US Patent 7279094 Chromatography methods and chromatography apparatus

Patent 7279094 was granted and assigned to Pall (funeral) on October, 2007 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Pall (funeral)

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7279094

Patent Inventor Names

Martin John Hofmann0

Date of Patent

October 9, 2007

Patent Application Number

11088567

Date Filed

March 24, 2005

Patent Primary Examiner

‌

Ernest G. Therkorn

Patent abstract

Ultrasound transceivers (20) are distributed up the side wall of a chromatography column (1) and enable tracking of the progress of a rising bed front (5) during packing. Comparison with a predetermined stored profile is used for feedback control of the packing pump P. Other uses of ultrasound monitoring of the column interior are disclosed.