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Class Information
Number: 55/DIG.31
Name: Gas separation > Filter frame
Description:










Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8702829 Framed air filter with offset slot, and method of making Apr. 22, 2014
8673041 Filter holding frame with adjustable clamping mechanism and slot for pre-filter Mar. 18, 2014
8668755 Membrane-free filter and/or integral framing for filter Mar. 11, 2014
8647405 Filter housing for accommodating a plurality of filter sizes Feb. 11, 2014
8641795 Filter arrangements; housing; assemblies; and, methods Feb. 4, 2014
8623109 Collapsible extended surface filter and air cleaner system using collapsible extended surface filter Jan. 7, 2014
8613785 Tabbed air filter Dec. 24, 2013
8597392 Filter arrangement with overlapping swords Dec. 3, 2013
8562707 Air filter having fluted filter media Oct. 22, 2013
8535404 Membrane-free filter and/or integral framing for filter Sep. 17, 2013
8523972 Atmospheric air filtration unit, air pre-filtration unit, and associated air filtration system for removeable attachment thereof Sep. 3, 2013
8518142 Filter arrangement and methods Aug. 27, 2013
8506666 Filter assembly with improved gasket Aug. 13, 2013
8500839 Panel filter Aug. 6, 2013
8491690 Panel filter Jul. 23, 2013
8444733 Filter device, especially air filter May. 21, 2013
8425645 Air cleaner for motor vehicles operating in extreme weather conditions Apr. 23, 2013
8414674 Collapsible extended surface filter and air cleaner system using collapsible extended surface filter Apr. 9, 2013
8388717 Furnace filter adapters and braces Mar. 5, 2013
8382874 Air filter having dimensional extending tabs Feb. 26, 2013
8343248 Filter unit panel Jan. 1, 2013
8328895 Filter media pleat pack retention Dec. 11, 2012
8328896 Frame for filter pack Dec. 11, 2012
8303678 Intake air filter system Nov. 6, 2012
8282699 Filter unit panel and method of manufacturing the same Oct. 9, 2012
8241381 Air filter with integral inter-filter gap filler Aug. 14, 2012
8241382 Air cleaner for motor vehicles operating in extreme weather conditions Aug. 14, 2012
8211198 Adjustable filter racks Jul. 3, 2012
8202337 Integrated containment system Jun. 19, 2012
8192533 Support system for exhaust emission control elements Jun. 5, 2012
8187355 Filter assembly for vacuum cleaner May. 29, 2012
8187356 Protective cover for respiratory device May. 29, 2012
8182571 Frame for receiving a filter element and method for providing May. 22, 2012
8177877 Filter frame attachment and fluted filter having same May. 15, 2012
8172919 Window filter apparatus May. 8, 2012
8163054 Air filter with internal frame support Apr. 24, 2012
8163055 Filter housing structure of projector Apr. 24, 2012
8157881 Collapsible extended surface filter and air cleaner system using collapsible extended surface filter Apr. 17, 2012
8157882 Hanging air filter Apr. 17, 2012
8142537 Support grid and alignment appartus for a filter element and housing Mar. 27, 2012
8137427 Filter element with pleat support combs Mar. 20, 2012
8105409 Filter retention system Jan. 31, 2012
8092567 Flexible size adjustable filter element with end-cap Jan. 10, 2012
8075658 Filter element Dec. 13, 2011
8052770 Filter retainer for turbine engine Nov. 8, 2011
8048186 Filter retention systems and devices Nov. 1, 2011
8048182 Integrated containment system Nov. 1, 2011
8048187 Filter frame attachment and fluted filter having same Nov. 1, 2011
8029585 Pocket filter assembly Oct. 4, 2011
8029589 Laser welding method and filter element produced by it Oct. 4, 2011

1 2 3 4 5 6 7 8










 
 
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