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US Patent 12122827 IL-21 polypeptides and targeted constructs

Patent 12122827 was granted and assigned to Asher Biotherapeutics on October, 2024 by the United States Patent and Trademark Office.

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Contents

Is a
Patent
Patent
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Patent attributes

Patent Applicant
Asher Biotherapeutics
Asher Biotherapeutics
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Current Assignee
Asher Biotherapeutics
Asher Biotherapeutics
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
121228270
Patent Inventor Names
Byong Kang0
Henry C. Nguyen0
Renee L. Greer0
Yik Andy Yeung0
Ivana Djuretic0
David Liu0
Date of Patent
October 22, 2024
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Patent Application Number
183074770
Date Filed
April 26, 2023
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Patent Citations
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US Patent 8034326 IL-21 variants
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US Patent 8211420 Interleukin-21 variants with altered binding to the IL-21 receptor
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US Patent 8383367 IL-21 variant nucleic acids
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US Patent 8822653 Plasma kallikrein binding proteins
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US Patent 9447159 Immunoconjugates
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US Patent 9850310 CD123 binding agents and uses thereof
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US Patent 10202464 Immunoconjugates
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US Patent 10316104 Immunoconjugates
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...
Patent Primary Examiner
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Jeffrey Stucker
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CPC Code
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C07K 2317/24
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C07K 16/40
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A61K 2039/505
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C07K 14/54
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A61P 35/00
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C07K 16/2815
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A61K 38/00
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Patent abstract

The present disclosure provides methods and compositions comprising IL-21 polypeptides, targeted cytokine construct that selectively activates target immune cells (e.g., CD8+ T cells) over other immune cell types. The cytokine of the present disclosure can further comprise mutations that alter its charge distribution to improve its half-life within the blood.

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