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. 29, 2002
Filed:
Feb. 07, 2002
Josef Burg, D-82362 Weilheim, DE;
Walter Schneider, D-82362 Weilheim, DE;
Alexander Wrba, D-82377 Penzberg, DE;
Werner Fürst, D-82377 Penzberg, DE;
Karl-Heinz Sellinger, D-82362 Weilheim, DE;
Other;
Abstract
A process for producing erythropoietin which is free of foreign animal proteins except for the proteins of the host cell, wherein DNA coding for EPO is expressed in a eukaryotic host cell and the host cell is cultured in a medium free of natural mammalian proteins. The erythropoietin is chromatographically purified using dye affinity chromatography, chromatography on hydroxyapatite, reversed phase chromatography, and anion exchange chromatography. The resulting preparation contains less than 100 ppm of proteins derived from the host cell, and less than 10 pg of host cell DNA per 83 &mgr;g erythropoietin.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile