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. 28, 2015
Filed:
Apr. 07, 2010
Andreas Lundin, Vänge, SE;
Juha Esala, Vattholma, SE;
Andreas Lundin, Vänge, SE;
Juha Esala, Vattholma, SE;
BIOTAGE AB, Uppsala, SE;
Abstract
A chromatography column comprises a tubular member () having an open inlet end and an outlet end and being adapted to receive a packing material, and an end piece () inserted through the inlet end of the tubular member (). The end piece () comprises a generally planar inner end portion, and a rounded outer end portion (), adapted to accommodate pressure forces acting on the inner end. The end piece () is fixed to the inner surface of the tubular member () by a weld- or bond-forming joining technique based on non-contact energy transfer, preferably laser welding. A method for manufacturing a pre-packed chromatography column is also disclosed.