Inventor · disambiguated record
Richard A. Hayden
Also filed as: HAYDEN RICHARD · HAYDEN RICHARD A
36 granted patents·1 pending application·947 citations·filing 1983–2015
98Inventor score
Top patents by PatentIndex Score
37 records- 0197US8309046B2Methods for removal of mercury from flue gasPOLLACK NICHOLAS R·Filed 2011·Granted Nov 13, 2012·41 cites·36 claims
- 0297US8216535B2Sorbent formulation for removal of mercury from flue gasPOLLACK NICHOLAS R·Filed 2010·Granted Jul 10, 2012·31 cites·20 claims
- 0396US8715599B2Sorbent formulation for removal of mercury from flue gasCALGON CARBON CORP·Filed 2013·Granted May 6, 2014·16 cites·20 claims
- 0496US5356849ACatalytic carbonCALGON CARBON CORP·Filed 1993·Granted Oct 18, 1994·139 cites·4 claims
- 0595US5444031AProcess for making catalytic carbonCALGON CARBON CORP·Filed 1993·Granted Aug 22, 1995·97 cites·14 claims
- 0694US8679430B2Methods for removal of mercury from flue gasCALGON CARBON CORP·Filed 2012·Granted Mar 25, 2014·12 cites·16 claims
- 0790US5733515APurification of air in enclosed spacesCALGON CARBON CORP·Filed 1996·Granted Mar 31, 1998·114 cites·8 claims
- 0887US8450238B2Sorbent formulation for removal of mercury from flue gasPOLLACK NICHOLAS R·Filed 2012·Granted May 28, 2013·4 cites·48 claims
- 0986US5504050AProcess for making a catalytically-active carbonaceous charCALGON CARBON CORP·Filed 1995·Granted Apr 2, 1996·46 cites·12 claims
- 1085US5368355AVehicle seat having normal usage and storage positionsGEN MOTORS CORP·Filed 1993·Granted Nov 29, 1994·88 cites·6 claims
- 1181US9068745B2Methods for removal of mercury from flue gasCALGON CARBON CORP·Filed 2014·Granted Jun 30, 2015·3 cites·19 claims
- 1272US9321032B1Inherently concrete-compatible carbon sorbents for mercury removal from flue gasPOLLACK NICHOLAS R·Filed 2009·Granted Apr 26, 2016·2 cites·11 claims
- 1370US5364152AAdjustable seat for van-type vehiclesGEN MOTORS CORP·Filed 1993·Granted Nov 15, 1994·47 cites·10 claims
- 1469US5494869AProcess for regenerating nitrogen-treated carbonaceous chars used for hydrogen sulfide removalCALGON CARBON CORP·Filed 1994·Granted Feb 27, 1996·34 cites·9 claims
- 1567US5962729AMethod for the manufacture of N-phosphonomethylglycine from N-phosphonomethyliminodiacetic acid using a catalytic carbonCALGON CARBON CORP·Filed 1998·Granted Oct 5, 1999·11 cites·6 claims
- 1661US5466378AOxidized activated carbon for the control of pH and alkalinity in water treatment applicationsCALGON CARBON CORP·Filed 1994·Granted Nov 14, 1995·24 cites·2 claims
- 1756US5464605AProcess for the decomposition and removal of peroxidesCALGON CARBON CORP·Filed 1994·Granted Nov 7, 1995·12 cites·3 claims
- 1855US5368739AActivated carbon oxidized by air at near ambient temperatures for the control of ph and in water treatment applicationsCALGON CARBON CORP·Filed 1993·Granted Nov 29, 1994·23 cites·3 claims
- 1955US5368738AOxidized activated carbon for the control of pH and alkalinity in water treatment applicationsCALGON CARBON CORP·Filed 1993·Granted Nov 29, 1994·20 cites·4 claims
- 2055US5352370AMethod for SOx removal by catalytic carbonCALGON CARBON CORP·Filed 1993·Granted Oct 4, 1994·18 cites·6 claims
- 2155US4762338ABelt clamping guide loopGEN MOTORS CORP·Filed 1987·Granted Aug 9, 1988·14 cites·5 claims
- 2255US2016102019A1Inherently concrete-compatible carbon sorbents for mercury removal from flue gasCALGON CARBON CORP·Filed 2015·Application pending·0 cites
- 2354US5674462AMethod for the removal of non-metal and metalloid hydridesCALGON CARBON CORP·Filed 1994·Granted Oct 7, 1997·21 cites·20 claims
- 2450US5470748AMethod for measuring the relative catalytic activity of carbonaceous charsCALGON CARBON CORP·Filed 1994·Granted Nov 28, 1995·14 cites·12 claims
- 2546US5080433AApparatus and method of a vehicle seat with an adjustable leg restGEN MOTORS CORP·Filed 1991·Granted Jan 14, 1992·21 cites·2 claims
- 2644US6310000B1Process for making a co-impregnant catalyst carbonFiled 1994·Granted Oct 30, 2001·8 cites·8 claims
- 2744US5700436APurification of air in enclosed spacesCALGON CARBON CORP·Filed 1994·Granted Dec 23, 1997·10 cites·8 claims
- 2843US6114273AMethod for sox removal by catalytic carbonCALGON CARBON CORP·Filed 1997·Granted Sep 5, 2000·11 cites·6 claims
- 2941US5827795ACO-impregnant process for making catalytic carbonsCALGON CARBON CORP·Filed 1996·Granted Oct 27, 1998·7 cites·10 claims
- 3041US4530540AIntegral track vehicle seat apparatusAMERICAN SAFETY EQUIP·Filed 1983·Granted Jul 23, 1985·14 cites·16 claims
- 3140US6514906B1Carbonaceous chars having reduced catalytic activityCALGON CARBON CORP·Filed 1998·Granted Feb 4, 2003·6 cites·1 claims
- 3240US6238641B1Reduced catalytic carbonaceous char and process for reducing the inherent carbon catalytic reactivity of carbonaceous charsCALGON CARBON CORP·Filed 1998·Granted May 29, 2001·6 cites·1 claims
- 3338US6696030B1Method for reducing the chemical conversion of oxidizable or disproportionable compounds contacting carbonaceous charsCALGON CARBON CORP·Filed 1998·Granted Feb 24, 2004·7 cites·12 claims
- 3438US5637232AProcess for the catalytic oxidation of ferrous iron in liquid mediaCALGON CARBON CORP·Filed 1996·Granted Jun 10, 1997·7 cites·6 claims
- 3537US5466645AMethod for reactivating nitrogen-treated carbon catalystsCALGON CARBON CORP·Filed 1994·Granted Nov 14, 1995·4 cites·6 claims
- 3632US6593271B1Carbon char for metals-removalCALGON CARBON CORP·Filed 1999·Granted Jul 15, 2003·3 cites·3 claims
- 3732US4669781ALinear type seat reclinerGEN MOTORS CORP·Filed 1986·Granted Jun 2, 1987·12 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →