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:
May. 20, 2014
Filed:
Aug. 16, 2004
Applicants:
Ralf Himmelreich, Langenfeld, DE;
Sabine Werner, Düsseldorf, DE;
Inventors:
Ralf Himmelreich, Langenfeld, DE;
Sabine Werner, Düsseldorf, DE;
Assignee:
Qiagen GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07H 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for isolating polynucleotides, such as DNA, RNA and hybrids thereof from an aqueous solution containing polynucleotides by reversibly binding the polynucleotides to silica-coated magnetic particles in the presence of a salt and non-ionic hydratable additive is disclosed. The salt and non-ionic hydratable additive concentrations are adjusted to levels that result in adhesion of the nucleic acid to the particles without degradation or precipitation of the nucleic acid.