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. 09, 2019
Filed:
Aug. 22, 2013
GE Healthcare Bio-sciences Ab, Uppsala, SE;
Olle Bjernulf, Uppsala, SE;
GE Healthcare Bio-Sciences AB, Uppsala, SE;
Abstract
Method for controlling a liquid chromatography system comprising a system pump and a column in fluid communication with the system pump by a fluid flow path, the method comprising the steps: registering the system pressure at a flow path position close to the system pump, controlling the operation of the system pump in response to the registered system pressure, estimating a pre-column pressure based on the registered system pressure, the characteristics of the flow path, and the viscosity and flow-rate of the liquid in the system, and controlling the operation of the system pump in response to the estimated pre-column pressure.