(12) United States Patent (10) Patent No.: US 9,662.400 B2 Smith Et Al
USOO9662400B2 (12) United States Patent (10) Patent No.: US 9,662.400 B2 Smith et al. (45) Date of Patent: *May 30, 2017 (54) METHODS FOR PRODUCING A (2013.01); C08B 37/003 (2013.01); C08L 5/08 BODEGRADABLE CHITOSAN (2013.01); A6 IK 38/00 (2013.01); A61 L COMPOSITION AND USES THEREOF 2300/404 (2013.01) (58) Field of Classification Search (71) Applicant: University of Memphis Research CPC ...... A61K 47/36; A61K 31/00; A61K 9/7007; Foundation, Memphis, TN (US) A61K 9/0024; A61 L 15/28: A61L 27/20; A61L 27/58: A61L 31/042; C08B 37/003 (72) Inventors: James Keaton Smith, Memphis, TN USPC ................................ 514/23, 40, 777; 536/20 (US); Ashley C. Parker, Memphis, TN See application file for complete search history. (US); Jessica A. Jennings, Memphis, (56) References Cited TN (US); Benjamin T. Reves, Memphis, TN (US); Warren O. U.S. PATENT DOCUMENTS Haggard, Bartlett, TN (US) 4,895,724. A * 1/1990 Cardinal .............. A61K9/0024 424,278.1 (73) Assignee: The University of Memphis Research 5,541,233 A 7/1996 Roenigk Foundation, Memphis, TN (US) 5,958,443 A 9/1999 Viegas et al. 6,699,287 B2 3/2004 Son et al. (*) Notice: Subject to any disclaimer, the term of this 6,989,157 B2 1/2006 Gillis et al. patent is extended or adjusted under 35 7,371.403 B2 5/2008 McCarthy et al. 2003, OO15825 A1 1/2003 Sugie et al. U.S.C. 154(b) by 0 days. 2003/0206958 A1 11/2003 Cattaneo et al.
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