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| Number | Title | Issue Date |
| 7410611 | In-line method and apparatus to prevent fouling of heat exchangers The present invention relates to a method and apparatus for the prevention of fouling of process streams by the application of electric charge on process components. The electric charge may be attractive or repulsive to the foulants, they may be constant or variable... | 08/12/2008 |
| 7364710 | System for decomposing organic compound A system for decomposing a liquid or gaseous organic compound comprises a ultraviolet decomposition unit and an intermediate product treatment apparatus. The ultraviolet decomposition unit decomposes an organic compound contained in polluted liquid or polluted gas b... | 04/29/2008 |
| 7361303 | Medical waste treatment unit A method and apparatus for reducing organic waste. The apparatus comprises a conveyor to move waste to a first chamber for weighing waste and purging oxygen, a second chamber for treating, sterilizing and reducing waste by reverse polymerization, and a third chamber... | 04/22/2008 |
| 7354850 | Directionally controlled growth of nanowhiskers Nanowhiskers are grown in a non-preferential growth direction by regulation of nucleation conditions to inhibit growth in a preferential direction. In a preferred implementation, III-V semiconductor nanowhiskers are grown on an (001) III-V semiconductor substr... | 04/08/2008 |
| 7348288 | Catalyst composition A process comprises passing a contaminated gaseous stream through a photocatalytic stage and, thereafter, through a catalytic stage. ... | 03/25/2008 |
| 7309425 | Apparatus for the preparation of arsenic free water The present invention relates to a process for the preparation of arsenic free water and an apparatus therefor. The present invention also relates to a porous ceramic useful for pressure filtration in order to produce arsenic free water. The present invention partic... | 12/18/2007 |
| 7255831 | Tungsten oxide/titanium dioxide photocatalyst for improving indoor air quality A tungsten oxide/titanium dioxide photocatalyst coating oxidizes contaminants in the air that adsorb onto the coating into water, carbon dioxide, and other substances. The tungsten oxide forms a monolayer on the titanium dioxide. When photons of the ultraviolet ligh... | 08/14/2007 |
| 7220391 | UV photochemical option for closed cycle decomposition of hydrogen sulfide Methods and systems for separating hydrogen and sulfur from hydrogen sulfide(H2S) gas. Hydrogen sulfide(H2S) gas is passed into a scrubber and filtration unit with polysulfide solution. Interaction frees elemental sulfur which is filtered, exce... | 05/22/2007 |
| 7194924 | System and method for biohazard detection using compression The present invention includes a system and method for detecting contaminated objects, for example mail pieces, through use of a pinching device that compresses the objects, thereby possibly releasing potential contaminant-containing particles into the air in a clos... | 03/27/2007 |
| 7189978 | Air sterilizing system A system for sterilizing air includes an air duct for flowing the air therethrough. A first electron beam generator is positioned relative to the duct for irradiating the air flowing therethrough with a first electron beam. The first electron beam for disabling biol... | 03/13/2007 |
| 7163615 | Method of treating substance to be degraded and its apparatus There is provided a method of treating a substance to be degraded comprising the steps of: degrading the substance to produce a degraded product; contacting the product obtained in the degrading step with a liquid; and entrapping a component of the product not trapp... | 01/16/2007 |
| 7163665 | Apparatus for decomposing gaseous aliphatic hydrocarbon halide compounds A method for decomposing a gaseous aliphatic hydrocarbon halide compound more simply is provided. The method includes the steps of mixing the gaseous aliphatic hydrocarbon halide compound and a chlorine gas-containing gas and emitting light to a mixture gas of the g... | 01/16/2007 |
| 7160566 | Food surface sanitation tunnel This invention is a modular, adjustable, easy to maintain, portable or fixed food sanitation tunnel, comprising an enclosing means for subjecting food to sanitizers including UV light, ozone, hydroperoxides, superoxides and hydroxyl radicals, and a method for using ... | 01/09/2007 |
| 7150865 | Method for selective enrichment of carbon nanotubes A method for treating carbon nanotubes with microwave energy to selective remove metallic-type carbon nanotubes is provided. A sample containing carbon nanotubes is positioned in a microwave cavity at a location corresponding to a maximum in the electric field compo... | 12/19/2006 |
