Patents by Inventor Junzhong Li

Junzhong Li 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: 20210244025
    Abstract: Antimicrobial compositions including at least one acid and at least one anionic surfactant are provided. In particular, food contact antimicrobial compositions including at least one acid and at least one anionic surfactant provide a no-rinse compositions efficacious against Norovirus, having acceptable use solution pH that do not require use of personal protective equipment (PPE), are surface compatible and do not leave residues on treated surfaces are provided. Methods of cleaning a surface with the compositions are also provided.
    Type: Application
    Filed: April 29, 2021
    Publication date: August 12, 2021
    Inventors: Catherine Hanson, Junzhong Li, David D. McSherry, Stacy Fawbush, Kaitlin Lake, Gerard Hinrichs, Joshua Luedtke, Richard Staub, Derrick Anderson
  • Publication number: 20210246401
    Abstract: Stabilized peroxide-containing compositions stabilized with urea and urea/chelator stabilizer blends are provided. The compositions are particularly suitable for, but not limited to, cleaning applications on surfaces within food and beverage industries which may require the use of materials that are acceptable for incidental food/food products/feed contact. Further, the stabilized compositions are particularly suitable for applications requiring materials that are generally regarded as safe (GRAS) or for applications where non-GRAS materials must be minimized. Methods of stabilizing peroxide-containing compositions and methods of using the compositions are also provided.
    Type: Application
    Filed: February 12, 2021
    Publication date: August 12, 2021
    Inventors: Chris Nagel, Junzhong Li
  • Publication number: 20210238135
    Abstract: Peroxyhydroxycarboxylic acid forming compositions and methods for forming peroxyhydroxycarboxylic acids, preferably in situ, using the peroxyhydroxycarboxylic acid forming compositions are disclosed. Methods of using the peroxyhydroxycarboxylic acids, including for treating a surface or a target in need of antimicrobial or sanitizing treatment are also disclosed. Particular applications of using odor-free, low volatility peroxyhydroxycarboxylic acid sanitizers for direct food contact are disclosed.
    Type: Application
    Filed: January 29, 2021
    Publication date: August 5, 2021
    Inventors: Junzhong Li, Allison Prideaux, Richard Staub
  • Patent number: 11071301
    Abstract: A method for removing or preventing a microbial growth, biofilm, biomass and/or mineral deposit on a hard surface inside an SO2 scrubber is disclosed. In particular, biocide compositions may be dosed in pulse or continuously for the reduction and prevention of biofilms on the hard surfaces inside an SO2 scrubber. A biocide composition disclosed here uses one or more non-oxidizing biocides, especially a mixture of one or more quaternary ammonium compounds and one or more other biocides.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: July 27, 2021
    Assignee: Ecolab USA Inc.
    Inventors: Junzhong Li, Chris Nagel, Laura Rice
  • Patent number: 11040902
    Abstract: Methods of employing peroxycarboxylic acid compositions for the prevention of scale formation and in some embodiments the removal of existing scale are disclosed. In particular, the scale inhibition properties of percarboxylic acids of varying chain lengths including C1-C22 provide effective scale inhibition and scale removal or destruction. Methods of employing peroxycarboxylic acid compositions for scale inhibition and/or removal are particularly well suited for treating fluids intended to flow through pipes, namely in the energy industry, water and paper industries, etc. The methods provide suitable scale inhibition replacements and/or additives to known scale inhibitors.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: June 22, 2021
    Assignee: Ecolab USA Inc.
    Inventors: Ramakrishnan Balasubramanian, Brian Epps, Junzhong Li, Richard Staub, Victor Keasler
  • Publication number: 20210176986
    Abstract: Virucidal compositions including at least one acid and an alpha olefin sulfonate anionic surfactant are provided. In particular, virucidal efficacy against Murine Norovirus is provided at improved efficacy rates beyond comparative anionic surfactants. Methods of using a virucidal composition are also provided.
    Type: Application
    Filed: December 16, 2020
    Publication date: June 17, 2021
    Inventors: Catherine Hanson, Junzhong Li, Jonathan Scott Killeen, Lisa A. Hellickson
  • Patent number: 11026421
    Abstract: Highly acidic, stabilized peroxycarboxylic acid compositions are disclosed as having both improved antimicrobial efficacy in comparison to conventional peroxyoctanoic acid and peroxyacetic acid compositions for sanitizing applications, and improved transport and shipping stability. In particular, low odor and low/no VOC compositions having dual functionality as both acid wash and sanitizing compositions are disclosed.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: June 8, 2021
    Assignee: Ecolab USA Inc.
    Inventors: Junzhong Li, David D. McSherry, Richard Staub
  • Patent number: 11026420
    Abstract: Peroxyformic acid compositions for treatment and removal of biofilm growth and mineral deposits on membranes for energy services applications are disclosed. In particular, peroxyformic acid compositions are generated in situ or on site generation for the reduction and prevention, of biofilms and the mitigation of mineral buildup on the membranes. The compositions according to the invention are compatible with the membranes under application of use conditions.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: June 8, 2021
    Assignee: Ecolab USA Inc.
