IP Library Granted Patent US 10,494,451
Granted Patent B2
US 10,494,451 · App. 15/648,006 · Granted Dec 3, 2019

Chitosan-derivative compounds and methods of controlling microbial populations

Inventors: Shenda M. Baker (Upland, CA); William P. Wiesmann (Washington, DC)
Assignee: SYNEDGEN, INC.
C08B37/003A61K8/736A61K31/722A61L2/232A61L2/235A61Q11/00A61Q17/005C08L5/08A61L2202/23A61L2202/24Y02A50/473Y02A50/475Y02A50/481Y02A50/483
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Quick Facts
Patent No.
US 10,494,451
App. No.
15/648,006
Granted
Dec 3, 2019
Kind
B2
Abstract

The present invention is directed to chitosan-derivative compounds and structures, methods of making chitosan-derivative compounds and methods for controlling, inhibiting and enhancing microbial populations in a variety of environments. The present invention is also directed to the control, inhibition and enhancement of microbial populations in animals, particularly humans. The microbial populations include bacteria, viruses and other pathogens where control of microbial populations are a necessity. The chitosan-derivative compounds of the present invention include chitosan-arginine compounds, related chitosan-L/D unnatural amino acid compounds, chitosan-acid amine compounds, chitosan-L/D natural amino acid derivative compounds, co-derivatives of the chitosan-derivative compounds, salts of the chitosan derivative compounds, and chitosan-guanidine compounds.

Claims (16)

1. A chitosan-derivative compound for controlling microbial populations comprising:

where m is 0.02-0.50; q is 0.50-0.01; p+q+m=1; and X″ is selected from the group consisting of:

 where r is 1-6.

2. The compound as recited in claim 1 , wherein said microbial populations comprise bacteria, mycobacteria, mycoplasma, viruses, protozoas and prions.

3. The compound as recited in claim 2 , wherein said bacteria comprise Gram-negative bacteria selected from the group consisting of Escherichia coli, Pseudomonas aeruginosa, Pseudomonas fluorescens, Acinetobacter baumannii, Klebsiella pneumoniae, Shigella flexneri, Salmonella typhi , and Proteus mirabilis.

4. The compound as recited in claim 2 , wherein said bacteria comprise Gram-positive bacteria selected from the group consisting of Bacillus subtilis, Staphlococcus aureus, Staphlococcus epidermidis, Streptococcus mutans and Streptococcus pyogenes.

5. The compound as recited in claim 2 , wherein said viruses are selected from the group consisting of vaccinia virus (Copenhagen strain), herpes simplex 1 (sp7 strain) and encephalomycocarditis virus.

6. The compound as recited in claim 2 , wherein said viruses is influenza A (H1, N1).

7. The compound as recited in claim 1 , wherein said microbial populations are in animals.

8. The compound as recited in claim 1 , wherein said microbial populations are in humans.

9. The compound as recited in claim 1 , wherein the compound has a molecular weight between 25,000 and 350,000 Da.

10. The compound as recited in claim 1 , wherein the compound is formed into soluble powers, films, coatings, gels, laminates, nanoparticles, woven fibers, non-woven fibers, and encapsulated compounds.

11. A chitosan-derivative compound for controlling microbial populations comprising:

where a=1; m is 0.02-0.50; q is 0.50-0.01; s=1; p+q+m=1; and X″ is selected from the group consisting of:

 where r is 1-6,

wherein Z is selected from the group consisting of chloride, hydroxide, phosphate, carbonate, acetate, lactate, citrate, cinnamate, oxalate, and glutamate.

Assignments (2)
CONFIRMATORY LICENSE Recorded Jan 20, 2023
From: SYNEDGEN, INC
To: UNITED STATES GOVERNMENT
Reel/Frame 062439/0921 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 15, 2017
From: BAKER, SHENDA M.; WIESMANN, WILLIAM P.
To: SYNEDGEN, INC.
Reel/Frame 043014/0122 →
Continuity (7)
Continuation 14684017 · Apr 10, 2015
Continuation 14153699 · Jan 13, 2014
Continuation 13324461 · Dec 13, 2011
Continuation 11657382 · Jan 24, 2007
Provisional Application 60838780 · Aug 18, 2006
Provisional Application 60810591 · Jun 2, 2006
Related Publication 20180127518A1 · May 10, 2018
Cited By (2)
US 12,465,616 US 12,533,375