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| Number | Title | Issue Date |
| 8181793 | Depth filter sheet material and method for manufacturing same The present invention relates to a method for manufacturing a depth filter sheet material, the method comprising preparing a flowable aqueous pulp composition comprising a fibrous material and a binding agent; dispensing the flowable aqueous pulp composition onto a ... | 05/22/2012 |
| 8056732 | Microporous polymer material The present invention relates to a microporous material which is a non-network polymer having a chain comprised of repeating units bonded to each other and each including a first generally planar species and a rigid linker, the linker having a point of contortion su... | 11/15/2011 |
| 7798334 | Method and apparatus for manufacturing zeolite membrane, and zeolite tubular separation membrane provided by the method A process for manufacturing a zeolite membrane by hydrothermal synthesis on the surface of a porous tubular support 3 with both ends open, by adding a reaction solution containing a silica source and an alumina source and the porous tubular support 3 i... | 09/21/2010 |
| 7784619 | Method of making microporous filter membrane A filter membrane, methods of making such filter membrane and apparatus employing such filter membrane are disclosed, in which the filter membrane is a monolithic polymeric membrane that includes a polymeric filter layer including a micron-scale precision-shaped por... | 08/31/2010 |
| 7690514 | Microporous polymer material A microporous material comprises organic macromolecules comprised of first generally planar species connected by rigid linkers having a point of contortion such that two adjacent first planar species connected by the linker are held in non-coplanar orientation, subj... | 04/06/2010 |
| 7661541 | Porous spun polymeric structures and method of making same A non-woven polymeric matrix for separating leukocytes from a blood sample includes a non-woven three dimensional matrix formed from polymeric fibers having a predetermined pore volume fraction including a defined channel configuration, a predetermined pore size in ... | 02/16/2010 |
| 7651000 | Sieve material of metal, and method for its production The invention provides a substantially flat sieve material of metal with sieve apertures, in particular sieve apertures with microdimensions. The sieve apertures comprise at least one passage in the plane of the sieve material parallel to a main surface, while the i... | 01/26/2010 |
| 7644825 | Membrane and use thereof The membrane producible by shaping a polymer blend or a block copolymer comprising blocks of monomer units, loading the polymer blend or block copolymer with a blowing gas concentration within the polymer blend or block polymer above a critical concentration at a te... | 01/12/2010 |
| 7560024 | Method and system for controlling pore size of microporous phase inversion membranes This invention provides for a method to control the pore size or bubble point of porous membranes made by phase inversion in a continuous manufacturing process by blending two or more solutions each capable of producing a porous membrane with different pore size or ... | 07/14/2009 |
| 7442303 | Microporous filter membrane, method of making microporous filter membrane and separator employing microporous filter membranes A filter membrane, methods of making such filter membrane and apparatus employing such filter membrane are disclosed, in which the filter membrane is a monolithic polymeric membrane that includes a polymeric filter layer including a micron-scale precision-shaped por... | 10/28/2008 |
| 7384550 | Glaucoma implant having MEMS filter module Various MEMS filter elements or modules are disclosed, and which may be used in a glaucoma implant (490). One such MEMS filter module (34) includes a first film (70) and a second film (46) that are spaced and interconnected by a plurality... | 06/10/2008 |
| 7354392 | Structurally optimized hollow fiber membranes An elongated hollow microporous fiber comprises an inner wall surface defining an interior fiber lumen, an outer wall surface, and a microporous fiber wall therebetween, the fiber wall having one or more continuous, cohesive, elongated filaments embedded in the fibe... | 04/08/2008 |
| 7323033 | Nanostructured surfaces having variable permeability A nanostructured substrate is disclosed having a plurality of substrate openings disposed between the nanostructures on the substrate. When a desired fluid comes into contact with the substrate, at least a portion of the fluid is allowed to pass through at least one... | 01/29/2008 |
