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:
May. 28, 2013
Filed:
Apr. 13, 2009
Applicants:
Martin Risthaus, Dorsten, DE;
Hans-joachim Wönicker, Stuttgart, DE;
Inventors:
Martin Risthaus, Dorsten, DE;
Hans-Joachim Wönicker, Stuttgart, DE;
Assignee:
Evonik Degussa GmbH, Essen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B01D 46/00 (2006.01); B01D 39/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for producing a regenerable ceramic particulate filter for diesel vehicles is described, wherein a material comprising silicon-containing particles is pyrolyzed in the presence of a polyamide. The resulting particulate filters have a BET surface area of >350 m/l.