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| Number | Title | Issue Date |
| 8123048 | Hydrophilic porous membrane and method of forming the same A method for forming a hydrophilic porous membrane includes applying a crosslinked coating to a hydrophobic porous membrane via an in-situ polymerization process. Polar functional groups are introduced into the coating, thereby forming the hydrophilic porous membran... | 02/28/2012 |
| 7987996 | Filter medium, fluid filter, and engine oil filter A filter medium comprises a modified cross-section fiber (A) having a fiber diameter between 40 and 70 μm, an extremely fine fiber (B) having a fiber diameter of more than 5 μm and no more than 10 μm and a modified cross-section fiber (C) having a fiber diameter ... | 08/02/2011 |
| 7922008 | Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles A filter and filter material for providing or treating potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a mixture of a plurality of... | 04/12/2011 |
| 7712613 | Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles A filter and filter material for providing or treating potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a mixture of a plurality of... | 05/11/2010 |
| 7631769 | Fluid control device and method of manufacturing the same A fluid control device has very fine pores with an average diameter not greater than 10 nm and provides a large flux. The fluid control device comprises an anodized alumina film having fine pores and a silicon based micro-porous film having very fine pores and made ... | 12/15/2009 |
| 7578398 | Bacteria growth device, assembly including the same and method associated thereto A bacteria growth device (1) for use with bacteria in a substantially liquid medium, the device (1) comprising at least one strip (5) having a surface area shaped and sized for receiving bacteria present in the substantially liquid medium and fo... | 08/25/2009 |
| 7441665 | Water purification cartridge The water purification cartridge treats water with a halogen liberated from halogenated hydantoinyl resins and polymers, resulting in the safe, complete, and economical purification of non-potable water at low flow rates typically found in gravity feed filtration sy... | 10/28/2008 |
| 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 |
| 7416665 | Pore size controllable filter The pore size controllable filter can separate and remove effectively the suspended solid and eliminate rapidly it captured by the device. The filtering materials (21) are built on the upper filtering material holder (23) and the lower filtering materi... | 08/26/2008 |
| 7407742 | Plasma or serum separator, plasma or serum sampling method, plasma or serum separating method, test carrier and glass fiber Provided are a plasma or serum separator and a plasma or serum sampling method capable of isolating plasma or serum with good efficiency from a small amount of blood without using a centrifuge and without causing leakage of a blood cell component or hemolysis, and i... | 08/05/2008 |
| 7407578 | Liquid filtering instrument and dry type analysis device A liquid filtering instrument 10 according to the present invention achieves filtered liquid by pressure-reduced filtration, and it comprises a filter member 12 in which a liquid filter 15 is accommodated, and a holder member 14 for stock... | 08/05/2008 |
| 7399333 | Filter element and process for producing the same The present invention provides a filter element and a method for producing the same, which do not generate pollution during waste disposal, can be easily produced, improve the pressure loss and reduce the production cost. The filter element and the method for produc... | 07/15/2008 |
| 7361277 | Biological fluid filter and system A filter device (100) comprising a filter (10) for producing a leukocyte-depleted plasma-rich fluid is disclosed. ... | 04/22/2008 |
| 7354546 | Process of preparing continuous filament composed of nano fiber The present invention relates to a process of preparing a continuous filament composed of a nano fiber, wherein nano fibers are prepared by spinning a polymer spinning dope in a spinning dope main tank (20) onto the surface of water or organic solvent (4 | 04/08/2008 |
| 7344034 | Heatsealable filter materials Described are a filter material which contains heatsealable, biodegradable and compostable polymeric fibers and is characterized in that it additionally contains a lubricant in an amount from 0.5 to 5.0% by weight, based on the paper weight of the ready-produced fil... | 03/18/2008 |
| 7344035 | High heat filter fabric and method A fabric is disclosed which is suitable for use in the manufacture of particulate filters for use in high heat environments, together with a method for making the high heat filter fabric. The filter fabric has a sliver knit pile construction, and may be manufactured... | 03/18/2008 |
| 7341623 | Substance mixture and a method for introducing at least one particulate active ingredient component into a liquid aqueous system A mixture of substances is designated for introduction into a liquid aqueous system and comprises at least one extremely finely divided active substance component that is designated for subsequent dissolution or dispersion in the liquid aqueous system. The mixture o... | 03/11/2008 |
| 7316323 | Filters having improved permeability and virus removal capabilities A filter block having a permeability of greater than about 3.0*10−9 cm2, and a F-VLR of greater than about 99% is provided. The filter block may be made of filter particles having a median particle size of less than about 50 microns and havin... | 01/08/2008 |
| 7316780 | Range separation devices and processes Separation device comprising a feed channel including a shear region, permeate passage(s) extending perpendicular to the direction of the feed flow and a porous medium positioned between the shear region of the feed channel and the permeate passage(s). Separation pr... | 01/08/2008 |
| 7314141 | Folding belt filter A belt filter for effecting separation of liquid from solids where, at the collection zone, a filter belt or belts is changed shape so as to provide a supporting shape to bold liquid, which is then fed into a nipping zone. In an embodiment there is a single belt use... | 01/01/2008 |
