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:
Apr. 13, 2010
Filed:
Jun. 11, 2003
Applicants:
Bernd Huber, Kelheim, DE;
Robert Helstroom, Petersham, AU;
Inventors:
Bernd Huber, Kelheim, DE;
Robert Helstroom, Petersham, AU;
Assignees:
Commonwealth Scientific & Industrial Research Organisation, Campbell, AU;
Kelheim Fibres GmbH, Kelheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 39/00 (2006.01); B01D 39/16 (2006.01); B01D 71/42 (2006.01); B01D 53/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A filter comprising a polymer material comprising a polymer matrix such as polyacrylonitrile containing dispersed metal oxide particles. The metal oxide particles are for example ferric oxide particles, and the polymer material contains generally 0.25-3% by weight of these particles. The filters are resistant to thermo-oxidation and have reduced shrinkage or degradation.