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: 20240114904
    Abstract: Peroxyformic acid compositions for removal of biofilm growth and other contaminants and impurities from industrial processing hard surfaces are disclosed. In particular, peroxyformic acid compositions may be dosed on site and/or generated in situ for the reduction and prevention of biofilms on the hard surfaces. Methods of employing the peroxyformic acid compositions for removal of biofilm growth and other impurities such as aldehydes and alcohols from industrial CO2 effluent are also disclosed which beneficially provide ambient biofilm control and break down more rapidly than other peracids, allowing for extended runs between CIP cleaning, including a reduction and/or elimination of cleaning of the scrubbers and other industrial surfaces.
    Type: Application
    Filed: December 18, 2023
    Publication date: April 11, 2024
    Inventors: John Bolduc, Chris Nagel, Junzhong Li, Catherine Hanson, Peter Fernholz
  • Patent number: 11950595
    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: April 29, 2021
    Date of Patent: April 9, 2024
    Assignee: Ecolab USA Inc.
    Inventors: Catherine Hanson, Junzhong Li, David D. McSherry, Stacy Fawbush, Kaitlin Lake, Gerard Hinrichs, Joshua Luedtke, Richard Staub, Derrick Anderson
  • Publication number: 20240108769
    Abstract: A concentrated liquid sanitizing and rinse composition containing peroxycarboxylic acid(s) and compatible rinse aid surfactants is disclosed. The sanitizing and rinsing compositions are formulated in a single liquid concentrate, replacing a traditional dual product of a sanitizer and rinse aid. The sanitizing and rinsing chemistries are particularly effective at neutral pHs against gram negative organisms at elevated temperatures. Methods of using the concentrated liquid sanitizing and rinse composition are also disclosed.
    Type: Application
    Filed: December 4, 2023
    Publication date: April 4, 2024
    Inventors: Steven J. Lange, Junzhong Li, XIN SUN, Allison Brewster, Richard Staub
  • Patent number: 11939241
    Abstract: The present invention relates generally to stable percarboxylic acid compositions comprising, inter alia, at least two stabilizing agents, and various uses for water treatments, including water treatments in connection with oil- and gas-field operations. The present invention also relates to slick water compositions and gel based compositions that comprise stable percarboxylic acid compositions and the use thereof in oil- and gas-field operations.
    Type: Grant
    Filed: October 21, 2021
    Date of Patent: March 26, 2024
    Assignee: ECOLAB USA INC.
    Inventors: Junzhong Li, David McSherry, Allison Brewster, Richard Staub, Renato De Paula, John Wilhelm Bolduc, Robert J. Ryther, Victor V. Keasler
  • Patent number: 11937602
    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 efficacious virucidal activity, including 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. Methods of cleaning a surface with the compositions are also provided and may beneficially eliminate the need to rinse the antimicrobial compositions after use.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: March 26, 2024
    Assignee: ECOLAB USA INC.
    Inventors: Wendy Lo, Derrick Anderson, Erik Olson, Catherine Hanson, Junzhong Li, David D. McSherry, Stacy Fawbush, Kaitlin Lake, Gerard Hinrichs, Joshua Luedtke, Richard Staub
  • Publication number: 20240059651
    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: October 12, 2023
    Publication date: February 22, 2024
    Inventors: Junzhong Li, Allison Prideaux, Richard Staub
  • Patent number: 11905498
    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: Grant
    Filed: February 12, 2021
    Date of Patent: February 20, 2024
    Assignee: ECOLAB USA INC.
    Inventors: Chris Nagel, Junzhong Li
  • Patent number: 11882826
    Abstract: Peroxyformic acid compositions for removal of biofilm growth and other contaminants and impurities from industrial processing hard surfaces are disclosed. In particular, peroxyformic acid compositions may be dosed on site and/or generated in situ for the reduction and prevention of biofilms on the hard surfaces. Methods of employing the peroxyformic acid compositions for removal of biofilm growth and other impurities such as aldehydes and alcohols from industrial CO2 effluent are also disclosed which beneficially provide ambient biofilm control and break down more rapidly than other peracids, allowing for extended runs between CIP cleaning, including a reduction and/or elimination of cleaning of the scrubbers and other industrial surfaces.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: January 30, 2024
    Assignee: Ecolab USA Inc.
