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| Number | Title | Issue Date |
| 7556739 | Underwater processing of fluid streams A method of treating a fluid stream underwater comprising integrally attaching a skid to a fluid stream treating vessel so that the fluid stream treating vessel can be disposed on an underwater floor in a position such that an opening in said vessel is at a highest ... | 07/07/2009 |
| 7438129 | Water treatment method for heavy oil production using calcium sulfate seed slurry evaporation A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. Feedwater is then acidified and steam stripped to remove alkalinity and dissolved non-condensable ga... | 10/21/2008 |
| 7428926 | Water treatment method for heavy oil production A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. Pretreated produced water is then fed to an evaporator. Up to 95% or more of the pretreated produced... | 09/30/2008 |
| 7413661 | Method for purifying semiconductor gases This invention is directed a method for producing an ultra-high purity semiconductor gas such as ammonia gas. The method includes the steps of directing an ammonia fluid having a liquid phase moisture content that is less than about 500 parts per million through an ... | 08/19/2008 |
| 7404898 | Method and installation for the production of lime water from deionised water A method of producing lime water comprising deionising dilution water by membrane filtration, distillation or an ion exchange resin and adding silicate ions to the deionised water. Thereafter, the deionised water treated with the silicate ions is mixed with milk of ... | 07/29/2008 |
| 7353634 | Methods of utilizing waste waters produced by water purification processing The invention relates to disposing of unwanted waste waters produced from purifying water. The methods of the present invention include applying waste water containing 0.15% by weight of the salts of Na, K, Ca, Mg, Fe, Cl, SO4, and CO3 and mixt... | 04/08/2008 |
| 7351330 | Iron and hydrogen sulfide removal apparatus An automated system controls operation of a filtration system. The filtration system includes an aeration tank and a filtration tank. The system includes a pressure sensor, an air pump, a bleed passage, and a pressure control. The pressure sensor measures a pressure... | 04/01/2008 |
| 7326349 | Method and apparatus for purifying alcoholic liquors After passing alcoholic liquors 20 through an HSO3 type strongly basic anion exchange resin layer 14, or after adding an HSO3 salt to alcoholic liquors; the alcoholic liquors are passed through a mixed bed layer 18 containi... | 02/05/2008 |
| 7326346 | High capacity regenerable sorbent for removal of arsenic and other toxic ions from drinking water The present invention is directed to a sorbent comprising a disordered polyvalent metal oxide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered silicate suc... | 02/05/2008 |
| 7314547 | Fountain solution recycling system for commercial printers A method of and apparatus for extending the life of fountain solutions used in commercial printing presses comprises withdrawing fountain solution from the dampener recirculation system of a printing press and directing the withdrawn fountain solution through a sedi... | 01/01/2008 |
| 7306738 | Method of deionizing solution yielded by polyester decomposition with ethylene glycol There is provided a method for deionizing a decomposition produced solution resulting from decomposition of a polyester by ethylene glycol. The ester interchange reaction and hydrolysis reaction along with cation removing treatment of a decomposition product resulti... | 12/11/2007 |
| 7303683 | Microorganism-removing filter medium having high isoelectric material and low melt index binder A filter medium capable of removing microorganisms from a fluid such as water. The filter medium includes particles of activated carbon, particles of a substantially insoluble inorganic material having an isoelectric point greater than the fluid being filtered. A lo... | 12/04/2007 |
| 7300743 | Radiation durable organic compounds with high transparency in the vacuum ultraviolet, and method for preparing This invention concerns radiation durable organic compositions which are well-suited for use in 157 nm lithography by virtue of their high transparency and excellent radiation durability, and to a process for the preparation thereof. ... | 11/27/2007 |
| 7300585 | Method of treatment of effluent stream A method for treating an effluent stream containing material which it is desired to remove from the effluent stream comprises treating the effluent stream with a solution of an acid and a first polymer to reduce the pH of the thus-treated stream to a range of about ... | 11/27/2007 |
| 7291565 | Method and system for treating a substrate with a high pressure fluid using fluorosilicic acid A method and system is described for treating a substrate with a high pressure fluid, such as carbon dioxide in a supercritical state. A process chemistry is introduced to the high pressure fluid for treating the substrate surface. The process chemistry comprises fl... | 11/06/2007 |
| 7291277 | Method and device for cleaning the fountain solution of a printing press A method for cleaning the fountain solution of a printing press with an automatically emptying separator (16), separates the dirt particles and oil residues from fountain solution and supplies them, as a mixture of dirt and fountain solution, to a dirt and fo... | 11/06/2007 |
| 7279076 | Apparatus and method for handling easily polymerizable substance, apparatus for extracting liquid from apparatus under reduced pressure, and process for producing easily polymerizable substance In an apparatus capable of distilling and refining an easily polymerizable substance, piping is performed so that when a strainer in action is switched to a backup strainer, the strainer can be switched after removing air in the backup strainer to replace air in the... | 10/09/2007 |
| 7276139 | Method for concentrating solution An low concentration dope is fed through a nozzle into a concentrating apparatus, and flash evaporation of the low concentration dope is performed at an end of the nozzle. The low concentration dope is concentrated thereby to an concentrating dope which is contained... | 10/02/2007 |
| 7272942 | Method and system for purifying exhaust gas The invention relates to a method and system for purifying exhaust gas, especially a solvent-containing exhaust gas from refrigerator recycling, wherein the dried, pressurized exhaust gas is cryogenically condensed, the condensed components are separated from the re... | 09/25/2007 |
| 7273555 | Process for continuous ion exchange A process for continuous countercurrent ion exchange comprises piping a contaminated feed stream into a closed loop ion exchange contactor. The contactor is an ion exchange bed that has three or more reaction segments. The segments are comprised of at least an adsor... | 09/25/2007 |