    Inventors: Junzhong Li, Cynthia Bunders, Richard Staub, Paul Frazer Schacht, Caleb Power, Ramakrishnan Balasubramanian, Robert J. Ryther, Catherine Hanson
  • Patent number: 11026422
    Abstract: Antimicrobial compositions including at least one acid and at least one anionic surfactant are provided. In particular, food contact antimicrobial compositions including at least one acid and at least one anionic surfactant provide a no-rinse compositions efficacious against Norovirus, having acceptable use solution pH that do not require use of personal protective equipment (PPE), are surface compatible and do not leave residues on treated surfaces are provided. Methods of cleaning a surface with the compositions are also provided.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: June 8, 2021
    Assignee: Ecolab USA Inc.
    Inventors: Catherine Hanson, Junzhong Li, David D. McSherry, Stacy Fawbush, Kaitlin Lake, Gerard Hinrichs, Joshua Luedtke, Richard Staub, Derrick Anderson
  • Patent number: 11015151
    Abstract: The present invention relates to novel sulfoperoxycarboxylic acid compounds, and methods for making and using them. The sulfoperoxycarboxylic compounds of the invention are storage stable, water soluble and have low to no odor. Further, the compounds of the present invention can be formed from non-petroleum based renewable materials. The compounds of the present invention can be used as antimicrobials, and bleaching agents. The compounds of the present invention are also suitable for use as coupling agents.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: May 25, 2021
    Assignee: Ecolab USA Inc.
    Inventors: Junzhong Li, Richard K. Staub, David D. McSherry, Keith G. LaScotte, Steven J. Lange, Frank Everts
  • Publication number: 20210063365
    Abstract: A composition, method and kit for quantifying the concentration of one peracid or the total concentration of two or more peracids in a water source are disclosed. In particular, an oxidation sensitive or peroxycarboxylic acid selective leuco dye is used to react only with one or more peroxycarboxylic acids in a water source but not with peroxide usually co-existing in the water source. Not only does the oxidation sensitive or peroxycarboxylic acid selective leuco dye react with peracid(s) but also the reaction generates a color species that can be used visually or through absorbance measurement to quantify the peracid concentration. The method disclosed here is not a titration method, it involves a simple mixing step. The kit or composition disclosed here does not utilize a catalyst, such as iodine.
    Type: Application
    Filed: November 12, 2020
    Publication date: March 4, 2021
    Inventors: Ramakrishnan Balasubramanian, Junzhong Li
  • Publication number: 20210037818
    Abstract: Stabilized peroxycarboxylic acid compositions and the solid supported peracid stabilizers are provided. Methods of producing the solid supported peracid stabilizers are provided. The solid supported peracid stabilizers and the stable peroxycarboxylic acid compositions are particularly suitable for use in sanitizing equipment and surfaces to reduce yeasts, spores and bacteria, including those having contact with food, food products and/or components thereof, which require or benefit from infection control suitable for direct contact with such food sources.
    Type: Application
    Filed: August 7, 2020
    Publication date: February 11, 2021
    Inventors: Ashish Dhawan, Junzhong Li, David D. McSherry, Carter M. Silvernail, Chris Nagel
  • Publication number: 20210029996
    Abstract: The present invention relates generally to peroxyformic acid forming compositions, methods for forming peroxyformic acid, preferably in situ, using the peroxyformic acid forming compositions. The present invention also relates to the peroxyformic acid formed by the above compositions and methods. The present invention further relates to the uses of the peroxyformic acid, preferably in situ, for treating a surface or a target. The present invention further relates to methods for treating a biofilm using peroxyformic acid, including peroxyformic acid generated in situ.
    Type: Application
    Filed: October 9, 2020
    Publication date: February 4, 2021
    Inventors: Junzhong Li, Allison Brewster, Richard Staub, Steven J. Lange, Taz Cheritu, Jonathan P. Fast, Catherine Hanson
  • Patent number: 10899707
    Abstract: The present invention relates generally to methods for forming peroxyformic acid, comprising contacting formic acid with hydrogen peroxide. The methods for forming peroxyformic acid can include adding formic acid with a relatively lower concentration of hydrogen peroxide, or adding formic acid to a peroxycarboxylic acid composition or forming composition to react with hydrogen peroxide in the compositions. The present invention also relates to peroxyformic acid formed by the above methods. The present invention further relates to the uses of peroxyformic acid for treating a variety of targets, e.g., target water, including target water used in connection with oil- and gas-field operations. The present invention further relates to methods for reducing or removing H2S or iron sulfide in the treated water source, improving clarity of the treated water source, or reducing the total dissolved oxygen or corrosion in the treated water source, using peroxyformic acid, including peroxyformic acid generated in situ.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: January 26, 2021
    Assignee: Ecolab USA Inc.
