| Patent Number |
Title Of Patent |
Date Issued |
| 8007750 |
Multilayered catalyst compositions |
August 30, 2011 |
| A layered, three-way conversion catalyst having the capability of simultaneously catalyzing the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides is disclosed. Methods of making and using the same are also provided. In one or more embodiments, the cat |
| 7749472 |
Phosgard, a new way to improve poison resistance in three-way catalyst applications |
July 6, 2010 |
| The present invention provides for novel poisoning-resistant catalysts used for automobile exhaust gas treatment systems. To alleviate the detrimental affects of engine oil and/or fuel additive poisoning the present invention provides for an overcoat layer comprising a porous refract |
| 7678347 |
High phosphorous poisoning resistant catalysts for treating automobile exhaust |
March 16, 2010 |
| The present invention discloses novel catalysts for treating automobile exhaust that have increased resistance to poisoning from oil- and/or fuel-derived additives. In the catalysts of this invention, the catalytic materials are not coated onto a front-end poison capture zone of the |
| 7501098 |
Exhaust gas treatment catalyst |
March 10, 2009 |
| Provided are an exhaust treatment catalyst and an exhaust article containing the catalyst. The catalyst comprises a carrier; a first layer deposited on the carrier, said first layer comprising substantially only at least one refractory metal oxide; a second layer deposited on the fir |
| 7374729 |
Exhaust gas treatment catalyst |
May 20, 2008 |
| Provided are an exhaust treatment catalyst and an exhaust article containing the catalyst. The catalyst comprises: (a) a carrier; (b) a first layer deposited on the carrier, said first layer comprising substantially only at least one refractive metal oxide; (c) a second layer depos |
