Patents by Inventor Xuanrong GUO

Xuanrong GUO 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).

  • Patent number: 11959045
    Abstract: The present invention is for an acidic cleaning composition which has excellent cleaning performance, low toxicity and good antimicrobial efficacy. The inventive acidic cleaning compositions are capable of sanitizing or disinfecting a variety of hard surfaces. The inventive acidic cleaning compositions can take a variety of forms, such as: disinfecting wipes, all-purpose disinfecting sprays, kitchen cleaners, bathroom cleaners, toilet cleaners, etc. The compositions may meet EPA DfE requirements, EPA category III or IV requirements, and/or be safe for use on food contact surfaces without rinsing. The compositions may include citric acid, an anionic surfactant, a non-volatile glycol solvent, a fatty acid, and water. The compositions may be free of other sanitizing acids, quaternary ammonium compounds, biguanides, peroxides, hypohalites, etc., and have a pH of less than 2.5. The composition may provide sanitization or disinfection against a target microbe within 5 minutes or less, or 4 minutes or less.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: April 16, 2024
    Assignee: THE CLOROX COMPANY
    Inventors: Xuanrong Guo, Barbara Ekerdt, David R. Scheuing, Nancy A. Falk
  • Patent number: 11932833
    Abstract: Peroxide treatment compositions for use in laundry capable of providing sanitization through the wash e.g., for use with a detergent, where a peroxide activator is stabilized without the presence of phosphorus-containing compounds (e.g., phosphorus-containing stabilizers), through use of a nonionic surfactant (e.g., alkoxylated alcohol) with a cloud point above 45° C. Use of a single nonionic surfactant, or a surfactant package that may include a small fraction (e.g., less than 0.5%) of sodium lauryl sulfate or another anionic surfactant has been found to be surprisingly effective at stabilizing the peroxide/activator combination, even where water content may be 85% or greater. The composition can have a pH of 5 or less (e.g., 3 to 4). The composition may be free of other anionic surfactants, cationic surfactants, zwitterionic surfactants, amphoteric surfactants, magnesium salts, borates and boric acid, hydroxides, chelating agents, various amine oxides, ethoxylated amines, and the like.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: March 19, 2024
    Assignee: THE CLOROX COMPANY
    Inventors: Nancy A. Falk, Timothy P. Mui, Evan Rumberger, Xuanrong Guo, Fanny Frausto, Michael Capracotta, Dennys D. Pena Calderon, David R. Scheuing, Claire E. J. Dentinger, Stephen F. Gross, Nicholas S. Norberg, Shakera Thamanna
  • Publication number: 20230301299
    Abstract: Cleaning compositions that include carvacrol, in an amount sufficient to provide an antimicrobial effect. For example, the compositions can include 0.1% to 2% by weight of carvacrol. The cleaning compositions advantageously further include a surfactant, particularly an anionic surfactant, which enhances the antimicrobial efficacy characteristics of the carvacrol. For example, the composition can include at least 0.1%, at least 0.3%, or at least 0.5% of one or more anionic surfactants. Alkyl sulfates (e.g., C8 to C12 alkyl sulfates) are particularly suitable. A buffer may also be present. The compositions may have a relatively high pH, e.g., 9 to 12. The cleaning composition may exhibit a significant log reduction against a target microorganism (e.g., Staphylococcus aureus and/or others) within a given time period (e.g., 10 minutes, 5 minutes, or the like), when used on a target surface.
    Type: Application
    Filed: March 6, 2023
    Publication date: September 28, 2023
    Inventors: Nancy A. FALK, Crystal BELL, William KING, Marjan HASHEMI, Nipa MODI, Keith MAINQUIST, Xuanrong GUO, Walter SCHENCK, Ronald Thomas ANDERSON, Kelly DICKSON, Miguel LOPEZ, Giselle JANSSEN, Bryan K. PARRISH, Claire DENTINGER, Thomas FAHLEN
  • Publication number: 20220259523
    Abstract: Peroxide treatment compositions for use in laundry capable of providing sanitization through the wash e.g., for use with a detergent, where a peroxide activator is stabilized without the presence of phosphorus-containing compounds (e.g., phosphorus-containing stabilizers), through use of a nonionic surfactant (e.g., alkoxylated alcohol) with a cloud point above 45° C. Use of a single nonionic surfactant, or a surfactant package that may include a small fraction (e.g., less than 0.5%) of sodium lauryl sulfate or another anionic surfactant has been found to be surprisingly effective at stabilizing the peroxide/activator combination, even where water content may be 85% or greater. The composition can have a pH of 5 or less (e.g., 3 to 4). The composition may be free of other anionic surfactants, cationic surfactants, zwitterionic surfactants, amphoteric surfactants, magnesium salts, borates and boric acid, hydroxides, chelating agents, various amine oxides, ethoxylated amines, and the like.
    Type: Application
    Filed: February 16, 2022
    Publication date: August 18, 2022
    Inventors: Nancy A. Falk, Timothy P. Mui, Evan Rumberger, Xuanrong Guo, Fanny Frausto, Michael Capracotta, Dennys D. Pena Calderon, David R. Scheuing, Claire E.J. Dentinger, Stephen F. Gross, Nicholas S. Norberg, Shakera Thamanna
  • Publication number: 20220056374
    Abstract: The present invention is for an acidic cleaning composition which has excellent cleaning performance, low toxicity and good antimicrobial efficacy. The inventive acidic cleaning compositions are capable of sanitizing or disinfecting a variety of hard surfaces. The inventive acidic cleaning compositions can take a variety of forms, such as: disinfecting wipes, all-purpose disinfecting sprays, kitchen cleaners, bathroom cleaners, toilet cleaners, etc. The compositions may meet EPA DfE requirements, EPA category III or IV requirements, and/or be safe for use on food contact surfaces without rinsing. The compositions may include citric acid, an anionic surfactant, a non-volatile glycol solvent, a fatty acid, and water. The compositions may be free of other sanitizing acids, quaternary ammonium compounds, biguanides, peroxides, hypohalites, etc., and have a pH of less than 2.5. The composition may provide sanitization or disinfection against a target microbe within 5 minutes or less, or 4 minutes or less.
    Type: Application
    Filed: August 19, 2021
    Publication date: February 24, 2022
    Inventors: Xuanrong GUO, Barbara EKERDT, David R. SCHEUING, Nancy A. FALK