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:
Oct. 23, 2001
Filed:
Sep. 16, 1998
Applicant:
Inventors:
William H. Daly, Baton Rouge, LA (US);
Melissa A. Manuszak-Guerrini, Baton Rouge, LA (US);
Assignee:
Board of Supervisors of Louisiana State University and Agricultural and Mechanical College, Baton Rouge, LA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N 4/304 ;
U.S. Cl.
CPC ...
A01N 4/304 ;
Abstract
3-trimethylammonium-2-hydroxypropyl-N-chitosan (CHI-Q188) and related chitosan derivatives exhibit antimicrobial activity at concentrations as low as 10-20 &mgr;g/mL, an order of magnitude lower than the concentrations at which any previous chitosan derivative has been reported to exhibit antimicrobial activity. These compounds may be used as preservatives in cosmetic formulations, and as antimicrobial pharmaceutical agents.