| 7314504 | Porous gas permeable material for gas separation A gas separator, a method for producing the gas separator, and a method for separating gases based on a property of inelasticity of the gases. The inventive gas separator is a permeable porous material for separating a mixture of gases by selectable pore size exclus... | 01/01/2008 |
| 7311832 | Adsorption membranes, method of producing same and equipment, including the adsorption membranes The present invention relates to adsorption membranes comprising microporous polymer membranes in which adsorbent particles are incorporated. Furthermore, the present invention relates to a method of producing the inventive adsorption membranes as well as devices wh... | 12/25/2007 |
| 7309458 | Multi-sided immersion formation of composite structures and method Sample preparation device and method for desalting and concentrating samples prior to further analysis such as by MALDI TOF and/or electro-spray ionization (ESI) mass spectrometry. The device in accordance with an embodiment of the present invention contains a three... | 12/18/2007 |
| 7309385 | Efficient 3-D nanostructured gas separation membranes There is provided a high efficient gas separation membrane of two or more layers, which comprises a separating layer of 3-dimensional nanostructure and a supporting layer, wherein the 3-dimensional nanostructure can maximize a surface area per unit permeation area. | 12/18/2007 |
| 7306729 | Porous PTFE materials and articles produced therefrom Novel porous PTFE membranes are described possessing a unique combination of high strength, low flow resistance, and small pore size. Additionally, unique constructions with superior filtration and venting properties incorporating porous PTFE membranes are described... | 12/11/2007 |
| 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 |
| 7287894 | Light guide plate with meso-nano pore structure A light guide plate (20) includes a light incident surface (21) having a meso-nano pore structure (210) formed thereat, a bottom surface (22) adjacent to the incident surface. The meso-nano pore structure includes a plurality of meso-nano... | 10/30/2007 |
| 7229580 | Preparation of porous poly(aryl ether) articles and use thereof The preparation and use of novel porous poly(aryl ether) articles is disclosed. The porous articles are prepared from blends of poly(aryl ether) polymers with polyimides by selectively decomposing the polyimide phase. The preferred reagents used to decompose the pol... | 06/12/2007 |
| 7226540 | MEMS filter module Various MEMS filter elements or modules are disclosed. One such MEMS filter module (34) includes a first film (70) and a second film (46) that are spaced and interconnected by a plurality of supports (78). A plurality of first flow ports ... | 06/05/2007 |
| 7223342 | Adsorption membranes, method of producing same and equipment, including the adsorption membranes The present invention relates to adsorption membranes, comprising microporous polymer membranes into which are incorporated porous silicon dioxide particles modified with hydrocarbon ligands having 2 to 24 carbon atoms as adsorbent particles. Furthermore, the presen... | 05/29/2007 |
| 7217746 | Coating compositions having a geometrically ordered array of polymeric particles and substrates coated therewith Coating materials comprising polymeric particles in a geometrically ordered array are disclosed. The particles can be formed from materials having different glass transition temperatures; this allows for phase segregation between areas of different glass transition ... | 05/15/2007 |
| 7192450 | Porous membranes for use with implantable devices A membrane for implantation in soft tissue comprising a first domain that supports tissue ingrowth, disrupts contractile forces typically found in a foreign body response, encourages vascularity, and interferes with barrier cell layer formation, and a second domain ... | 03/20/2007 |
| 7176273 | Functionalized porous poly(aryl ether ketone) materials and their use Functionalized porous poly(aryl ether ketone) articles are prepared by reacting ketone groups in the backbone of poly(aryl ether ketone) polymer with a primary amine reagent. Preferred functional primary amines are primary aliphatic amines or substituted hydrazines ... | 02/13/2007 |
| 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 |
