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:
Jan. 07, 2025
Filed:
Oct. 22, 2020
Applicant:
Howard University, Washington, DC (US);
Inventors:
James W. Mitchell, Durham, NC (US);
Dazhi Yang, Gaithersburg, MD (US);
Assignee:
Howard University, Washington, DC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 31/785 (2006.01); A61K 9/14 (2006.01); A61K 31/738 (2006.01); A61P 7/08 (2006.01); B01J 20/26 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); C08B 15/06 (2006.01); C08F 251/02 (2006.01); C08G 73/02 (2006.01); C08G 81/00 (2006.01); C08G 83/00 (2006.01); C08J 9/16 (2006.01); C08L 1/08 (2006.01); C08L 3/20 (2006.01); C08L 5/02 (2006.01); C08L 5/08 (2006.01); C08G 101/00 (2006.01);
U.S. Cl.
CPC ...
A61K 31/785 (2013.01); A61K 9/14 (2013.01); A61K 31/738 (2013.01); A61P 7/08 (2018.01); B01J 20/264 (2013.01); B01J 20/267 (2013.01); B01J 20/28004 (2013.01); B01J 20/28078 (2013.01); B01J 20/28085 (2013.01); B01J 20/3085 (2013.01); C08B 15/06 (2013.01); C08F 251/02 (2013.01); C08G 73/0206 (2013.01); C08G 81/00 (2013.01); C08G 83/002 (2013.01); C08J 9/16 (2013.01); C08L 1/08 (2013.01); C08L 3/20 (2013.01); C08L 5/02 (2013.01); C08L 5/08 (2013.01); C08G 2101/00 (2013.01); C08G 2210/00 (2013.01); C08J 2205/022 (2013.01); C08J 2207/10 (2013.01); C08J 2387/00 (2013.01);
Abstract
Covalently cross-linked copolymers are described herein. More specifically, polysaccharide-polyamine copolymeric matrices or structures and cationic copolymeric matrices are described herein. The polysaccharide-polyamine copolymers, when protonated, can form cationic copolymeric matrices having exceptionally high densities of cationic sites. In one form, the covalently cross-linked copolymers provide a three-dimensional structure, especially when hydrated.