1
Alexander Gorel, John Lawrence Calabrese: Low pressure EGR system for diesel engines. Engelhard Corporation, Richard A Negin, October 16, 2001: US06301887 (135 worldwide citation)

A low pressure EGR system suitable for use as a passive retrofit system is disclosed for moving vehicles equipped with a diesel engine. The EGR loop inlet is positioned upstream of the exhaust particulate filter and downstream of the turbine to utilize backpressure created by the exhaust particulate ...


2
Joseph A Patchett: Staged reductant injection for improved NO.sub.x reduction. Engelhard Corporation, Richard A Negin, October 3, 2000: US06125629 (114 worldwide citation)

An external reductant for an SCR vehicular NO.sub.x emission control system is selectively injected to SCR catalysts which are only at catalytically active temperatures thereby avoiding reductant absorption in catalytically unactive catalysts and improving conversion response time.


3
Patrick Lee Burk, John Karl Hochmuth, Joseph Charles Dettling, Ronald Marshall Heck, John Joseph Steger, Samuel Jack Tauster: Method and apparatus for treating an engine exhaust gas stream. Engelhard Corporation, Richard A Negin, January 9, 2001: US06171556 (110 worldwide citation)

A method and apparatus in accordance with the invention is described which comprises treating an engine exhaust gas stream containing hydrocarbons and other pollutants. The method of this invention comprises the steps of flowing the exhaust gas stream through a catalytic member comprising a monolith ...


4
Joseph A Patchett, Rudolfus Petrus Verbeek, Karl Richard Grimston, Gary Wayne Rice, John Lawrence Calabrese, Mathijs Van Genderen: Control system for mobile NOx SCR applications. Engelhard Corporation, TNO Automotive, Richard A Negin, July 9, 2002: US06415602 (105 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 ...


5
Michel Deeba, Yiu Kwan Lui, Joseph C Dettling: Four-way diesel exhaust catalyst and method of use. Engelhard Corporation, Richard A Negin, July 25, 2000: US06093378 (99 worldwide citation)

A catalyst composition and structure containing the same and methods for treating diesel exhaust including a catalyst comprising a precious metal on a support, a first zeolite component in the presence of a precious metal and a second zeolite component comprising a zeolite and a precious metal, and ...


6
Gary A Harpell, Igor Palley, Sheldon Kavesh, Dusan C Prevorsek: Ballistic-resistant composite article. Allied Corporation, Richard A Negin, Gerhard Fuchs, May 31, 1988: US04748064 (98 worldwide citation)

The present invention provides an improved, composite article of manufacture which comprises a network of fibers having a tensile modulus of at least about 500 grams/denier and an energy-to-break of at least about 22 Joules/gram. An elastomeric matrix material having a tensile modulus of less than a ...


7
Gary A Harpell, Igor Palley, Sheldon Kavesh, Dusan C Prevorsek: Complex composite article having improved impact resistance. Allied Corporation, Richard A Negin, Gerhard Fuchs, April 12, 1988: US04737402 (95 worldwide citation)

The present invention provides an improved, complex composite article of manufacture which comprises a network of high strength fibers having a tensile modulus of at least about 160 grams/denier and a tenacity of at least about 7 g/denier. An elastomeric material substantially coats each of the indi ...


8
Joseph Allan Patchett, Joseph Charles Dettling, Elizabeth Alina Przybylski: Catalyzed SCR filter and emission treatment system. BASFD Catalysts, Richard A Negin, June 12, 2007: US07229597 (91 worldwide citation)

Provided is an emission treatment system and method for simultaneously remediating the nitrogen oxides (NOx), particulate matter, and gaseous hydrocarbons present in diesel engine exhaust streams. The emission treatment system has an oxidation catalyst upstream of a soot filter coated with a materia ...


9
Gary A Harpell, H L Li, Y D Kwon, D C Prevorsek: Composite and article using short length fibers. Allied Signal, Richard A Negin, Gerhard H Fuchs, April 11, 1989: US04820568 (84 worldwide citation)

The present invention is an improved prepreg layer, multilayer composite based on the improved prepreg layer, and article made from the multilayer composite.


10
Shiang Sung, Harold N Rabinowitz, Rudolf M Smaling: Exhaust gas treatment system. Engelhard Corporation, Richard A Negin, July 11, 2000: US06087298 (82 worldwide citation)

The present invention relates to an exhaust gas treatment catalytic article having an upstream catalytic zone and at least one downstream catalytic zone. The upstream catalytic zone has an upstream composition which has a first upstream support, and at least one first upstream palladium component. T ...