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US Patent 11779860 Fc binding proteins with cysteine in the C-terminal helical region

Patent 11779860 was granted and assigned to Repligen on October, 2023 by the United States Patent and Trademark Office.

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Contents

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Patent
Patent

Patent attributes

Patent Applicant
Repligen
Repligen
Current Assignee
Repligen
Repligen
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
11779860
Patent Inventor Names
Erik Fiedler
Ulrich Haupts
Date of Patent
October 10, 2023
Patent Application Number
16637323
Date Filed
August 6, 2018
Patent Citations
‌
US Patent 11014967 Alkaline stable Fc-binding proteins for affinity chromatography
‌
US Patent 10889615 Mutated immunoglobulin-binding polypeptides
‌
US Patent 8674073 Immunoglobulin affinity ligand
‌
US Patent 10513537 Separation matrix
‌
US Patent 10654887 Separation matrix
‌
US Patent 10703774 Separation method
‌
US Patent 10730908 Separation method
Patent Primary Examiner
‌
Ryan B Huang
CPC Code
‌
B01D 15/3804
Patent abstract

The present invention relates to Fc binding proteins comprising one or more domains with Cysteine in the C-terminal helical region. The invention further relates to affinity matrices comprising the Fc binding proteins of the invention. The invention also relates to a use of these Fc binding proteins or affinity matrices for affinity purification of immunoglobulins and to methods of affinity purification using the Fc binding proteins of the invention.

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