Multiple washcoats on filter substrate

Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C502S302000, C502S349000, C502S325000, C502S344000, C502S305000, C502S353000, C502S340000, C502S514000, C502S527120, C502S355000, C502S303000, C502S304000, C502S439000, C423S239100, C423S651000, C423S247000, C423S245300, C423S215500, C252S373000

Reexamination Certificate

active

07119044

ABSTRACT:
An integrated multi-functional catalyst system includes a diesel particulate filter having an inlet side for receiving flow and an opposite outlet side, a substrate in the diesel particulate filter having an interior wall surface and an exterior wall surface, a first washcoat layer applied to the interior wall surface and adjacent the inlet side, and a second washcoat layer applied to the exterior wall surface and adjacent the outlet side, wherein flow distribution through the substrate is dispersed for minimizing back pressure. The diesel particulate filter may be one of a plurality of honeycomb cells.

REFERENCES:
patent: 6365118 (2002-04-01), Kharas et al.
patent: 6391822 (2002-05-01), Dou et al.
patent: 6468484 (2002-10-01), Dou et al.
patent: 6497092 (2002-12-01), Theis
patent: 6508852 (2003-01-01), Hickman et al.
patent: 6770252 (2004-08-01), Cheng
patent: 2004/0116276 (2004-06-01), Yezerets et al.
patent: 2004/0116285 (2004-06-01), Huang et al.
patent: 0984142 (1998-04-01), None
patent: 0 942 157 (2002-05-01), None
patent: 1 270 886 (2003-01-01), None
patent: 1 286 028 (2003-02-01), None
patent: 1398069 (2003-08-01), None
patent: WO01/12320 (2001-02-01), None
European Search Report—Dated Oct. 5, 2004.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Multiple washcoats on filter substrate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multiple washcoats on filter substrate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple washcoats on filter substrate will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3701569

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.