| RE39313 | Procedure and filter device for removal and/or destruction of organic substances in contaminated air A procedure and a filter device (1) serving the purpose of removing and/or destruction organic substances in contaminated air. The filter device comprises at least one ventilator (12) for sending an air stream through a first chamber (14) with a... | 10/03/2006 |
| 7108837 | Polluted soil remediation apparatus and pollutant degrading apparatus A polluted soil remediation apparatus comprising a treatment tank in which pollutants degradable with light irradiation in the presence of chlorine is extracted as a gas containing the pollutants from polluted soil and a mixture of the gas containing the pollutants ... | 09/19/2006 |
| 7109504 | Extreme ultraviolet illumination source According to a first embodiment of the invention, a dual cathode electrode for generating EUV light is disclosed. The dual cathode electrode may include a first outer cathode, a second inner cathode, and an anode disposed between the inner and outer cathodes. The du... | 09/19/2006 |
| 7060233 | Process for the simultaneous removal of sulfur and mercury A process for removing hydrogen sulfide, other sulfur-containing compounds and/or sulfur and mercury from a gas stream contaminated with mercury, hydrogen sulfide or both. The method comprises the step of selective oxidation of hydrogen sulfide (H2S) in a... | 06/13/2006 |
| 7057703 | Exposure apparatus An exposure apparatus which exposes a substrate to a pattern. The apparatus includes a channel which causes pure water to flow as a coolant, a temperature adjustment unit which adjusts a temperature of the pure water flowing in the channel, and a coolant generation ... | 06/06/2006 |
| 7056454 | Ion generator and its manufacturing method An ion generator with increased generation of negative ions and its method of manufacture are disclosed. For an ion generator of the present invention, a titanium oxide powder is added to an ion generator that generates negative ions. ... | 06/06/2006 |
| 7038759 | Exposure apparatus An exposure apparatus which exposes a substrate to a pattern. The apparatus includes a channel which causes pure water to flow as a coolant, a temperature adjustment unit which adjusts a temperature of the pure water flowing in the channel, and a coolant generation ... | 05/02/2006 |
| 7034198 | Method for decomposing plastic A conventional method of pyrolytically decomposing plastic to make low-molecular compounds is poor in efficiency of use of energy due to high heating temperatures (at least 600° C. and 800° C. at maximum). The invention provides that a functional powder is ... | 04/25/2006 |
| 7033419 | Method for high temperature mercury capture from gas streams A process to facilitate mercury extraction from high temperature flue/fuel gas via the use of metal sorbents which capture mercury at ambient and high temperatures. The spent sorbents can be regenerated after exposure to mercury. The metal sorbents can be used as pu... | 04/25/2006 |
| 7018514 | Method and apparatus for processing substances to be decomposed A method for processing substances to be degraded is provided. The method includes a decomposing step in which a mixed gas containing chlorine and the substances to be degraded is irradiated with light to decompose the substances to be degraded, a contact step in wh... | 03/28/2006 |
| 7014737 | Method of purifying nanotubes and nanofibers using electromagnetic radiation Disclosed are methods of purifying mixtures comprising nanofibers and/or nanotubes and residual catalyst particles that are covered by outer layers of the nanotube or nanofiber material. The mixtures are exposed to electromagnetic radiation, which induces localized ... | 03/21/2006 |
| 7009829 | System, apparatus, and method for controlling lamp operation when subject to thermal cycling A system, apparatus, and method for preventing thermal cycling of a ballast coupled to one or more lamps. A monitor circuit is provided to monitor for activation of the ballast's thermal protection mechanism. Such monitoring may include monitoring of the ballast's t... | 03/07/2006 |
| 6972056 | Carbon nanotube purification A method for cleaning or otherwise removing amorphous carbon and other residues that arise in growth of a carbon nanotube (CNT) array. The CNT array is exposed to a plurality of hydroxyls or hydrogen, produced from a selected vapor or liquid source such as H2 | 12/06/2005 |
