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. 18, 2004
Filed:
Sep. 28, 2001
Applicant:
Inventors:
Walter Best, Duren, DE;
Uwe Schumacher, Tonisvorst, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 4/600 ; B01D 4/642 ;
U.S. Cl.
CPC ...
B01D 4/600 ; B01D 4/642 ;
Abstract
The invention describes a filter device having filter elements ( through through through ) made of ceramic material which are combined into at least one filter element group ( ) in which the filter elements ( through through through ) lie side by side next to one another and can be flowed through in parallel, which is characterized in that only some of the filter elements ( ) of each filter element group ( ) have electrical terminals for connection with an electrical energy source, and at least that/those filter element(s) ( ) is/are made of electrically conductive ceramic material.