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Browse by Category: Main > Chemistry
Class Information
Number: 55/350.1
Name: Gas separation > Multiple separators, each with discrete and longitudinally confined gas inlet or outlet flow path > Filters
Description: Apparatus comprising at least two filters.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8668754 Engine air intake device and construction machine incorporated with the same Mar. 11, 2014
8663353 Selective gas filter Mar. 4, 2014
8590158 Methods of making filter apparatus and fabricating a porous ceramic article Nov. 26, 2013
8398732 Process gas filtration Mar. 19, 2013
8388715 Modular apparatus for processing air, particularly for classified environments and food article making processes in general Mar. 5, 2013
8273143 Air cleaner, replaceable filter cartridges, and methods Sep. 25, 2012
8261540 Particulate matter sensor and exhaust gas purification apparatus Sep. 11, 2012
8246705 Exhaust air mist separator Aug. 21, 2012
8202422 Fluid system Jun. 19, 2012
8114182 Authorized filter servicing and replacement Feb. 14, 2012
8088189 Multi-flow filtration system Jan. 3, 2012
8048299 Crossflow pressure liquid filtration with ultrasonic enhancement Nov. 1, 2011
7976598 Multi-flow filtration system Jul. 12, 2011
7964008 Residual gas cleaner Jun. 21, 2011
7951215 Filtering plant for removing dusts from gases May. 31, 2011
7929300 Filter retention in electronics chassis Apr. 19, 2011
7909903 Air filter device Mar. 22, 2011
7909921 Pollution control device Mar. 22, 2011
7896959 Filtration apparatus Mar. 1, 2011
7867312 Trap device Jan. 11, 2011
7824635 Filter for exhaust gas from diesel engine and equipment Nov. 2, 2010
7753982 Filter with drained jacket, seal indicator/lock means, and seal baffle Jul. 13, 2010
7722767 Crossflow pressure liquid filtration with ultrasonic enhancement May. 25, 2010
7722694 Filter system for an air cleaner May. 25, 2010
7625415 Strainer for a gas turbine engine Dec. 1, 2009
7582130 Coalescing filter assembly Sep. 1, 2009
7576035 Honeycomb structure and method for manufacturing honeycomb structure Aug. 18, 2009
7572308 Mechanical system for installing and removing contacting devices from a chemical process tower Aug. 11, 2009
7520910 Modular air purification unit Apr. 21, 2009
7422626 Method and device for declogging filter Sep. 9, 2008
7416580 Filter assemblies and systems for intake air for fuel cells Aug. 26, 2008
7416574 Filter apparatus, exposure apparatus, and device-producing method Aug. 26, 2008
7390340 Filtration apparatus Jun. 24, 2008
7332004 Effluent filtering and containment apparatus Feb. 19, 2008
7329310 Filter module Feb. 12, 2008
7201787 Air cleaner and method of controlling operation thereof Apr. 10, 2007
7160505 Method for bactericidal, fungicidal, virucidal and insecticidal treatment of ambient air Jan. 9, 2007
7138008 Filter assemblies and systems for intake air for fuel cells Nov. 21, 2006
7081145 Aerosol separator; and method Jul. 25, 2006
7077888 Device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants Jul. 18, 2006
6994738 Snow filter Feb. 7, 2006
6979359 Portable filter unit and methods for using same Dec. 27, 2005
6969414 Waste stream separator Nov. 29, 2005
6936085 Vacuum loader Aug. 30, 2005
6926762 Air cleaning apparatus Aug. 9, 2005
6908494 Multistage air cleaner including pulse cleaning system Jun. 21, 2005
6878177 Incubator having combined HEPA and VOC filter Apr. 12, 2005
6800200 Dual-flow filter cartridge Oct. 5, 2004
6797027 Filter assemblies and systems for intake air for fuel cells Sep. 28, 2004
6764532 Method and apparatus for filtering exhaust particulates Jul. 20, 2004

1 2 3 4










 
 
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