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:
Oct. 09, 2007
Filed:
Feb. 12, 2003
Applicants:
Joseph Dussaud, Vienne, FR;
Leonie Bouvier, Beauvoir de Marc, FR;
Fabien Chevalier, Eyzin Pinet, FR;
Inventors:
Joseph Dussaud, Vienne, FR;
Leonie Bouvier, Beauvoir de Marc, FR;
Fabien Chevalier, Eyzin Pinet, FR;
Assignee:
Ahlstrom Research and Services, Pont Eveque, FR;
Primary Examiner:
Int. Cl.
CPC ...
B01D 39/06 (2006.01); B01D 39/20 (2006.01); B01J 21/06 (2006.01); B01D 50/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention concerns a filtering medium based on a photocatalytic agent and activated carbon, characterized in that it comprises a permeable support covered with a first layer based on activated carbon, then a separate second layer based on a photocatalytic agent, or vice versa. The invention also concerns a method for making such a filtering medium.