufficiently decreased and loss of the easily polymerizabl... | 03/23/2004 |
| 6642350 | Method of purifying bishydroxyalkyl terephthalate A container made of, e.g., polyethylene terephthalate is pulverized and decomposed in the presence of a catalyst by the use of a solvent such as an alcohol or glycol to obtain crude bishydroxyalkyl terephthalate. This crude bishydroxyalkyl terephthalate i... | 11/04/2003 |
| 6613895 | System and methods for the rapid isolation of nucleic acids The present invention contemplates a system for rapidly isolating nucleic acids. The system comprises an insoluble silica matrix and a buffered aqueous salt solution containing salt at a concentration of at least 3 molar and a buffering agent at a concent... | 09/02/2003 |
| 6562238 | Method and apparatus for controlling counter current In a multistage counter current wash operation wherein an original solvent contained in a cake of polymeric material is displaced with a wash solvent which enters the final stage and progresses forwardly a mathematical model of the counter current wash op... | 05/13/2003 |
| 6352644 | Method of manipulating the chemical properties of water to improve the effectiveness of a desired process The method of the present invention is adapted to manipulate the chemical properties of water in order to improve the effectiveness of a desired process. The method involves heating the water in the vessel to subcritical temperatures between 100° to 374Â... | 03/05/2002 |
| 6264623 | Extracorporeal affinity adsorption methods for the treatment of atherosclerosis, cancer, degenerative and autoimmune disease Extracorporeal affinity adsorption treatments which are aimed at the substantial removal of two or more compounds that are etiological in the pathogenesis of diseases in man provide effective therapeutic intervention means for these diseases. The methods ... | 07/24/2001 |
| 6106773 | Pathogen inactivating compositions for disinfecting biological fluids The present invention is directed to pathogen inactivating compositions that can be used to disinfect various biological fluids, such as blood, blood fractions, and the like. The compositions are suitable for disinfecting biological fluids containing valu... | 08/22/2000 |
| 6101818 | Process for separating water from chemical mixtures A method for separating water from a chemical mixture is provided. In the process of the invention, water is separated from a chemical mixture by contacting the chemical mixture with a water-soluble polymer.... | 08/15/2000 |
| 6043405 | Formulation for neutralization of formaldehyde and method of using and disposing of the same A method and treatment composition for neutralizing formaldehdye. The treatment composition contains polyethylenimine, urea and an acid having a pH of less than 6. Treatment of formaldehyde solutions with the treatment composition results in a suspension ... | 03/28/2000 |
| 6001256 | Method of manipulating the chemical properties of water to improve the effectiveness of a desired chemical process The method of the present invention is adapted to manipulate the chemical properties of water in order to improve the effectiveness of a desired chemical process. The method involves heating the water in the vessel to subcritical temperatures between 100Â... | 12/14/1999 |
| 5980749 | Inclusion methods for purifying a solvent Disclosed are methods for purifying solvents, by causing contaminants to be included within layers of dispersed layered materials, and then separating the restacked combined contaminant/layered material from the solvent. The methods may be utilized to rem... | 11/09/1999 |
| 5858641 | Disinfectant dye removal from blood and blood fractions using a porous poly(vinyl alcohol-acetal) copolymer A process for removing disinfectant dye such as methylene blue from blood, a liquid blood fraction or other perishable liquid to which disinfectant dye has been added. The process employs a filter of polyvinyl alcohol-acetal copolymer. This material shows... | 01/12/1999 |
| 5846404 | Process for the removal of selenium from selenium-containing aqueous streams A selenium-containing aqueous stream may be used as a quenching water stream and optionally a cutting water stream in a delayed coking process to effectuate the removal of selenium from the selenium-containing aqueous stream resulting in the formation of ... | 12/08/1998 |
| 5674496 | Animal repellent A substance and method for minimizing or eliminating damage to objects caused by animals, especially gnawing and chewing rodents. A wide variety of objects and items can be protected by the practice of the invention. Methods are disclosed for extracting t... | 10/07/1997 |
| 5658462 | Process for recovering protein, fatty and water components from a float material produced by a waste water treatment system A process for recovering protein, fatty and water components from a float material produced by a waste water treatment system, wherein the protein and fatty components can be further processed for inclusion in various products, such as animal feed. The re... | 08/19/1997 |
