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Mathijs Van Genderen: Method for determining catalyst cool down temperature. Engelhard Corporation, TNO Automotive, Richard A Negin, June 1, 2004: US06742330 (82 worldwide citation)

A diesel powered vehicle is provided with an SCR system which uses an external reducing reagent to convert NOx emissions in a manner which accounts for the effects of NOx transient emissions on the reducing catalyst. Actual NOx emissions produced by the engine are filtered using a variable NOx time ...


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Joseph C Dettling, Robert Skomoroski: Catalyzed diesel exhaust particulate filter. Engelhard Corporation, March 31, 1992: US05100632 (81 worldwide citation)

A self-cleaning diesel exhaust particulate filter is disclosed wherein burn-off of collected particulate matter is accomplished at certain exhaust gas temperatures, the filter being provided with a catalyst mixture consisting essentially of a platinum group metal and an alkaline earth metal oxide. T ...


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Imre Fekete deceased: Fuel cell/battery hybrid system. Engelhard Corporation, October 9, 1990: US04962462 (80 worldwide citation)

A fuel cell/battery hybrid power system is disclosed which has a microprocessor based control system. The control system enables the fuel cell to be taken out of the system by a switch when its predetermined maximum desired energy output is about to be exceeded by load requirements. The battery is p ...


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Kenneth E Voss, Bulent O Yavuz, Robert J Farrauto, Michael P Galligan: Oxidation catalyst with bulk ceria, a second bulk metal oxide, and platinum. Engelhard Corporation, February 13, 1996: US05491120 (76 worldwide citation)

Oxidation catalyst compositions include a catalytic material having a BET surface area of at least about 10 m.sup.2 /g and consisting essentially of a combination of bulk ceria and a bulk second metal oxide which may be one or more of titania, zirconia, ceria-zirconia, silica, alumina-silica and .al ...


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Robert J Farrauto, Michel Deeba: Basic zeolites as hydrocarbon traps for diesel oxidation catalysts. Engelhard Corporation, Richard A Negin, September 8, 1998: US05804155 (75 worldwide citation)

The present invention relates to a composition comprising at least one zeolite consisting essentially of the zeolites selected from the group of neutral and basic zeolites and at least one platinum group metal component. This composition has been found to be useful in a method of treating gas stream ...


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Ronald M Heck, Paul Flanagan: Catalytic partial oxidation process. Engelhard Corporation, July 4, 1989: US04844837 (74 worldwide citation)

A method and apparatus for carrying out partial oxidation of hydrocarbon feeds to produce hydrogen rich gases suitable for steam reforming, utilizes a monolithic platinum and palladium containing catalyst. The process comprises introducing an oxygen containing oxidant gas (e.g., air), steam and a hy ...


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Michel Deeba, John K Hochmuth: Apparatus, method, and system for concentrating adsorbable pollutants and abatement thereof. Engelhard Corporation, Stephen I Miller, August 22, 2000: US06105365 (72 worldwide citation)

A new method, system, and apparatus are described for the adsorption and concentration of adsorbable pollutants. The invention allows for simultaneous pollutant adsorption and pollutant concentration. The invention is particularly useful in treating the exhaust of internal combustion engines contain ...


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Michel Deeba, John J Steger, Harold N Rabinowitz, John S Foong: Layered catalyst composite. Engelhard Corporation, Richard A Negin, July 20, 2004: US06764665 (71 worldwide citation)

The present invention relates to a layered catalyst composite of the type generally referred to as a three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides. The structure of the layered c ...


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Chung Zong Wan, Joseph C Dettling: Catalyst compositions and methods of making the same. Engelhard Corporation, February 23, 1988: US04727052 (70 worldwide citation)

A method of making a catalyst composition comprising an activated alumina coating stabilized against thermal degradation includes applying a coating of alumina having one or more platinum group metal catalytic components dispersed thereon onto a carrier substrate and calcining the coating. The calci ...