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:
Aug. 02, 2022
Filed:
Jun. 27, 2017
Applicant:
Mahle International Gmbh, Stuttgart, DE;
Inventors:
Eva Boendel, Stuttgart, DE;
Hein Martin, Stuttgart, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 46/00 (2022.01); B01J 41/04 (2017.01); B01D 39/16 (2006.01); B60H 3/06 (2006.01);
U.S. Cl.
CPC ...
B01D 46/0028 (2013.01); B01J 41/04 (2013.01); B01D 39/1623 (2013.01); B01D 2239/0442 (2013.01); B01D 2239/10 (2013.01); B60H 3/0658 (2013.01);
Abstract
A coating solution for producing a biofunctional surface coating and/or depth coating of a filter medium may include a solvent, an anti-pathogenic substance, an ion exchanger, and a polymeric cross-linking agent. The ion exchanger may be hygroscopic and may include functional cation exchanger groups with sulphonic acid groups.