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| Number | Title | Issue Date |
| 8146752 | Water purification system and method A polishing cartridge in a water purification system for final purification of water for distribution to a point of use. The system includes a closed water recirculation loop supplied at one point by a water inlet with water to be purified, and having at least one o... | 04/03/2012 |
| 8056733 | Structures that inhibit microbial growth Structures treated with a microbiological interception enhancing agent comprising of a water-soluble cationic material having a counter ion associated therewith at specific sites on the cationic material, in combination with a biologically active metal salt, wherein... | 11/15/2011 |
| 8042696 | Contaminant-reactive geocomposite mat and method of manufacture and use Reactive geocomposite mats, and their method of manufacture, for treating contaminants in soil or water that allow the passage of essentially non-contaminated water therethrough. The geocomposite mat includes a pre-formed woven or non-woven geotextile, having a thic... | 10/25/2011 |
| 8025160 | Sulfur-impregnated organoclay mercury and/or arsenic ion removal media The use of a sulfur-impregnated organoclay provides a mercury or arsenic removal media having increased reactivity, stability, and mercury removal ability. The Hg/As removal media described herein is prepared by impregnating an organophilic clay with elemental (free... | 09/27/2011 |
| 7998344 | Methods and apparatuses for filtering water from oil and gas wells The invention relates to a method and apparatus for filtering contaminated water from an oil or gas well. ... | 08/16/2011 |
| 7870965 | Geotextile composite for filtration of contaminated liquids and sediments Geotextile composite configured to filter liquids The geotextile composites include a pre-filter layer, a post-filter layer and at least two intermediate filter layers disposed between the pre-filter layer and the post-filter layer. At least one fibrous web that inc... | 01/18/2011 |
| 7854330 | Contaminant-reactive geocomposite mat and method of manufacture and use Reactive geocomposite mats, and their method of manufacture, for treating contaminants in sediment, soil or water that allow the passage of essentially non-contaminated water therethrough. The geocomposite mat includes a pre-formed woven or non-woven geotextile, tha... | 12/21/2010 |
| 7850012 | Silane-treated silica filter media The present invention provides methods for separating one or more components of interest from a sample containing particulates and soluble materials. The method comprises the steps of: (a) filtering a sample through silica filter media whose surface silanol groups h... | 12/14/2010 |
| 7673757 | Adsorbent filter media for removal of biological contaminants in process liquids Adsorbent filter media particularly suited for removal of biological contaminants in process liquids. A porous fixed bed of adsorbent material is formed, using only a granular adsorbent and a water-insoluble thermoplastic binder. The resulting composite filter allow... | 03/09/2010 |
| 7601262 | Sub-micron filter Aluminum hydroxide fibers approximately 2 nanometers in diameter and with surface areas ranging from 200 to 650 m2/g have been found to be highly electropositive. When dispersed in water they are able to attach to and retain electronegative particles. Whe... | 10/13/2009 |
| 7575682 | Contaminant-reactive geocomposite mat and method of manufacture and use Reactive geocomposite mats, and their method of manufacture, for treating contaminants in sediment, soil or water that allow the passage of essentially non-contaminated water therethrough. The geocomposite mat includes a pre-formed woven or non-woven geotextile, tha... | 08/18/2009 |
| 7507340 | Ion processing element with composite media An ion processing element employing composite media disposed in a porous substrate, for facilitating removal of selected chemical species from a fluid stream. The ion processing element includes a porous fibrous glass substrate impregnated by composite media having ... | 03/24/2009 |
| 7488418 | Methods and apparatuses for filtering water The invention relates to a method and apparatus for filtering or purifying water. ... | 02/10/2009 |
| 7476316 | Molecularly imprinted polymers (MIPS) for the selective removal of inorganic contaminants from liquids A method of creating a cationic molecularly imprinted polymer bead that can bind inorganic target compounds is disclosed and described. The cationic molecularly imprinted polymer bead can be formed by complexing a target compound with a cationic ligand, polymerizing... | 01/13/2009 |
| 7442293 | Oil/water separation apparatus for oil-containing mixture Oil adsorbent layers 4 and packed layers 5 are alternately laminated inside a treatment vessel 2, the oil adsorbent layers 4 comprise ten laminated flat sheets 4a composed of polypropylene, and gelled aluminum hydroxide 1... | 10/28/2008 |
| 7442299 | Ion exchange porous resins for solid phase extraction and chromatography Embodiments of the present invention are directed to porous resins for solid phase extractions. The resins feature at least one hydrophobic component, at least one hydrophilic component and at least one ion exchange functional group. The resins exhibit superior wett... | 10/28/2008 |
| 7438806 | Affinity matrices with enhanced visibility for molecular pull-down and immunoprecipitation applications An affinity matrix for use in affinity based molecular pull down and immunoprecipitation procedures. The affinity matrix comprises a polymeric support, a dye attached to a fraction of the polymeric support to enable optical detection of the polymeric support, and an... | 10/21/2008 |
| 7427352 | Fluid purifier having magnetic field generation A fluid purifier includes a filter having a chamber of reduced cross section formed either between an inner wall and an outer wall or within the inner wall. A ceramic layer of granular ceramic particles and at least a pair of magnetic layers each comprising an annul... | 09/23/2008 |
| 7419060 | Integrated fuel container and impurity removal cartridge A fuel supply for a fuel cell including a fuel container and an impurity removal cartridge connected to the fuel container, where both the fuel container and the impurity removal cartridge are integrated into a single unit. ... | 09/02/2008 |
| 7419593 | Bioremediation mat and method of manufacture and use Bioremediation geocomposite articles, and their method of manufacture, for treating (digesting) contaminats in soil or water. The bioremediating geocomposite mat includes a woven or non-woven geotexile, having a thickness of about 6 mm to about 200 mm. In the prefer... | 09/02/2008 |
| 7410572 | Combination particulate and acid-neutralizing filter The present invention provides a filter apparatus for use in removing impurities and acids contained in a fluid that includes a particulate filter and an acid-neutralizing filter. Preferably, the particulate filter and the acid-neutralizing filter are positioned wit... | 08/12/2008 |
| 7410525 | Mixed matrix membranes incorporating microporous polymers as fillers The present invention is for a polymer/polymer mixed matrix membrane and the use of such membranes in gas separation applications. More specifically, the invention involves the preparation of polymer/polymer mixed matrix membranes incorporating soluble polymers of i... | 08/12/2008 |
| 7410065 | Membrane for the separation of material mixtures and method for production thereof The invention relates to a membrane for the separation of material mixtures by the principle of vapor permeation or pervaporation, in particular for the dewatering of organic solvents, comprising at least one support layer and at least one material-selective separat... | 08/12/2008 |
| 7407576 | Separating agent for an optical enantiomeric isomer The present invention is to provide a method of producing a separating agent for an enantiomeric isomer having a high optical resolution power together with sufficient solvent resistance. That is, a method of producing a separating agent for an enantiomeric isomer c... | 08/05/2008 |
| 7402243 | Organosilanes and substrate bonded with same The present invention provides novel silicon compounds, methods for making these novel silicon compounds, compositions comprising these novel silicon compounds attached to substrates, methods for attaching the novel silicon compounds to substrates and methods for us... | 07/22/2008 |
| 7399409 | Packing material for separation of optical isomer and method of separating optical isomer with the same The objectives of this invention are to provide a filler for separating optical isomers, capable of efficiently carrying out optical resolution of optical isomer mixtures, and to provide a process for separating optical isomers by a simulated moving bed chromatograp... | 07/15/2008 |
