Famous Patents
William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 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 |
| 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 |
| 7288199 | Ceramic filter and method for purifying water A ceramic filter is provided including a substrate, a separation layer comprising titania and having an average pore size in a range of 0.08 to 1 μm and a thickness in a range of 5 to 20 μm, and an intermediate layer formed between the substrate and the separation... | 10/30/2007 |
| 7278542 | Filtering medium, method for making same The invention concerns a filtering medium based on a photocatalytic agent and activated carbon, characterized in that it comprises a permeable support covered with a first layer based on activated carbon, then a separate second layer based on a photocatalytic agent,... | 10/09/2007 |
| 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 |
| 7214319 | Method of separating protein from animal milk The present invention refers to a method of separating casein from animal milk, especially, after defatting the animal milk as the pretreatment, the processing of the defatted milk aforesaid through a ceramic filtration membrane to remove the casein in the milk. The... | 05/08/2007 |
| 7211232 | Refractory exhaust filtering method and apparatus A method for catalytically cleaning an exhaust gas, including receiving the exhaust gas in an inlet channel, blocking the exhaust gas in the inlet channel, diffusing the exhaust gas through a porous substantially fibrous nonwoven wall of the inlet channel, reacting ... | 05/01/2007 |
| 7168574 | Dual filter A dual filter apparatus and a process of making a dual filter apparatus that minimizes disruption to the normal flow pattern through the filter apparatus by forming a porous medium suitable to carry a fluid activator and placing an activator proximate the porous fil... | 01/30/2007 |
| 7077272 | Antibacterial member, method of preparing the same, antibacterial filter and antibacterial container An antibacterial member is constituted such that a propolis component is contained in, or adhered to, a water-insoluble base member. This antibacterial member is mixed into a filter member to be disposed in a flow passage in an antibacterial filter. Water in the ant... | 07/18/2006 |
| 7033498 | Cartridges useful in cleaning dialysis solutions Cartridges useful in regenerating or purifying dialysis solutions are described as well as methods to regenerate or purify spent dialysis solutions. Dialysis systems using the sorbent cartridges of the present invention are further described. ... | 04/25/2006 |
| 6978901 | Ceramic multilayer filters and method for producing the same The invention relates to the area of ceramics and to ceramic multilayer filters, such as used for separating gases. The invention provides ceramic multilayer filters which are more economical to produce. To this end, the inventive ceramic multilayer filters include ... | 12/27/2005 |
| 6959820 | Microporous filter media, filtration systems containing same, and methods of making and using The invention is directed to a microbiological interception enhanced filter medium, preferably having an adsorbent prefilter located upstream from the filter medium. Preferably, the prefilter is adapted to remove natural organic matter in an influent prior to the in... | 11/01/2005 |
| 6953604 | Microporous filter media, filtration systems containing same, and methods of making and using The invention is directed to a microbiological interception enhanced filter medium, preferably having an adsorbent prefilter located upstream from the filter medium. Preferably, the prefilter is adapted to remove natural organic matter in an influent prior to the in... | 10/11/2005 |
| 6913154 | Microporous filter media, filteration systems containing same, and methods of making and using The invention is directed to a microbiological interception enhanced filter medium, preferably having an adsorbent prefilter located upstream from the filter medium. Preferably, the prefilter is adapted to remove natural organic matter in an influent prior to the in... | 07/05/2005 |
| 6893571 | Method and apparatus for storing water separated from fuel An apparatus for storing water separated from fuels by a fuel filter is provided. The apparatus includes an absorber connected to a water accumulator of the fuel filter. The stored water may then be released again through heating or pressure using commercially avail... | 05/17/2005 |
| 6878277 | Photocatalytic filter, photocatalytic filter device and method for manufacturing photocatalytic filter Disclosed is a photocatalytic filter which can fully secure a space of gaps to constitute a flow path for flowing a fluid to be disposed of and which has gaps structured for easily trapping an organic substance in the fluid when the fluid is brought into contact wit... | 04/12/2005 |
| 6820751 | Light-transmittable linear photocatalytic filter material, filter to which the material is applied, and process for production thereof Light-transmittable linear photocatalytic filter material that can be arranged in parallel in the longitudinal direction without causing a filter to have the form of a barrel when the filter is made of a bundle of a number of such photocatalytic filter materials, ea... | 11/23/2004 |
| 6818130 | Method and apparatus for multistage liquid filtration The present invention provides a multistage liquid filtering apparatus and a multistage process for filtering microorganisms and other unwanted impurities from the liquid. The invention employs a microorganism-removing filter stage prior to an activated carbon filte... | 11/16/2004 |
| 6692640 | Mordenite zeolite membrane and method for producing the same A mordenite (MOR) zeolite membrane is formed on a porous substrate and has crystals that are substantially oriented in a specific crystalline direction. A method for producing the mordenite (MOR) zeolite membrane includes the steps of: immersing a porous ... | 02/17/2004 |
| 6603054 | Fibrous absorbent material and methods of making the same Disclosed is a fibrous absorbent structure that is wet stable and has large void volume with a density below the critical density of the fiber employed. In one embodiment, the fibrous absorbent uses open-celled foam technologies to keep the fibrous struct... | 08/05/2003 |
