Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8052771 | Removable dust collecting device for an air conduit A dust collecting device (100) installed inside of an air conduit (51) for collecting airborne particles and for filtrating the air consists of a dust collecting tubes set (1). Said dust collecting tubes set (1) comprises of a plurality o... | 11/08/2011 |
| 7985275 | Filter media and devices for high temperature filtration and methods A high temperature filter medium for use in a filtering operation comprising, a nonwoven fabric substrate having a physical structure and comprising a plurality of polymeric fibers, wherein at least a portion of the plurality of polymeric fibers comprise a base poly... | 07/26/2011 |
| 7976606 | Filter assembly with integral adhesive structural framework A filter assembly for removing unwanted contaminants and other impurities from a filtrant stream entering the intake region of an underlying device. The filter assembly comprises a filter media appropriate for segregating and separating the impurities and contaminan... | 07/12/2011 |
| 7964012 | Filter media with improved conductivity Filter media are provided having improved conductivity to enhance filtration efficiency and/or dissipate static charge, and methods for making the same. In one exemplary embodiment, the filter media can include a filtration substrate, and at least one conductive coa... | 06/21/2011 |
| 7947103 | Honeycomb structure and method for producing same Disclosed is a honeycomb structure which is bonded with a bonding material containing 0.1 to 10 mass % of a layered clay mineral. Also disclosed are a honeycomb structure which is bonded with a bonding material containing 0.1 to 10 mass % of an organic binder, and a... | 05/24/2011 |
| 7727300 | Polymeric structures with patterned reactivity Disclosed are polymeric constructs that can advantageously be utilized in a wide variety of fluid contact devices. The constructs include two or more polymeric materials, at least one of which includes reactive functionality so as to preferentially interact with an ... | 06/01/2010 |
| 7615092 | Filtering mask A filtering apparatus may comprise a base material folded in a folded state. A filter may be attached to the base material. In addition, the filtering apparatus may comprise a perforation. The perforation may be configured to define a portion of the base material co... | 11/10/2009 |
| 7608125 | Nonwoven fibrous mat for MERV filter and method of making Wet laid, nonwoven, fibrous mats suitable for making MERV 6 or higher filters, and methods of making the nonwoven mats are disclosed. The mats include a blend comprising a major portion of glass fibers and a minor portion of man-made polymer fibers, such as polyeste... | 10/27/2009 |
| 7582132 | Nonwoven fibrous mat for MERV filter and method Wet laid, nonwoven, fibrous mats suitable for making MERV 6 or higher, filters, and methods of making the nonwoven mats filter media are disclosed. The mats include a blend comprising a major portion of glass fibers, a minor portion of man-made polymer fibers, such ... | 09/01/2009 |
| 7559968 | Microbicidal air filter Microbicidal air filter for use with an air passageway, which includes an immobilization network including fibers having substantially embodied therein an amount of at least one antimicrobial agent sufficient to substantially immobilize, retain and kill microbes sus... | 07/14/2009 |
| 7520912 | Air purifying filter media and process for producing the same It is intended to provide an air purification filter which has a high dry tensile strength, a high wet tensile strength in association with a high water resistance and a high water repellency and exhibits a bactericidal effect due to a gas phase reaction in a gas ph... | 04/21/2009 |
| 7517381 | Devices and methods for chemical reactive filtration A gas contaminant is filtered using fibers having internal cavities containing a chemically reactive oxidizing agent, an acid or base, a coordinating agent, a complexing agent, or a deliquescing agent. Where the contaminant is basic, the reagent is preferably an oxi... | 04/14/2009 |
| 7465332 | Disposable grease filter for air filtration system and method of manufacturing same An all natural filter assembly without toxic materials for use in an air filtration unit is provided. The filter assembly for use in an air filtration unit includes a support frame and a disposable grease filter disposed across said support frame. The disposable gre... | 12/16/2008 |
| 7442218 | Exhaust gas treatment apparatus The present invention is characterized in that a casing 2 connected to an exhaust system 8, a honeycomb filter 3 placed in the inside of the casing 2, the honeycomb filter having a plurality of cells partitioned by partition walls, and pl... | 10/28/2008 |
| 7442223 | 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 acid or base... | 10/28/2008 |
| 7438739 | Catalyzed soot filter An improved catalyzed soot filter is comprised of a porous ceramic having, on at least a portion of the porous ceramic, an amorphous catalytic phase comprised of an alkali containing oxide glass having therein Si, Al or combination thereof. The improved catalyzed so... | 10/21/2008 |
| 7435279 | Honeycomb structure The honeycomb structure of the present invention has a construction wherein a plurality of cells 5 each functioning as a passage of a fluid, surrounded by porous partition walls 6 are arranged so as to be parallel to each other in the central axis dire... | 10/14/2008 |
| 7431838 | Gas/ion species selective membrane support by multi-stage nano-hole array metal structure An improved two-step replication process for fabrication of porous metallic membranes is provided. A negative of a porous non-metallic template is made by infiltration of a liquid precursor into the template, curing the precursor to form a solid negative, and removi... | 10/07/2008 |
| 7431749 | Catalytic filter for removing soot particulates from diesel engine exhaust and method of preparing the same Disclosed is a catalytic filter for removing soot particulates from diesel engine exhaust, which is comprised of monolithic oxidation catalyst upstream of the catalytic filter, which effectively oxidize gaseous pollutants and volatile organic fractions, and a cataly... | 10/07/2008 |
| 7429285 | Honeycomb structure and method of manufacturing the same A honeycomb structure 20 includes a cell structure 10 having a plurality of cells 9 communicating between two open ends being partitioned and defined by porous partition walls 7, an outer wall 30 disposed at the periphery of the ce... | 09/30/2008 |
