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:
Nov. 11, 2008
Filed:
Oct. 27, 2003
Applicants:
Johannes Schaller, Leonberg, DE;
Markus Buerglin, Ditzingen, DE;
Ilona Ullmann, Korntal-Muenchingen, DE;
Gudrun Bieder, Denkendorf, DE;
Inventors:
Johannes Schaller, Leonberg, DE;
Markus Buerglin, Ditzingen, DE;
Ilona Ullmann, Korntal-Muenchingen, DE;
Gudrun Bieder, Denkendorf, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/92 (2006.01); B01D 53/94 (2006.01); B01J 19/00 (2006.01); F01N 3/08 (2006.01); F01N 3/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and a device for treatment of the exhaust of an internal combustion engine in which a fluid is used as an auxiliary agent for the treatment; a partial chemical conversion of the auxiliary agent is at least occasionally stimulated in order to produce a substance that reduces the freezing point of the fluid when the temperature of the fluid falls below a critical value.