Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Robin Ziebarth0
Date of Patent
May 24, 2011
0Patent Application Number
119542830
Date Filed
December 12, 2007
0Patent Primary Examiner
Patent abstract
An improved ceramic honeycomb filter has at least one porous partition wall defining a channel that is (1) microstructurally different along the length of the channel, (2) microstructurally different than at least a portion of a partition wall defining another channel or (3) combination thereof. The improved filter may be used for filtering Diesel exhaust and may have reduced back pressure and equivalent soot capture efficiency compared to a filter without having said microstructural differences.
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