| 7427309 | Honeycomb filter and ceramic filter assembly A ceramic filter assembly having improved exhaust gas processing efficiency. The ceramic filter assembly (9) is produced by adhering with a ceramic seal layer (15) outer surfaces of a plurality of filters (F1), each of which is formed from a sin... | 09/23/2008 |
| 7416581 | Air-permeable filtration media, methods of manufacture and methods of use The present invention provides an air-permeable filtration media that includes an air-permeable backing and an adsorbent. The adsorbent is at least partially embedded in the air-permeable backing. The present invention also provides a method of manufacturing an air-... | 08/26/2008 |
| 7416580 | Filter assemblies and systems for intake air for fuel cells A filter assembly for removing particulate contaminants and chemical contaminants from an incoming dirty air stream for a fuel cell. The filter assembly also includes a noise suppression element that reduces sound waves or noise emanating from any equipment, such as... | 08/26/2008 |
| 7416577 | Air intake filter screen assembly including a stand-off frame for preventing hail damage to surface coils of an associated air intake unit A filter screen assembly for use with an air intake structure, the structure including a face within which is formed an air intake opening. The filter screen assembly includes a screen having a flexible mesh material and an outer perimeter edge. A three-dimensional ... | 08/26/2008 |
| 7413625 | Bonding method of ceramic honeycomb structure Respective pieces of the porous honeycomb segments (2) are stacked while interposing the adhesive layers between respective adhered surfaces (2a), and are bonded together by performing main pressurization (F1, F2) on the whole thro... | 08/19/2008 |
| 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 |
| 7396384 | Fuel cell gas separator A fuel cell gas separator (14) between two planar solid oxide fuel cells (12) comprises a first layer (22) which is formed of a material that is impermeable to gases, a second layer (24) which is formed of a material that is impermeable t... | 07/08/2008 |
| 7396376 | Seal arrangement for filter element; filter element assembly; and, methods A filter element arrangement is provided which includes a media pack comprising Z-filter media, a preform and an overmold sealing a portion of the interface between the preform and the media pack, and also forming an air cleaner seal for the filter element. The over... | 07/08/2008 |
| 7396393 | Antiallergen filter, process for producing the same and use thereof An antiallergen filter of the present invention is characterized in that a water-insoluble high-molecular weight anti-allergenic agent having a phenolic hydroxyl group and a moisture-absorbing material are carried on a filter. Because of using the water-insoluble hi... | 07/08/2008 |
| 7393376 | Ceramic filter for exhaust gas emission control A ceramic filter assembly that resists cracking. The ceramic filter assembly is formed by integrating a plurality of columnar honeycomb filters made of a porous ceramic sintered material with a ceramic sealing material layer and formed to have a substantially ellipt... | 07/01/2008 |
| 7393377 | Honeycomb filter and exhaust gas treatment apparatus In a honeycomb filter in which a plurality of cells are formed by porous partition walls, and a predetermined cell whose one end portion is plugged, and a remaining cell whose other end portion is plugged are alternately arranged in such a manner as to form checked ... | 07/01/2008 |
| 7390347 | Zeolite membranes for selective oxidation of carbon monoxide in mixed hydrogen gas source Methods and apparatus are taught for selectively oxidizing carbon monoxide in a source of gas containing carbon monoxide and hydrogen. A gas containing carbon monoxide and hydrogen is fed into a membrane reactor (10, 50, 60) capable of selectively absorbing t... | 06/24/2008 |
| 7384442 | Ceramic wall-flow filter including heat absorbing elements and methods of manufacturing same A ceramic wall-flow filter for filtering particulate matter from gases and methods for manufacturing such wall-flow filters are disclosed. The filter includes an array of porous ceramic walls defining a pattern of end-plugged inlet and outlet cells, and heat absorbi... | 06/10/2008 |
| 7371270 | Odour absorbing filters An odor adsorbing or deodorizing filter which comprises a matrix or substrate impregnated with a mixture of particulate chemically modified activated carbon and particulate activated carbon, together with a binder. The filter may be incorporated into an ostomy colle... | 05/13/2008 |
| 7364608 | Chemical filter and method for manufacturing same The chemical filter supporting an ion-exchange resin comprising a fiber supporting body containing ion-exchange fiber and ion-exchange resin powder which is supported on the fiber supporting body is provided. The chemical filter possesses a large ion-exchange capaci... | 04/29/2008 |
| 7351273 | Apparatus and method for separating dust constituents out of an explosive dust-air mixture A method and an apparatus (10) for separating dust constituents out of an explosive dust-air mixture which is passed through a filter housing (26) with filter elements having filter surfaces use a dust container (64), which can be connected in a... | 04/01/2008 |
| 7344578 | Breather valve device for the container for an electronic control unit A breather valve device for a container for an electronic control unit, includes a support structure including, a substantially planar wall having first and second surfaces intended to face outwardly and inwardly of the container respectively, and in which is formed... | 03/18/2008 |
| 7341618 | Filters and methods of making and using the same Filters for removing particulate and gaseous organic and inorganic materials from a fluid stream are disclosed. The filter may contain a polymer matrix and optional sequestering agents. Methods of making the filters are also disclosed. Methods of using the filters t... | 03/11/2008 |
| 7341614 | Filter and filter assembly The invention provides a filter that has a plurality of through holes and satisfies the expression 2.5×A/B+52.5≦C≦2.5×A/B+60.2 (A≦20, 0 | 03/11/2008 |
| 7338547 | EMI-absorbing air filter Electro-magnetic-energy absorbing materials are used to treat air filters, such as those used in association with electronic equipment thereby suppressing the transmission of electromagnetic interference (EMI) therethrough. Disclosed are processes and materials for ... | 03/04/2008 |
