Assignee
BHA GROUP INC
US·32 granted patents·12 pending applications·875 citations·filing 1985–2011
Top patents by PatentIndex Score
44 records- 0198US5730766ANon-round unitary filter cartridgeBHA GROUP INC·Filed 1996·Granted Mar 24, 1998·284 cites·20 claims
- 0297US5632791AUnitary filter cartridgeBHA GROUP INC·Filed 1994·Granted May 27, 1997·140 cites·7 claims
- 0396US7927540B2Method of manufacturing a composite filter mediaBHA GROUP INC·Filed 2008·Granted Apr 19, 2011·39 cites·14 claims
- 0491US7527674B1Apparatus for filtering gas turbine inlet airBHA GROUP INC·Filed 2008·Granted May 5, 2009·26 cites·20 claims
- 0589US7534471B2Treatment of porous articleBHA GROUP INC·Filed 2005·Granted May 19, 2009·13 cites·28 claims
- 0688US7407703B2Composite membrane having oleophobic propertiesBHA GROUP INC·Filed 2005·Granted Aug 5, 2008·19 cites·18 claims
- 0786US7905935B2Twist and lock connection for pleated filter elementBHA GROUP INC·Filed 2008·Granted Mar 15, 2011·14 cites·16 claims
- 0883US6676722B1Air filter assembly capable of top and bottom loadingBHA GROUP INC·Filed 2002·Granted Jan 13, 2004·29 cites·4 claims
- 0983US5068811AElectrical control system for electrostatic precipitatorBHA GROUP INC·Filed 1990·Granted Nov 26, 1991·53 cites·73 claims
- 1082US7695551B2Apparatus for filtering gas turbine inlet airBHA GROUP INC·Filed 2008·Granted Apr 13, 2010·12 cites·16 claims
- 1181US7942948B2Filter element including a composite filter mediaBHA GROUP INC·Filed 2008·Granted May 17, 2011·10 cites·18 claims
- 1279US8038776B2Apparatus for filtering gas turbine inlet airBHA GROUP INC·Filed 2010·Granted Oct 18, 2011·5 cites·18 claims
- 1378US7927392B2Twist and lock connection for pleated filter element with flange-to-flange locking meansBHA GROUP INC·Filed 2008·Granted Apr 19, 2011·13 cites·17 claims
- 1478US5665147ACollector plate for electrostatic precipitatorBHA GROUP INC·Filed 1993·Granted Sep 9, 1997·47 cites·9 claims
- 1577US7588796B2Method of making a composite membraneBHA GROUP INC·Filed 2005·Granted Sep 15, 2009·4 cites·17 claims
- 1675US7771818B2Treatment of porous articleBHA GROUP INC·Filed 2002·Granted Aug 10, 2010·13 cites·17 claims
- 1774US8029607B2Cleaning pressure reduction through blowpipesBHA GROUP INC·Filed 2009·Granted Oct 4, 2011·8 cites·15 claims
- 1870US8048516B2Air permeable waterproof bicomponent filmBHA GROUP INC·Filed 2008·Granted Nov 1, 2011·2 cites·20 claims
- 1970US7635062B2Composite membraneBHA GROUP INC·Filed 2005·Granted Dec 22, 2009·4 cites·13 claims
- 2069US7186284B2Filter mounting systemBHA GROUP INC·Filed 2004·Granted Mar 6, 2007·16 cites·33 claims
- 2168US7985275B2Filter media and devices for high temperature filtration and methodsBHA GROUP INC·Filed 2006·Granted Jul 26, 2011·3 cites·16 claims
- 2266US7131316B2Method and apparatus for testing air permeable waterproof glovesBHA GROUP INC·Filed 2004·Granted Nov 7, 2006·12 cites·17 claims
- 2365US7942275B2Expanded PFTE membrane and method of makingBHA GROUP INC·Filed 2008·Granted May 17, 2011·3 cites·12 claims
- 2463US7374796B2High temperature polymer filtration mediumBHA GROUP INC·Filed 2004·Granted May 20, 2008·8 cites·8 claims
- 2560US6858052B2Filter cartridge mounting structureBHA GROUP INC·Filed 2003·Granted Feb 22, 2005·17 cites·19 claims
- 2659US5173867AMultiple rapper control for electrostatic precipitatorBHA GROUP INC·Filed 1990·Granted Dec 22, 1992·23 cites·41 claims
- 2756US4813985ATensioning device for bag filtersBHA GROUP INC·Filed 1987·Granted Mar 21, 1989·21 cites·13 claims
- 2855US2009220764A1Oleophobic laminated article and methodBHA GROUP INC·Filed 2008·Application pending·0 cites
- 2954US2009273111A1Method of making a wind turbine rotor bladeBHA GROUP INC·Filed 2008·Application pending·0 cites
- 3053US2011097571A1Oleophobic, air permeable, and breathable composite membraneBHA GROUP INC·Filed 2009·Application pending·0 cites
- 3152US2010123312A1Retrofit arrangement for pulse jet dust collectorsBHA GROUP INC·Filed 2008·Application pending·0 cites
- 3249US5705923AVariable inductance current limiting reactor control system for electrostatic precipitatorBHA GROUP INC·Filed 1992·Granted Jan 6, 1998·14 cites·14 claims
- 3347US4867771ATensioning device for bag filtersBHA GROUP INC·Filed 1988·Granted Sep 19, 1989·14 cites·1 claims
- 3446US2008272048A1Filter cartridge media retention systemBHA GROUP INC·Filed 2007·Application pending·0 cites
- 3546US2010072145A1Membrane tabsBHA GROUP INC·Filed 2008·Application pending·0 cites
- 3644US8021456B2Filter element with high temperature polymer retaining straps and method of manufactureBHA GROUP INC·Filed 2008·Granted Sep 20, 2011·0 cites·16 claims
- 3744US2008022855A1Filter cleaning system and methodBHA GROUP INC·Filed 2006·Application pending·0 cites
- 3844US2008060328A1Filter and filter mediaBHA GROUP INC·Filed 2006·Application pending·0 cites
- 3944US2011209612A1Utilization of powdered sorbent for mercury control from coal-fired power plantsBHA GROUP INC·Filed 2011·Application pending·0 cites
- 4039US2011252757A1Helical strapping method for high temp pleated filtersBHA GROUP INC·Filed 2010·Application pending·0 cites
- 4138US2008229927A1Filter cleaning control system and methodBHA GROUP INC·Filed 2007·Application pending·0 cites
- 4238US2007266681A1Filter mounting structure and methodBHA GROUP INC·Filed 2006·Application pending·0 cites
- 4333US5636982AMethod and apparatus for acoustically enhancing cooling of clinkerBHA GROUP INC·Filed 1995·Granted Jun 10, 1997·4 cites·18 claims
- 4431US4671812ATensioning device for bag filtersBHA GROUP INC·Filed 1985·Granted Jun 9, 1987·5 cites·13 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →