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:
Apr. 29, 2008
Filed:
Feb. 04, 2002
Annemarie H. Ralston, Bethesda, MD (US);
Billy L. Kolen, Springdale, MD (US);
David John Hammond, Laytonsvile, MD (US);
Annemarie H. Ralston, Bethesda, MD (US);
Billy L. Kolen, Springdale, MD (US);
David John Hammond, Laytonsvile, MD (US);
American National Red Cross, Washington, DC (US);
Abstract
The present invention provides a method for purifying butyrylcholinesterase from various biological fluids. Biological fluids include, e.g., blood, blood fractions, plasma, and bioreactor broths, and other such mixtures containing butyrylcholinesterase. In one embodiment, the invention provides a method for the production of purified, virally inactivated butyrylcholinesterase by contacting a biological fluid containing butyrylcholinesterase with a cationic exchange chromatography material, with an affinity chromatography material, and treating the fluid with solvent detergent. The resulting purified butyrylcholinesterase can also be subjected to a pasteurization step, and formulated in a sodium chloride/sodium phosphate solution for storage or lyophilization.