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:
Jul. 18, 2017
Filed:
Feb. 22, 2013
Applicant:
Whatman Gmbh, Dassel, DE;
Inventors:
Klaus Hochleitner, Dassel, DE;
Suzana Kiel, Dassel, DE;
Assignee:
Whatman GmbH, Dassel, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 71/12 (2006.01); B01D 71/16 (2006.01); B01D 71/20 (2006.01); B01D 67/00 (2006.01); B01D 69/02 (2006.01); C12Q 1/24 (2006.01); G01N 1/40 (2006.01);
U.S. Cl.
CPC ...
B01D 71/12 (2013.01); B01D 67/0002 (2013.01); B01D 67/0086 (2013.01); B01D 67/0088 (2013.01); B01D 67/0095 (2013.01); B01D 69/02 (2013.01); B01D 71/16 (2013.01); B01D 71/20 (2013.01); C12Q 1/24 (2013.01); B01D 2325/08 (2013.01); B01D 2325/12 (2013.01); G01N 2001/4088 (2013.01);
Abstract
A membrane filteris disclosed comprising cellulous materialallowing the transition of fluid therethrough, and, in a substantially dry state, said membrane comprising also a salt of deoxycholic acid. Optionally, the air side of the membrane (the side facing away from the screen or belt used to manufacture the membrane) faces the sample fluid during use of the membrane. A method of manufacture of the membrane material is disclosed also, employing deoxycholic acid as a surfactant, to improve the recovery rate of the membrane filter in use.