| 6550622 | Composite filter medium and fluid filters containing same A composite filter medium for removing at least 99.95 percent of particulates of a size in the 3 to 4 micron range and dissolved chemical contaminants from a fluid and filters of various configurations employing the composite filter medium are disclosed. ... | 04/22/2003 |
| 6551642 | Process for removing oil from foodstuffs using a membrane filter A process and system for extracting a solute from a solid material, such as oil from oil-bearing foodstuffs, utilize a substantially tubular membrane filter to separate a mass of the extracting medium and the foodstuffs into a miscella and foodstuffs of r... | 04/22/2003 |
| 6468428 | Glass material for carrying a photocatalyst, filter device using the same and light irradiating method A photocatalyst is carried on a surface of a light guiding body for guiding light needed to activate the photocatalyst in such a manner the light guided by the light guiding body irradiates directly from the surface of the light guiding body the photocata... | 10/22/2002 |
| 6415930 | Separator cartridge A separator cartridge comprises a support screen comprising a substantially rigid reinforced plastic cylinder including an inner first major surface and an outer second major surface, a first nonwoven polymer layer adhered to the inner first major surface... | 07/09/2002 |
| 6365214 | Cooking oil sponge An apparatus for absorbing, containing, immobilizing, transporting and disposing of quantities of used cooking oil and/or other oils and hydrocarbons, comprising decomposed organic matter and/or inorganic matter.... | 04/02/2002 |
| 6321915 | High performance filters based on inorganic fibers and inorganic fiber whiskers A filter media structure, which is capable of operating in the micro- and nanofiltration regime, offers: low cost, durability, high temperature and chemical resistance, high permeability, high flow rate, low pressure drop across the filter media, high mec... | 11/27/2001 |
| 6296821 | Complex shaped fiber for particle and molecular filtration An ultra-efficient multilobal cross-sectioned fiber filter for chemical contaminant filtering applications is described. An absorptive chemically reactive reagent, preferably an acid or base and in liquid or an adsorptive chemically reactive reagent (an a... | 10/02/2001 |
| 6261335 | Biosoluble glass fiber filtration media A biosoluble glass fiber filtration media includes a fibrous filtration layer of randomly oriented, entangled glass fibers which has an initial efficiency of 25% or greater as measured by ASHRAE 52.1 test method. The glass fibers forming the media have a ... | 07/17/2001 |
| 6254810 | Method for coating profecting and rigidifying a fabric made of heat-resistant fibers One may obtain an excellent protective coating for a fabric made of heat-resistant fibers, in particular a fabric made of glass fibers like those used for the manufacture of filters in the metallurgical industry, when use is made, as a starting material, ... | 07/03/2001 |
| 6155432 | High performance filters based on inorganic fibers and inorganic fiber whiskers A filter media structure, which is capable of operating in the micro- and nanofiltration regime, offers: low cost, durability, high temperature and chemical resistance, high permeability, high flow rate, low pressure drop across the filter media, high mec... | 12/05/2000 |
| 6136058 | Uniformly tacky filter media A filter medium, a tackified binder composition and a method for providing a uniformly distributed tackifier on the glass fibers of an unwoven fiberglass web for improving filtration capacity and efficiency. An emulsified tackifier, such as polybutene, is... | 10/24/2000 |
| 6113784 | Filter A filter includes a cylindrical pleated filter element having a longitudinal axis, an inner and outer periphery, first and second end surfaces, and a plurality of longitudinal pleats. First and second end elements are sealingly arranged with the first and... | 09/05/2000 |
| 6068723 | Process for preparing a separator cartridge A separator cartridge comprises a support screen comprising a substantially rigid reinforced plastic cylinder including an inner first major surface and an outer second major surface, a first nonwoven polymer layer adhered to the inner first major surface... | 05/30/2000 |
| 5993501 | Composite filter media A composite filter media includes a fibrous filtration layer of randomly oriented fibers and one or more pleatable stiffening layers which enable the composite filter media to be pleated and hold or retain its pleats. The pleatable stiffening layer(s) may... | 11/30/1999 |
| 5985141 | Coolant reconditioning system A two part system providing initial filtration of free oil and dirt followed by biological filtration with a copper wool and brass wool filter medium.... | 11/16/1999 |
| 5984110 | Device for purifying lightly laden water The subject matter of the present invention is a device for purifying lightly laden water containing particles and/or fatty matter and/or microorganisms in suspension. The device of the invention is a filter comprising a grid (1) on which is placed a filt... | 11/16/1999 |
| 5965091 | Filled paper for gas filtration The present invention relates to a filled paper for gas filtration, with a high adsorption and absorption capacity. This paper, consisting of cellulose fibers, is filled with organic and/or inorganic powders adapted in quantity and in quality to the gas t... | 10/12/1999 |
| 5954962 | Fibrous nonwoven web The present invention provides a polymeric nonwoven web having a relatively small pore size, and made from mixtures of aramid and other non-aramid fibers. The fibrous nonwoven web has a high titer reduction with respect to coliphage PR772. The present inv... | 09/21/1999 |
| 5888393 | Microparticle enhanced fibrous ceramic baffle for cryogenic liquid containers A ceramic composite comprising ceramic fibers and glass microparticles bound together as a porous matrix with a ceramic binder provides baffles for cryogenic fluids in a storage container.... | 03/30/1999 |
| 5876537 | Method of making a continuous ceramic fiber composite hot gas filter A ceramic fiber composite structure particularly suitable for use as a hot gas cleanup ceramic fiber composite filter and method of making same from ceramic composite material has a structure which provides for increased strength and toughness in high tem... | 03/02/1999 |
