The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 2007
Filed:
Sep. 28, 2004
Shan Shih, Troy, MI (US);
Egon Hassel, Rostock, DE;
Johannes Hartick, Annes, GB;
Winfried Willeke, Attendorn, DE;
Claus Gellermann, Stadthagen, DE;
Jose-luis Eguizabal, Navarra, ES;
Gregg Speer, Dachau, DE;
Markus Engelbertz, Attendorn, DE;
Shan Shih, Troy, MI (US);
Egon Hassel, Rostock, DE;
Johannes Hartick, Annes, GB;
Winfried Willeke, Attendorn, DE;
Claus Gellermann, Stadthagen, DE;
Jose-Luis Eguizabal, Navarra, ES;
Gregg Speer, Dachau, DE;
Markus Engelbertz, Attendorn, DE;
Arvin Technologies, Inc., Troy, MI (US);
Abstract
An exhaust gas system of a vehicular internal combustion engine comprises a plurality of exhaust gas catalytic converters having different working temperature ranges. Depending on the temperature of the exhaust gas the latter is directed to the one or those converters into whose working temperature range the exhaust gas temperature falls.