Assignee
ENGELHARD CORP
US·640 granted patents·39 pending applications·30,288 citations·filing 1979–2006
Top patents by PatentIndex Score
679 records- 0199US6125629AStaged reductant injection for improved NOx reductionENGELHARD CORP·Filed 1998·Granted Oct 3, 2000·303 cites·6 claims
- 0299US4714694AAluminum-stabilized ceria catalyst compositions, and methods of making the sameENGELHARD CORP·Filed 1986·Granted Dec 22, 1987·201 cites·52 claims
- 0398US7182927B2Hydrothermally stable metal promoted zeolite beta for NOx reductionENGELHARD CORP·Filed 2005·Granted Feb 27, 2007·51 cites·12 claims
- 0498US6777370B2SOx tolerant NOx trap catalysts and methods of making and using the sameENGELHARD CORP·Filed 2001·Granted Aug 17, 2004·133 cites·14 claims
- 0598US6699404B2Massive bodies containing free halogen source for producing highly converted solutions of chlorine dioxideENGELHARD CORP·Filed 2002·Granted Mar 2, 2004·82 cites·37 claims
- 0698US6610124B1Heavy hydrocarbon recovery from pressure swing adsorption unit tail gasENGELHARD CORP·Filed 2002·Granted Aug 26, 2003·186 cites·42 claims
- 0798US6363716B1Plasma fuel processing for NOx control lean burn enginesENGELHARD CORP·Filed 2000·Granted Apr 2, 2002·96 cites·8 claims
- 0898US6176078B1Plasma fuel processing for NOx control of lean burn enginesENGELHARD CORP·Filed 1998·Granted Jan 23, 2001·214 cites·43 claims
- 0998US6171556B1Method and apparatus for treating an engine exhaust gas streamENGELHARD CORP·Filed 1993·Granted Jan 9, 2001·247 cites·25 claims
- 1098US6087298AExhaust gas treatment systemENGELHARD CORP·Filed 1996·Granted Jul 11, 2000·252 cites·51 claims
- 1198US5804155ABasic zeolites as hydrocarbon traps for diesel oxidation catalystsENGELHARD CORP·Filed 1995·Granted Sep 8, 1998·111 cites·8 claims
- 1298US5597771ALayered catalyst compositeENGELHARD CORP·Filed 1994·Granted Jan 28, 1997·314 cites·84 claims
- 1398US5516497AStaged metal-promoted zeolite catalysts and method for catalytic reduction of nitrogen oxides using the sameENGELHARD CORP·Filed 1991·Granted May 14, 1996·289 cites·12 claims
- 1498US5491120AOxidation catalyst with bulk ceria, a second bulk metal oxide, and platinumENGELHARD CORP·Filed 1994·Granted Feb 13, 1996·176 cites·23 claims
- 1598US5357908AFuel modification method and apparatus for reduction of pollutants emitted from internal combustion enginesENGELHARD CORP·Filed 1993·Granted Oct 25, 1994·139 cites·17 claims
- 1698US5057483ACatalyst composition containing segregated platinum and rhodium componentsENGELHARD CORP·Filed 1990·Granted Oct 15, 1991·252 cites·43 claims
- 1798US5024981AStaged metal-promoted zeolite catalysts and method for catalytic reduction of nitrogen oxides using the sameENGELHARD CORP·Filed 1989·Granted Jun 18, 1991·138 cites·8 claims
- 1898US4961917AMethod for reduction of nitrogen oxides with ammonia using promoted zeolite catalystsENGELHARD CORP·Filed 1989·Granted Oct 9, 1990·463 cites·7 claims
- 1998US4853202ALarge-pored crystalline titanium molecular sieve zeolitesENGELHARD CORP·Filed 1987·Granted Aug 1, 1989·90 cites·5 claims
- 2098US4844837ACatalytic partial oxidation processENGELHARD CORP·Filed 1982·Granted Jul 4, 1989·157 cites·12 claims
- 2198US4727052ACatalyst compositions and methods of making the sameENGELHARD CORP·Filed 1986·Granted Feb 23, 1988·162 cites·58 claims
- 2298US4493902AFluid catalytic cracking catalyst comprising microspheres containing more than about 40 percent by weight Y-faujasite and methods for makingENGELHARD CORP·Filed 1983·Granted Jan 15, 1985·159 cites·62 claims
- 2397US7276212B2Exhaust articles for internal combustion enginesENGELHARD CORP·Filed 2001·Granted Oct 2, 2007·102 cites·19 claims