| 7157528 | Permselective structurally robust membrane material A biocompatible multipolymer, having a backbone comprising about 10 to 45 wt % of at least one hard segment and about 55 to 90 wt % of soft segments. The soft segments are divided into three groups, 5 to 25 wt %, of total soft segment weight, of an oxygen permeable ... | 01/02/2007 |
| 7144505 | Melt-spun polysulfone semipermeable membranes and methods for making the same The present invention provides, inter alia, a composition useful for producing a homogeneous, semipermeable membrane, the composition comprising a polysulfone semipermeable membrane, the polysulfone semipermeable membrane comprising a mixture of: an ultra-high-molec... | 12/05/2006 |
| 7134999 | Optimized sensor geometry for an implantable glucose sensor An implantable sensor for use in measuring a concentration of an analyte such as glucose in a bodily fluid, including a body with a sensing region adapted for transport of analytes between the sensor and the bodily fluid, wherein the sensing region is located on a c... | 11/14/2006 |
| 7077939 | Method and apparatus for nanoparticle transport and detection According to one embodiment an apparatus includes a membrane and at least a portion of a nanotube imbedded within the membrane. The portion of the nanotube imbedded within the membrane provides a conduit through the membrane. ... | 07/18/2006 |
| 7048856 | Ultrafiltration membrane, device, bioartificial organ, and methods The present invention relates to ultrafiltration. In particular, the present invention provides a compact ultrafiltration device and methods for generating an ultrafiltrate, both of which can be used for a variety of applications, including, but not limited to filte... | 05/23/2006 |
| 7008567 | Essentially water-free polymerized crystalline colloidal array composites having tunable radiation diffracting properties and process for making The present invention is directed to a composite having tunable radiation diffracting properties which includes a flexible, water-free polymeric matrix and a crystalline colloidal array of particles having a lattice spacing, the array being embedded in the polymeric... | 03/07/2006 |
| 6998193 | Microporous membrane and its uses thereof A novel microporous membrane comprising a hot-melt adhesive and an engineering plastics, the methods of preparing such microporous membrane and the uses of the microporous membrane in, e.g., batteries, super capacitors, fuel cells, sensors, electrochromic devices or... | 02/14/2006 |
| 6946086 | Chemical compositions comprising crystalline colloidal arrays Crystalline colloidal arrays (CCA) which have been encapsulated in a polymer matrix to produce more robust polymerized crystalline colloidal arrays (PCCA) are provided. The PCCA's of the present invention can be in the form of a hydrogel which can be compatible for ... | 09/20/2005 |
| 6939468 | Highly asymmetric, hydrophilic, microfiltration membranes having large pore diameters The present invention relates to the field of synthetic polymeric microfiltration membrane materials that are fabricated to separate liquids from solids contained therein. One aspect of the invention relates to a highly asymmetric, hydrophilic microfiltration membra... | 09/06/2005 |
| 6919026 | Semipermeable membrane support and process of preparation thereof A semipermeable membrane support includes, a non-woven fabric including main fiber and binder fiber, both of which are formed of synthetic resin fine fiber, the non-woven fabric being manufactured by heating and pressing after paper making, wherein the semipermeable... | 07/19/2005 |
| 6887408 | Porous poly(aryl ether ketone) membranes, processes for their preparation and use thereof Porous poly(aryl ether ketone) (PAEK) articles are prepared from PAEK/polyimide blends by selective chemical decomposition and subsequent removal of the polyimide phase. Porous PAEK articles exhibit highly interconnected pore structure and a narrow pore size distrib... | 05/03/2005 |
| 6884375 | Hydrophobic membrane materials for filter venting applications The present invention relates to filtration media having both hydrophobic (water-repellent) properties. The filtration media are produced using a fluorothermoplastic material, such as a terpolymer of tetrafluoroethylene, vinylidene fluoride, and hexafluoropropylene.... | 04/26/2005 |
| 6811696 | Hydrophobic membrane materials for filter venting applications The present invention relates to filtration media having both hydrophobic (water-repellent) properties. The filtration media are produced using a fluorothermoplastic material, such as a terpolymer of tetrafluoroethylene, vinylidene fluoride, and hexafluoropropylene.... | 11/02/2004 |
