Stephanie Spiess has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: The present invention describes a double-layer three-way catalyst on an inert catalyst support comprising a first layer in direct contact with the inert catalyst support, comprising active alumina, a cerium/zirconium mixed oxide and palladium and a second layer applied to the first layer and in direct contact with the exhaust gas to be purified, comprising active alumina and rhodium, characterized in that the second layer is free of cerium and cerium containing materials, the use of such catalyst for cleaning the exhaust gases of a motor vehicle equipped with a gasoline engine and an exhaust gas treatment system comprising such catalyst up stream of a gasoline particulate filter (GPF).
June 5, 2013
May 7, 2015
UMICORE AG & CO. KG
Raoul Klingmann, Joel Despres, Martin Roesch, Joerg-Michael Richter, Stephanie Spiess
Abstract: The present invention is directed to a pollutant abatement system for vehicles propelled by a gasoline combustion engine, in particular a gasoline direct injection engine (GDI). In addition, this invention is concerned with a process of mitigating noxious compounds in the exhaust of such an engine efficiently by applying the inventive abatement system to fulfill future legislative exhaust regulations.