| 5635349 | High-throughput screening assay for inhibitors of nucleic acid polymerases The invention provides promoter specific and promoter non-specific screening assays for identifying an inhibitor of a pathogenic nucleic acid polymerase activity, e.g. an RNA polymerase derived from a pathogenic infectious organism such as a bacterium, pr... | 06/03/1997 |
| 5521164 | Method for the preparation and purification of a mixture of glycosphingolipids free from contamination by non-conventional viruses The process of the invention relates to a process for the preparation of a ganglioside mixture, free from contaminants associated with non-conventional, life-threatening viruses, without altering the biological and pharmacological characteristics of the m... | 05/28/1996 |
| 5512176 | Desalination process Polyurethane polymers useful as hydrogels wherein the polyol is a specific polyol of block copolymers and a method for desalination of water.... | 04/30/1996 |
| 5317071 | Aldehyde treatment system A method of converting a toxic composition containing an aldehyde to a composition which is substantially non-toxic. The aldehyde is reacted with a compound having protic oxygen or nitrogen atoms and a polyimine or polyimine derivative to absorb or swell ... | 05/31/1994 |
| 5174966 | Laboratory device and method for treating rock samples A laboratory device and method are adapted to subject a same rock sample to successive liquid treatments without any intermediary handling of the sample. The device combines a chamber comprising a first part fitted with an inlet for introducing a rock sam... | 12/29/1992 |
| 5147646 | Hydrogel containing envelopes An envelope having flexible water-permeable or porous walls contains a quantity of particulate water-insoluble hydrogel. The quantity of hydrogel in the envelope is such that, when the hydrogel is fully swollen at 20° C., its volume is at least 66%, pref... | 09/15/1992 |
| 5099079 | Process for separating acid from nitro substituted aromatics using a molten nitrate salt Described herein is a process for separating an acid impurity from a solution containing acid and a nitro substituted aromatic compound by contacting the solution with at least one molten nitrate salt.... | 03/24/1992 |
| 5049256 | Recovery of hydrocarbons from acid sludge Hydrocarbons are recovered from acid sludge by mixing the sludge with methyl ethyl ketone and base. A hydrocarbon-rich methyl ethyl ketone stream and a solids-containing stream are separated from the mixture, and a hydrocarbon stream is separated from the... | 09/17/1991 |
| 4747948 | Parallel plate extractor system and method for using same An improved extraction apparatus comprises (a) an elongated trough-like vessel; (b) first and second inlets for introducing relatively heavy and light materials, respectively, into the vessel; (c) first and second outlets for removing relatively light and... | 05/31/1988 |
| 4705635 | Process for enriching and separating oxides of heavy hydrogen isotopes from acid, aqueous solutions or other aqueous streams A process for the enrichment and separation of oxides of heavy hydrogen isotopes from acid, aqueous solutions or other aqueous streams employs macrocyclic aminopolyether (APE) and organic cation exchange agents. The aqueous solution or the aqueous stream ... | 11/10/1987 |
| 4592779 | Method for recovering precious metals from precious metal-bearing materials such as ore and tailings A method for recovering precious metals such as gold and silver from precious metal-bearing materials that include other solids comprises treating the precious metal-bearing materials with an aqueous, basic solution having a pH in the range of about 12 to... | 06/03/1986 |
| 4585548 | Recovery of metal values from mineral ores by incorporation in coal-oil agglomerates Gold ore, or any other mineral treated to have a lyophilic surface, (e.g. chalcopyrites), is ground into a slurry in crusher (1) powdered coal and oil are added at location (2), and the mix is conveyed to a contact zone (3), where any micro-agglomerates f... | 04/29/1986 |
| 4519914 | Method for treating swimming pool water For water treatment in swimming pools, cooling towers, hot tubs, and other systems it is desired to feed various chemicals in small quantities but at optimum rates into the system. In several embodiments of the invention the water is recirculated through ... | 05/28/1985 |
| 4477353 | Method of reclaiming water and coal from coal treatment underflow by two-stage separation of solids Both water and carbonaceous material are reclaimed from an aqueous slurry of particles of coal that contains both carbonaceous and non-carbonaceous materials, the slurry being comprised of at least 60 percent water by weight. Preferably, the geometric mea... | 10/16/1984 |
