Patents by Inventor Charles V. Rice

Charles V. Rice has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230172971
    Abstract: Compositions, kits, and methods of use of branched poly(ethylenimine) (BPEI) compounds, including polyethylene glycol (PEG)-branched poly(ethylenimine) conjugates (PEG-BPEI) for treatment of diseases, bacterial infections, bacterial biofilms, and conditions associated with inflammation, including wounds.
    Type: Application
    Filed: April 29, 2021
    Publication date: June 8, 2023
    Inventor: CHARLES V. RICE
  • Publication number: 20210260101
    Abstract: Compositions of ?-lactam antibiotics and branched poly(ethylenimine) (BPEI), and ?-lactam antibiotics and potentiating compounds of polyethylene glycol (PEG)-BPEI conjugates, and methods of their use to treat infections and to remove bacterial biofilms from surfaces of devices and wounds. The BPEI and PEG-BPEI conjugates potentiate the activity of the ?-lactam antibiotics so the compositions have synergistic effects against various Gram-positive bacteria. For example, the compositions can be used to treat Gram-positive bacteria, such as Methicillin-resistant Staphylococcus aureus (MRSA) and Methicillin-resistant Staphylococcus epidermidis (MRSE), that have developed resistance against most ?-lactam antibiotics. The BPEI and PEG-BPEI conjugates result in the resensitization of such resistant bacterial strains to traditional antibiotic therapies such as ?-lactam antibiotics.
    Type: Application
    Filed: April 15, 2021
    Publication date: August 26, 2021
    Inventors: Charles V. Rice, Daniel T. Glatzhofer
  • Publication number: 20210205352
    Abstract: The present disclosure describes compositions comprising ?-lactam antibiotics and branched polyethylenimines (BPEI), having efficacy against various Gram-positive bacteria, for example Gram-positive bacteria having resistance against ?-lactam antibiotics. The compositions result in the resensitization of such resistant bacterial strains to traditional antibiotic therapies such as cephem ?-lactam antibiotics.
    Type: Application
    Filed: March 22, 2021
    Publication date: July 8, 2021
    Inventor: Charles V. Rice
  • Patent number: 10953040
    Abstract: The present disclosure describes compositions comprising ?-lactam antibiotics and branched polyethylenimines (BPEI), having efficacy against various Gram-positive bacteria, for example Gram-positive bacteria having resistance against ?-lactam antibiotics, one non-limiting example of which is Methicillin-resistant Staphylococcus aureus (MRSA). The compositions result in the resensitization of such resistant bacterial strains to traditional antibiotic therapies such as ?-lactam antibiotics.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: March 23, 2021
    Assignee: The Board of Regents of the University of Oklahoma
    Inventor: Charles V. Rice
  • Publication number: 20190358256
    Abstract: The present disclosure describes compositions comprising ?-lactam antibiotics and branched polyethylenimines (BPEI), having efficacy against various Gram-positive bacteria, for example Gram-positive bacteria having resistance against ?-lactam antibiotics, one non-limiting example of which is Methicillin-resistant Staphylococcus aureus (MRSA). The compositions result in the resensitization of such resistant bacterial strains to traditional antibiotic therapies such as ?-lactam antibiotics.
    Type: Application
    Filed: August 2, 2019
    Publication date: November 28, 2019
    Inventor: Charles V. Rice
  • Publication number: 20180169140
    Abstract: The present disclosure describes compositions comprising ?-lactam antibiotics and branched poly-ethylenimines (BPEI), having efficacy against various Gram-positive bacteria, for example Gram-positive bacteria having resistance against ?lactam antibiotics, one non-limiting example of which is Methicillin-resistant Staphylococcus aureus (MRSA). The compositions result in the resensitization of such resistant bacterial strains to traditional antibiotic therapies such as ?-lactam antibiotics.
    Type: Application
    Filed: June 16, 2016
    Publication date: June 21, 2018
    Inventor: Charles V. Rice