| 6955791 | Environmental air sterilization system The present invention is a high volume, wall-mountable air sanitation apparatus for disinfecting and removing VOCs from air with high energy UV light and ozone. The apparatus has a powerful fan and an elongated UV light source and target for use with the movement of... | 10/18/2005 |
| 6949877 | Electron emitter including carbon nanotubes and its application in gas discharge devices An electron emitter includes a coating layer of a mixture of carbon nanotubes and alkaline-earth metal oxides on an electrically conducting structure. The preferred carbon nanotubes are those having a diameter less than about 200 nm. A substantial portion of electro... | 09/27/2005 |
| 6943115 | Semiconductor device and method of manufacture thereof A method is provided for manufacturing a semiconductor device having a multilayer wiring structure in which at least one insulating film is formed with a set of conducting portions which are electrically connected to each other to have a surface area of no less than... | 09/13/2005 |
| 6929750 | Device and method for separation The present invention provides a device and a method for separating particles from fluids using ultrasound, laminar flow, and stationary wave effects comprising a micro-technology channel system with an integrated branching point or branching fork, and a single ultr... | 08/16/2005 |
| 6916418 | Assembly and method for purifying water at a point of use and apparatus and method for testing same A cavitation assembly for purification of drinking water includes a generally cylindrically-shaped open-ended tube for flow of water therethrough, the tube comprising a transducer for converting electrical energy to acoustic energy and transmitting ultrasound throug... | 07/12/2005 |
| 6913699 | Process for selectively removing functionalized organic compounds from a liquid medium The present invention is directed to a process and device for selectively removing at least one functionalized organic compound present in a liquid medium. More specifically the present invention is useful for removing functionalized organic compounds, that may accu... | 07/05/2005 |
| 6908559 | Process for treating a solid-liquid mixture A process for treating a solid-liquid mixture by cavitation to decompose at least some contaminant associated with the solid particles, the contaminant either being absorbed into the pores of the solid or onto the surface of the solid particles. The process includes... | 06/21/2005 |
| 6902653 | Apparatus and method for photocatalytic purification and disinfection of fluids An apparatus and method for the photocatalytic conversion of contaminants in a fluid stream. Fluid is directed through a semitransparent packed bed or an open cell, three dimensionally reticulated, fluid permeable, semiconductor unit. Within the unit, a semiconducto... | 06/07/2005 |
| 6843973 | Krypton and xenon recovery system In a process for the recovery of krypton and xenon, an oxygen-enriched stream containing krypton and/or xenon and hydrocarbons is removed from an air separation unit. A substantial portion of the hydrocarbons, especially methane, ethane, and acetylene, is removed fr... | 01/18/2005 |
| 6797127 | Process and apparatus for purification of oxygen-containing gas A method comprising a first step for radiating ultraviolet rays of a short wavelength of 110 nm or longer, but shorter than 200 nm to the gas, for example, an air to be treated to generate ozone, a second step for radiating ultraviolet rays of a medium wavelength of... | 09/28/2004 |
| 6702929 | Purification of 1,1,1,3,3-pentafluorobutane In the synthesis of 1,1,1,3,3-pentafluorobutane (R-365mfc), a mixture of R-365mfc and the impurity 1,1,1,3-tetrafluoro-2-butene (R-1354mzy) is purified and R-1354mzy is removed from the mixture by contacting the mixture with 1-5 mols of chlorine for each ... | 03/09/2004 |
| 6699370 | Process and system for decomposing pollutants In a process for decomposing pollutants by bringing pollutants contained in air into contact with air that contains chlorine, under irradiation by light, at least part of a chlorine-generating solution present in a chlorine generation region is fed to a m... | 03/02/2004 |
| 6695953 | Accelerated methods of oxidizing organic contaminants in aqueous mediums using corona induced reactions and particles therewith Novel accelerated methods involving corona discharge, and preferably pulsed streamer high voltage corona discharge, in combination with an effective amount of suitable particles to break down organic contaminants, such as phenol and phenol red, in aqueous... | 02/24/2004 |