| 7314497 | Filter medium and structure Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units. Such filter units can be placed in the stream of a mobile f... | 01/01/2008 |
| 7311752 | Electrostatic air filter The invention is a filter for gaseous media in which nano alumina fibers and second fibers are arranged in a matrix to create asymmetrical pores. The filter is a high efficiency, high capacity particulate filter that intercepts pathogens and other particulate matter... | 12/25/2007 |
| 7311209 | Filter material A filter material has one or more plies of fiber layers, in particular for the production of filter bags and filter cones for infused beverages, the at least one fiber layer containing fibers or microcapsules having phase change material. Paraffinic hydrocarbons can... | 12/25/2007 |
| 7309372 | Filter medium and structure Thermoplastic bicomponent binder fiber can be combined with other media, fibers and other filtration components to form a thermally bonded filtration media. The filtration media can be used in filter units. Such filter units can be placed in the stream of a mobile f... | 12/18/2007 |
| 7303668 | Filtering device A filtering device includes a hollow casing and a plurality of tubes. The casing includes an interior defined by a surrounding wall. The casing further includes a plurality of through-holes defined in the surrounding wall and in communication with the interior of th... | 12/04/2007 |
| 7296691 | Carbon or activated carbon nanofibers Carbon or activated carbon nanofibers are made from fibrillated nanofibers having a Canadian Standard Freeness of less than about 100, and/or a fiber diameter of less than or equal to about 400 nm. BET surface areas are greater than about 800 m2/g The fib... | 11/20/2007 |
| 7297263 | Efficient water filters Water treatment devices that include filtration media with specified grain size distributions are provided. In one arrangement, the device contains a volume of grains such that between about 1 and 15 vol % of the grains have a grain size in a range between a first g... | 11/20/2007 |
| 7296690 | Method and device for inactivating viruses The invention provides a device for the inactivation of a virus comprising a housing delimiting a fluid passageway, the passageway being provided with a filtering material having ionic copper selected from the group consisting of Cu+ and Cu++ i... | 11/20/2007 |
| 7293661 | Filtration media comprising granules of binder-agglomerated active component Granules comprise binder-agglomerated active particles for liquid treatment or filtration. Each granule has a center core of a material that itself has binding properties without the addition of other binders or sprays or adhesives, or, alternatively, each granule c... | 11/13/2007 |
| 7290667 | Microfluidic sieve using intertwined, free-standing carbon nanotube mesh as active medium A microfluidic sieve having a substrate with a microfluidic channel, and a carbon nanotube mesh. The carbon nanotube mesh is formed from a plurality of intertwined free-standing carbon nanotubes which are fixedly attached within the channel for separating, concentra... | 11/06/2007 |
| 7287650 | 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... | 10/30/2007 |
| 7285220 | Water softener Disclosed is a water softener capable of producing soft water at various temperatures and facilitating the regeneration of an ion exchange resin thereof. The water softener includes a water softening tank in which an internal region containing therein the ion exchan... | 10/23/2007 |
| 7276163 | Membrane devices with controlled transmembrane pressure and method of use A crossflow membrane device that receives a feedstock at a feed end face and separates the feedstock into permeate and retentate. The device has a membrane support containing at least one monolith of porous material defining a plurality of passageways extending long... | 10/02/2007 |
| 7276166 | Fiber-fiber composites A fiber-fiber composite is disclosed herein comprising majority fibers and minority fibers, the minority fibers having a softening point lower than said majority fibers such that when the admixture of majority fibers and minority fibers are wet laid to form a paper-... | 10/02/2007 |
| 7276042 | Low hydraulic resistance cartridge A cartridge for treating medical or biological fluid includes a first cap having an inlet for the fluid, a container including a plurality of compartments and a second cap including an outlet for the fluid, wherein each compartment contains a plurality of particles,... | 10/02/2007 |
| 7264719 | Particles with silver carried and producing method thereof To provide particles for water disinfection which are hard to be suspended and are hard to be diffused in water which is suitable for use of disinfecting water and which are capable of developing disinfection effect fully and method of producing the same. Par... | 09/04/2007 |
| 7228973 | Nonwoven fibrous media especially useful for the separation of blood constituents Blood separation media include a non-woven web of fibrillated and non-fibrillated synthetic staple fibers. The fibrillated synthetic staple fibers will most preferably have a Canadian Standard Freeness (CSF) of less than about 300 mL, whereas the non-fibrillated syn... | 06/12/2007 |
| 7210914 | Series apparatus for forming layered fibrous mat of differing fibers and controlled surfaces An arrangement for forming a web of fibrous media wherein at least one formed layered portion is attenuated from a first die source selectively unto a first collector and successively combining such portion with at least another formed layered portion which is atten... | 05/01/2007 |
| 7195233 | Aerator The invention relates to an aerator consisting of a porous plastic moulded body with pores that are smaller on the air outflow side (A) than on the air inflow side (B) lying opposite. The inventive aerator is particularly suitable for use in sewage treatment plants.... | 03/27/2007 |
| 7175762 | Nanocarpets for trapping particulates, bacteria and spores A nanofeature particulate trap comprising a plurality of densely packed nanofeatures, such as nanotubes, and a particulate detector incorporating the nanofeature particulate trap are provided. A method of producing a nanotrap structure alone or integrated with a par... | 02/13/2007 |