- 2497US7175834B2Sunscreen composition with enhanced SPF and water resistant propertiesENGELHARD CORP·Filed 2005·Granted Feb 13, 2007·32 cites·35 claims
- 2597US6912847B2Diesel engine system comprising a soot filter and low temperature NOx trapENGELHARD CORP·Filed 2001·Granted Jul 5, 2005·91 cites·19 claims
- 2697US6764665B2Layered catalyst compositeENGELHARD CORP·Filed 2001·Granted Jul 20, 2004·168 cites·62 claims
- 2797US6662553B2Control system for mobile NOx SCR applicationsENGELHARD CORP·Filed 2002·Granted Dec 16, 2003·115 cites·59 claims
- 2897US6415602B1Control system for mobile NOx SCR applicationsENGELHARD CORP·Filed 2000·Granted Jul 9, 2002·249 cites·41 claims
- 2997US6238643B1Method and device for the production of an aqueous solution containing chlorine dioxideENGELHARD CORP·Filed 1999·Granted May 29, 2001·150 cites·33 claims
- 3097US6105365AApparatus, method, and system for concentrating adsorbable pollutants and abatement thereofENGELHARD CORP·Filed 1997·Granted Aug 22, 2000·197 cites·18 claims
- 3197US5792436AMethod for using a regenerable catalyzed trapENGELHARD CORP·Filed 1996·Granted Aug 11, 1998·129 cites·12 claims
- 3297US5462907ACeria-alumina oxidation catalystENGELHARD CORP·Filed 1994·Granted Oct 31, 1995·137 cites·13 claims
- 3397US5422331ALayered catalyst compositionENGELHARD CORP·Filed 1994·Granted Jun 6, 1995·161 cites·27 claims
- 3497US5254519ACatalyst composition containing platinum and rhodium componentsENGELHARD CORP·Filed 1991·Granted Oct 19, 1993·143 cites·35 claims
- 3597US4522894AFuel cell electric power productionENGELHARD CORP·Filed 1984·Granted Jun 11, 1985·410 cites·23 claims
- 3697US4387653ALimestone-based sorbent agglomerates for removal of sulfur compounds in hot gases and method of makingENGELHARD CORP·Filed 1981·Granted Jun 14, 1983·122 cites·6 claims
- 3797US4335023AMonolithic catalyst member and support thereforENGELHARD CORP·Filed 1980·Granted Jun 15, 1982·201 cites·32 claims
- 3896US7189376B2Multi-zoned catalyst and trapENGELHARD CORP·Filed 2003·Granted Mar 13, 2007·66 cites·92 claims
- 3996US7150145B2Control system for mobile NOx SCR applicationsENGELHARD CORP·Filed 2003·Granted Dec 19, 2006·101 cites·12 claims
- 4096US6875264B2Multi-layer effect pigmentENGELHARD CORP·Filed 2003·Granted Apr 5, 2005·81 cites·25 claims
- 4196US6693657B2Additive for YAG laser markingENGELHARD CORP·Filed 2001·Granted Feb 17, 2004·63 cites·20 claims
- 4296US6581374B2Control system for mobile NOx SCR applicationsENGELHARD CORP·Filed 2002·Granted Jun 24, 2003·73 cites·10 claims
- 4396US6569393B1Method and device for cleaning the atmosphereENGELHARD CORP·Filed 2000·Granted May 27, 2003·82 cites·19 claims
- 4496US6514512B1Pesticide delivery systemENGELHARD CORP·Filed 2000·Granted Feb 4, 2003·65 cites·18 claims
- 4596US6497750B2Pressure swing adsorption processENGELHARD CORP·Filed 2001·Granted Dec 24, 2002·106 cites·20 claims
- 4696US6446430B1System for reducing NOx transient emissionENGELHARD CORP·Filed 2001·Granted Sep 10, 2002·121 cites·9 claims
- 4796US6444012B1Selective removal of nitrogen from natural gas by pressure swing adsorptionENGELHARD CORP·Filed 2000·Granted Sep 3, 2002·116 cites·38 claims
- 4896US6432322B1Massive bodies for producing highly converted solutions of chlorine dioxdeENGELHARD CORP·Filed 2000·Granted Aug 13, 2002·81 cites·12 claims
- 4996US6248684B1Zeolite-containing oxidation catalyst and method of useENGELHARD CORP·Filed 1994·Granted Jun 19, 2001·129 cites·23 claims
- 5096US5243095AHydrogenation catalyst, process for preparing and process for using said catalystENGELHARD CORP·Filed 1992·Granted Sep 7, 1993·148 cites·18 claims
Showing the top 50 of 679 patent records by PatentIndex Score.
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