Etching a substrate: processes – Etching to produce porous or perforated article
Reexamination Certificate
2007-03-06
2007-03-06
Shaver, Kevin (Department: 3752)
Etching a substrate: processes
Etching to produce porous or perforated article
C239S136000, C239S533200, C239S585100, C239S005000, C239S462000
Reexamination Certificate
active
10405483
ABSTRACT:
A method for producing a filter element includes forming longitudinal ducts extending between upstream and downstream surfaces of the filter element, and installing a heating element for heating regions of walls of the ducts along longitudinal extent of the walls. The filter element is arranged inside an injection valve of an internal combustion engine.
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Guettler Herbert
Holder Eberhard
Kroetz Gerhard
Matt Martin
Pfeffer Viktor
Crowell & Moring LLP
Daimler-Chrysler AG
Hogan James S.
Shaver Kevin
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