| 7270941 | Method of passivating of low dielectric materials in wafer processing A method of passivating silicon-oxide based low-k materials using a supercritical carbon dioxide passivating solution comprising a silylating agent is disclosed. The silylating agent is preferably an organosilicon compound comprising organo-groups with five carbon a... | 09/18/2007 |
| 7267898 | Freeze prevention of a fuel cell power plant A fuel cell power plant comprises a water circulation passage (5) which circulates the cooling water in a fuel cell stack (4). Sodium hydroxide which lowers the melting point of water is mixed with water in the water circulation passage (5) to p... | 09/11/2007 |
| 7264735 | Method for producing drinking water The present invention relates to a method for producing drinking water having a reduced cluster width and being capable of emitting FIR (Far Infrared Rays) energy by using a solution derived by chemical treatment of a charge generating material. ... | 09/04/2007 |
| 7247240 | Method for treating waste water The invention provides a method for treating waste water wherein organic and inorganic substances in waste water can be treated at high levels regardless of the concentration, and a unit itself can be made compact. The method of the invention is a method for treatin... | 07/24/2007 |
| 7182841 | Purification of solvents used for the purification of alkylene oxide This invention concerns a process for removing carbonyl-containing impurities from impure extractive distillation solvent such as a glycol, comprising: contacting the impure extractive distillation solvent with an acidic ion exchange resin. The purified extractive d... | 02/27/2007 |
| 7183235 | High capacity regenerable sorbent for removing arsenic and other toxic ions from drinking water The present invention is directed to a sorbent comprising a disordered polyvalent metal oxide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered silicate suc... | 02/27/2007 |
| 7150320 | Water treatment method for heavy oil production A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. If necessary, the pH is then adjusted, normally downward, releasing at least some carbonate alkalini... | 12/19/2006 |
| 7138364 | Cleaning gas and etching gas A chamber-cleaning gas and an etching gas used for a silicon-containing film according to the present invention comprise a perfluoro cyclic ether having 2 to 4 carbon atoms which are ether-linked with carbon atoms. The chamber-cleaning gas and the etching gas hardly... | 11/21/2006 |
| 7112282 | Fountain solution recycling system for commercial printers A method of and apparatus for extending the life of fountain solutions used in commercial printing presses comprises withdrawing fountain solution from the dampener recirculation system of a printing press and directing the withdrawn fountain solution through a sedi... | 09/26/2006 |
| 7108771 | Method for removal of impurities in cyclic siloxanes useful as precursors for low dielectric constant thin films A process for reducing the level(s) of water and/or other impurities from cyclosiloxanes by either azeotropic distillation, or by contacting the cyclosiloxane compositions with an adsorbent bed material. The purified cyclosiloxane material is useful for forming low-... | 09/19/2006 |
| 7108781 | Enhanced air and water purification using continuous breakpoint halogenation with free oxygen radicals Continuous breakpoint halogenation with hydroxyl free radical species is used to increase the rate of sanitization a water system and maintain a high rate of oxidation in the bulk water of the pool, spas, and other water systems despite the presence of accumulated d... | 09/19/2006 |
| 7097763 | Ion exchange filter apparatus An ion exchange filter apparatus to reduce ions contained in a liquid medium used in a fuel cell system is equipped with an ion exchange filter 6 to receive an ion exchange resin 38. The ion exchange filter 6 includes a flow passage 27 to... | 08/29/2006 |
| 7087159 | Fountain solution recycling system for commercial printers A method of and apparatus for extending the life of fountain solutions used in commercial printing presses comprises withdrawing fountain solution from the dampener recirculation system of a printing press and directing the withdrawn fountain solution through a sedi... | 08/08/2006 |
| 7077201 | Water treatment method for heavy oil production An evaporation based method of treating produced water from heavy oil production. A produced water from heavy oil recovery operations treated by first removing oil and grease to a desired level, preferably to about twenty parts per million, or less. If necessary, th... | 07/18/2006 |
| 7078011 | Method of storing and supplying hydrogen to a pipeline A method of storing and supplying a gaseous hydrogen product to a pipeline under a product purity specification in which a hydrogen stream made up of gaseous hydrogen is compressed to form a compressed hydrogen stream and introduced into a salt cavern for storage. A... | 07/18/2006 |
| 7052612 | Skimmer and filter A skimmer and filter unit for use with a body of water. A tank portion of the unit defines an interior skimmer chamber, one or more ultraviolet light chambers, filter chamber, and pump chamber. Water is received through a pivoting weir door of a skimmer faceplate as... | 05/30/2006 |
| 7048781 | Chemically-impregnated silicate agents for mercury control The present invention is directed to a contaminant removal agent comprising a polyvalent metal sulfide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered sil... | 05/23/2006 |
| 7049922 | Method and apparatus for decreasing gassing and decay of insulating oil in transformers The invention deals with increasing the quality of insulating mineral oil in transformers, by providing an isolating layer of flowing nitrogen over the oil's surface to keep ambient air from combining or absorbing with or in the oil, also providing a kidney or filte... | 05/23/2006 |
| 7044662 | Developing photoresist with supercritical fluid and developer An apparatus for developing a polymeric film without the need for a water rinse step is disclosed. An object having a surface supporting a polymeric film is placed onto a support region within a pressure chamber of the apparatus. A fluid and developer is introduced ... | 05/16/2006 |
| 7037616 | Fuel cell system having drain for condensed water stored in reforming reactor A fuel cell system having a reforming reactor is disclosed, in which condensed water generated in the reforming reactor is drained during the warming-up of the system, so as to quickly complete the warming-up. The system comprises a fuel cell for generating power by... | 05/02/2006 |
