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. 13, 2009
Filed:
Jan. 22, 2003
Amar Rida, Prilly, CH;
Olivier Elsenhans, Sins, CH;
Martin Gijs, Ecublens, CH;
Goran Savatic, Reussbühl, CH;
Amar Rida, Prilly, CH;
Olivier Elsenhans, Sins, CH;
Martin Gijs, Ecublens, CH;
Goran Savatic, Reussbühl, CH;
Roche Molecular Systems, Inc., Pleasanton, CA (US);
Abstract
An apparatus for retaining magnetic particles within a segment of a flow-through cell during flow of a fluid through the cell comprises (a) optionally, an electrical current source; (b) an electromagnet having a winding connected to the current source and an air gap between at least one pair of poles each of which has a corrugated outer surface and (c) a flow-through cell which is configured and dimensioned to receive an amount of magnetic particles to be retained within the flow-through cell and to allow flow of a liquid through the flow-through cell. The liquid carries molecules or particles to be captured by means of the magnetic particles. A portion of the flow-through cell is inserted in air gap.