| 7396461 | Filter cartridge for gravity-fed water treatment device A filter cartridge for use in gravity-fed water treatment systems wherein filter elements include a dome-shaped hydrophilic porous particulate carbon powder block filter in a polymeric binder. The filter has a closed upper end and an open lower end with sidewalls ex... | 07/08/2008 |
| 7396467 | Method of preparing a chromatography matrix The present invention relates to a method of preparing a porous cross-linked polysaccharide chromatography matrix, which comprises to provide an aqueous solution of a gellable polysaccharide, wherein part of the hydroxyl groups are substituted with groups which are ... | 07/08/2008 |
| 7396468 | Methods and system for protein separation The present disclosure relates to a system and method for membrane protein separation including: fractionating a membrane sample on a reversed-phase superficially porous stationary phase at a temperature of greater than or equal to about 40° C. to recover a protein... | 07/08/2008 |
| 7393453 | Method for analysis of perchlorate A method for analyzing the content of perchlorate in a sample matrix comprising the steps of extracting the sample matrix and applying it to a reverse phase column, followed by elution with a mobile phase. The reverse phase column optionally has a protein coating de... | 07/01/2008 |
| 7390403 | Prefilter system for biological systems The present invention is to a prefilter for purification systems such as affinity chromatography columns and ultrafiltration systems. The prefilter, positioned upstream of the system inlet, reduces the presence of non-specific binding (NSB) species that enter the sy... | 06/24/2008 |
| 7384546 | Multi-layered macromolecules and methods for their use Multi-layered macromolecules wherein the layers are covalently bonded together and wherein the macromolecules are covalently bonded to solid particulate substrates, methods for the preparation of such compositions, and methods for their uses in a multitude of end us... | 06/10/2008 |
| 7374673 | Channeled polymer fibers as stationary/support phases for chemical separation by liquid chromatography and for waste stream clean-up Polymer fibers having a novel cross-sectional geometry are used as stationary phase materials for liquid chromatography separations. Fibers of 20 to 50 micrometer diameters have surface-channel structures extending their entire lengths. Bundles of fibers having this... | 05/20/2008 |
| 7374680 | Filtration matrix The filtration device of the present invention relies on materials and methodologies that achieve the formation of a structural matrix that may later accommodate the addition of other adsorbent materials as opposed to merely binding adsorbent materials together thro... | 05/20/2008 |
| 7368056 | Production of potable liquids Water-desalination and/or water purification devices. Alternatively, devices that are implantable in animal bodies, possibly configured as self-inflating spinal disc prostheses. The devices include specified types of water-absorbing solute encapsulated by non-porous... | 05/06/2008 |
| 7364656 | Triazine-based detoxification agents and their use An affinity ligand-matrix conjugate comprises the matrix and conjugated thereto by the group Z, a ligand having general formula (I): wherein one X is N and the other X is N, CCL or CCn; A1 and A2 are e... | 04/29/2008 |
| 7357864 | Microfluidic device The object of the present invention is to provide a production process of a microfluidic device in which a porous resin layer, which is capable of optimally fixing a large amount of enzyme, antigen or other protein or catalyst on the inner surface of a minute channe... | 04/15/2008 |
| 7357868 | Nanocrystal-containing filtration media The invention relates to filtration media having nanocrystals of metal oxides, encapsulated in or impregnated into a binder matrix, which binds together particles of activated carbon. The filtration media can be compressed into a filtration block, has low pressure d... | 04/15/2008 |
| 7351335 | Filter module A filter module provided with a housing (3) having an inlet (6) for a liquid to be filtered and an outlet (10) for filtered liquid, with a first filter element (7-9, 12) accommodated in the housing (3), in the form of a poro... | 04/01/2008 |
| 7347946 | Method for inhibiting microbial growth in liquid nutrients A method for inhibiting growth of microbes in a liquid having a pH equal to or greater than about 2.5 by using a filter bed assembly or filter for filtering the liquid having a metal-ion sequestering agent for removing designated metal ion from the liquid. The liqui... | 03/25/2008 |