    Inventors: Ramakrishnan Balasubramanian, Junzhong Li, Richard Staub, Victor Keasler, Brian Bennett, Allison Brewster
  • Publication number: 20210015096
    Abstract: Methods and systems for temperature-controlled, on-site generation of peracids, namely peroxycarboxylic acids and peroxycarboxylic acid forming compositions are disclosed. In particular, methods for using an adjustable biocide formulator or generator system overcome the limitations of temperature on the kinetics of the peracid generation and/or peracid decomposition inside an adjustable biocide formulator or generator system. The methods include the controlling of the temperature of at least one raw starting material, namely water, to improve upon methods of on-site generation of peracids. The methods allow for the generation of user-selected chemistry without regard to the ambient temperatures of the raw starting materials and/or the biocide formulator or generator system.
    Type: Application
    Filed: October 6, 2020
    Publication date: January 21, 2021
    Inventors: Brandon Herdt, Richard Staub, Thomas C. Rustad, Junzhong Li, David D. McSherry, Paul R. Kraus, Richard Walsh
  • Patent number: 10893674
    Abstract: Highly acidic, stabilized peroxycarboxylic acid compositions are disclosed as having both improved antimicrobial efficacy in comparison to conventional peroxyoctanoic acid and peroxyacetic acid compositions for sanitizing applications, and improved transport and shipping stability. In particular, low odor and low/no VOC compositions having dual functionality as both acid wash and sanitizing compositions are disclosed.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: January 19, 2021
    Assignee: Ecolab USA Inc.
    Inventors: Junzhong Li, David D. McSherry, Richard Staub
  • Publication number: 20210010047
    Abstract: This disclosure relates to the technological field of nutrient food, particularly relates to a method for preparing active protein hydrolysates by hydrolyzing cereal proteins with malt together with proteases, including the following steps: (1) grinding the malt, obtaining the malt flour; (2) hydrolyzing cereal proteins with the malt flour together with proteases to prepare active protein hydrolysates. The present invention uses the malt flour together with proteases to hydrolyze cereal proteins, which can effectively reduce the consumption of proteases and save the cost, moreover, aminopeptidases and carboxypeptidases in the malt are able to hydrolyze peptide linkages from the ends of proteins, and the bitter hydrophobic amino acids are cut off, thus effectively decreasing the bitterness of the products, on the other hand, which can increase the additional values of the malt, providing its new applications.
    Type: Application
    Filed: April 9, 2020
    Publication date: January 14, 2021
    Inventors: Xiaolan Liu, Xiqun Zheng, Junzhong Li, Mingyang Song
  • Publication number: 20200392433
    Abstract: Liquid peroxycarboxylic acid laundry compositions, namely bleaching and disinfecting compositions combining mixed peroxycarboxylic acids to provide synergistic efficacy are disclosed. Methods of using the liquid peroxycarboxylic acid laundry compositions for low temperatures and a use pH with detergent and water from about 6 to about 10 are also disclosed. Beneficially, the liquid peroxycarboxylic acid laundry compositions and methods of using the same do not include sulfonated peroxycarboxylic acids and sulfonated carboxylic acid, such as peroxy sulfonated oleic acid/sulfonated oleic acid (PSOA/SOA).
    Type: Application
    Filed: June 17, 2020
    Publication date: December 17, 2020
    Inventors: Junzhong Li, Allison Prideaux, David Dotzauer, Jonathan P. Fast, Richard K. Staub
  • Patent number: 10866223
    Abstract: A composition, method and kit for quantifying the concentration of one peracid or the total concentration of two or more peracids in a water source are disclosed. In particular, an oxidation sensitive or peroxycarboxylic acid selective leuco dye is used to react only with one or more peroxycarboxylic acids in a water source but not with peroxide usually co-existing in the water source. Not only does the oxidation sensitive or peroxycarboxylic acid selective leuco dye react with peracid(s) but also the reaction generates a color species that can be used visually or through absorbance measurement to quantify the peracid concentration. The method disclosed here is not a titration method, it involves a simple mixing step. The kit or composition disclosed here does not utilize a catalyst, such as iodine.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: December 15, 2020
    Assignee: Ecolab USA Inc.
    Inventors: Ramakrishnan Balasubramanian, Junzhong Li
  • Publication number: 20200378879
    Abstract: Peroxycarboxylic acid compositions comprising compatible ionic compounds to deliver conductivity signals to enable monitoring of the peroxycarboxylic acid concentration by conductivity when diluted for use are disclosed. Methods of measuring peroxycarboxylic acid concentration by conductivity are also disclosed. Beneficially, conductivity measurement allows a user to determine concentration of the peroxycarboxylic acid at a point of use without cumbersome titration steps to determine the concentration providing various benefits at an application of use.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 3, 2020
    Inventors: Junzhong Li, Caleb Power, Allison Prideaux, Richard K. Staub, Vaideeswaran Sivaswamy, John Paul Koehl