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:
Jan. 28, 2003
Filed:
Oct. 13, 1998
Applicant:
Inventors:
Günter Grauer, Gernsbach, DE;
Yves Le Brech, Scaer, FR;
Assignee:
PAPCEL - Papier und Cellulose, Technologie, Und Handels-GmbH, Gernsbach, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 2/911 ;
U.S. Cl.
CPC ...
B01D 2/911 ;
Abstract
The invention concerns a filter material characterized in that it is impregnated with an amphiphilic substance or with a hydrophilic and a hydrophobic substance to control the water wettability and water absorption.