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. 14, 2001
Filed:
Jun. 19, 1997
Process and device for the isolation of cell components, such as nucleic acids, from natural sources
Metin Colpan, Essen, DE;
Qiagen GmbH, Hilden, DE;
Abstract
A filtration process for the preparation of nucleic acids from natural sources is disclosed. The sources containing nucleic acids are lysed; the lysate is left to rest for some time; the resulting lysate passes a filter layer. The filter layer is selected from silica gel, aluminum oxide or packed diatomaceous earth, or interwoven or cemented non-wovens of glass fibers and silica gel. Other filter layers include cellulose, paper, compressed paper, and paper non-wovens. The fraction leaving the filter layer is then collected and the nucleic acid is subsequently isolated and purified from the collected fraction. Furthermore, the filter layer has not been modified with anion exchange groups.