    Inventors: John Bolduc, Chris Nagel, Junzhong Li, Catherine Hanson, Peter Fernholz
  • Patent number: 11865219
    Abstract: A concentrated liquid sanitizing and rinse composition containing peroxycarboxylic acid(s) and compatible rinse aid surfactants is disclosed. The sanitizing and rinsing compositions are formulated in a single liquid concentrate, replacing a traditional dual product of a sanitizer and rinse aid. The sanitizing and rinsing chemistries are particularly effective at neutral pHs against gram negative organisms at elevated temperatures. Methods of using the concentrated liquid sanitizing and rinse composition are also disclosed.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: January 9, 2024
    Assignee: ECOLAB USA INC.
    Inventors: Steven J. Lange, Junzhong Li, Xin Sun, Allison Brewster, Richard Staub
  • Patent number: 11844349
    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: June 22, 2021
    Date of Patent: December 19, 2023
    Assignee: Ecolab USA Inc.
    Inventors: Junzhong Li, Chris Nagel, Laura Rice
  • Patent number: 11827867
    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 14, 2021
    Date of Patent: November 28, 2023
    Assignee: ECOLAB USA INC.
    Inventors: Junzhong Li, Richard K. Staub, David D. McSherry, Keith G. LaScotte, Steven J. Lange, Frank Everts
  • Patent number: 11820737
    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: Grant
    Filed: January 29, 2021
    Date of Patent: November 21, 2023
    Assignee: Ecolab USA Inc.
    Inventors: Junzhong Li, Allison Prideaux, Richard Staub
  • Publication number: 20230348374
    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: July 10, 2023
    Publication date: November 2, 2023
    Inventors: Junzhong Li, Allison Prideaux, Richard Staub
  • Publication number: 20230349873
    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: May 1, 2023
    Publication date: November 2, 2023
    Inventors: Ramakrishnan Balasubramanian, Junzhong Li
  • Publication number: 20230337667
    Abstract: Methods of generating performic acid by contacting aqueous oxidizing agent and aqueous formic acid source in liquid phase are disclosed. A system and apparatus for the in situ production of the performic acid chemistries is further disclosed. In particular, a continuous flow reactor is provided to generate performic acid at variable rates. Methods of employing the oxidizing biocide for various disinfection applications are also disclosed.
    Type: Application
    Filed: June 30, 2023
    Publication date: October 26, 2023
    Inventors: Paul R. Kraus, Benjamin Crew, Junzhong Li, David D. McSherry, Ramakrishnan Balasubramanian, Richard Staub, Ariel Chatman Kleczewski, Minh Tran, Catherine Hanson, Irwan Yunus, Jeffery D. Breshears, Brian Paul Brunner
  • Publication number: 20230329235
    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: May 15, 2023
    Publication date: October 19, 2023
    Inventors: Junzhong Li, Allison Brewster, Richard Staub, Steven J. Lange, Taz Cheritu, Jonathan P. Fast, Catherine Hanson
  • Publication number: 20230313076
    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 6, 2023
    Publication date: October 5, 2023
    Inventors: Junzhong Li, Allison Prideaux, David Dotzauer, Jonathan P. Fast, Richard Staub
  • Publication number: 20230313083
    Abstract: Clean-in-place methods applicable to improve production of fermentation operations are disclosed herein to monitor, report, and control the cleaning reagents applied, residual components thereof, and clean-in-place conditions within levels that are compatible with fermentation processes, without limiting the effectiveness of the clean-in-place protocol with respect to cleaning or sanitizing the fermentation system.
    Type: Application
    Filed: April 4, 2023
    Publication date: October 5, 2023
    Inventors: Chris NAGEL, Michael D. VANDER VORSTE, Jennifer STOKES, Junzhong LI, Jesse MURPHY, Mark Raymond ALTIER, Zach BABCOCK, Christina RAMSUMAIR
  • Patent number: 11772998
    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: May 20, 2021
    Date of Patent: October 3, 2023
    Assignee: ECOLAB USA INC.
    Inventors: Ramakrishnan Balasubramanian, Brian Epps, Junzhong Li, Richard Staub, Victor Keasler
  • Patent number: 11771673
    Abstract: The present disclosure relates generally to peroxyformic acid forming compositions and methods for forming peroxyformic acid, preferably in situ, and peroxyformic acid formed by said compositions and methods for the purpose of treating an animal tissue and providing an antimicrobial function thereon. present disclosure in particular relates to a residue-free teat treatment composition for the treatment of an animal tissue, especially bovine teats, which provides antimicrobial efficacy and does not leave a non-food ingredient residue on treated teats.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: October 3, 2023
    Assignee: Ecolab USA Inc.
    Inventors: Junzhong Li, Alexander Thomas, Allison Prideaux, David D. McSherry, Joseph Morelli, Richard Staub