Patents by Inventor David D. McSherry

David D. McSherry 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).

  • Antimicrobial peracid compositions with selected catalase enzymes and methods of use in aseptic packaging
    Patent number: 9358314
    Abstract: The present invention relates to specially selected catalase enzymes and their use in reducing hydrogen peroxide in applications, and particularly in aseptic packaging applications.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: June 7, 2016
    Assignee: Ecolab USA Inc.
    Inventors: Brandon L. Herdt, Joshua P. Magnuson, David D. McSherry, Junzhong Li, Krista L. Owens
  • Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
    Patent number: 9359295
    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: November 7, 2011
    Date of Patent: June 7, 2016
    Assignee: ECOLAB USA, INC.
    Inventors: Junzhong Li, Richard K. Staub, David D. McSherry, Keith G. Lascotte, Steven J. Lange, Frank Everts
  • EFFICIENT STABILIZER IN CONTROLLING SELF ACCELERATED DECOMPOSITION TEMPERATURE OF PEROXYCARBOXYLIC ACID COMPOSITIONS WITH MINERAL ACIDS
    Publication number: 20160150779
    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: Application
    Filed: February 9, 2016
    Publication date: June 2, 2016
    Inventors: JUNZHONG LI, DAVID D. MCSHERRY, RICHARD STAUB
  • USE OF PERACETIC ACID/HYDROGEN PEROXIDE AND PEROXIDE-REDUCING AGENTS FOR TREATMENT OF DRILLING FLUIDS, FRAC FLUIDS, FLOWBACK WATER AND DISPOSAL WATER
    Publication number: 20160137535
    Abstract: Methods for the use of peracid compositions having decreased hydrogen peroxide concentration and a UV-blocking agent for various water treatments, including oil- and gas-field operations, and/or other aseptic treatments are disclosed. In numerous aspects, peracetic acid is the preferred peracid and is treated with a peroxide-reducing agent to substantially reduce the hydrogen peroxide content.
    Type: Application
    Filed: January 25, 2016
    Publication date: May 19, 2016
    Inventors: Victor Keasler, Renato De Paula, Junzhong Li, David D. McSherry, Brandon Herdt, Richard Staub, Robert J. Ryther
  • Efficient stabilizer in controlling self accelerated decomposition temperature of peroxycarboxylic acid compositions with mineral acids
    Patent number: 9288992
    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: December 29, 2014
    Date of Patent: March 22, 2016
    Assignee: Ecolab USA, Inc.
    Inventors: Junzhong Li, David D. McSherry, Richard Staub
  • Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
    Patent number: 9290448
    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: June 27, 2014
    Date of Patent: March 22, 2016
    Assignee: ECOLAB USA, INC.
    Inventors: Junzhong Li, Richard Staub, David D. McSherry, Keith G. Lascotte, Steven J. Lange, Frank Everts
  • Method for making a peroxycarboxylic acid
    Patent number: 9288982
    Abstract: The present invention relates to apparatus and methods for making a peroxycarboxylic acid. The apparatus includes a reaction catalyst and a guard column for pretreating one or more reagents, which can increase the life, activity, and/or safety of the reaction catalyst. The peroxycarboxylic acid compositions made by the method and apparatus can include one or more peroxycarboxylic acids.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: March 22, 2016
    Assignee: Ecolab USA, Inc.
    Inventors: David D. McSherry, Richard Staub, Dan N. Tallman, Junzhong Li, Keith D. Lokkesmoe
  • Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
    Patent number: 9253978
    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: June 7, 2013
    Date of Patent: February 9, 2016
    Assignee: Ecolab USA, Inc.
    Inventors: Junzhong Li, Richard Staub, David D. McSherry, Keith G. Lascotte, Steven J. Lange, Frank Everts
  • Use of peracetic acid/hydrogen peroxide and peroxide-reducing agents for treatment of drilling fluids, frac fluids, flowback water and disposal water
    Patent number: 9242879
    Abstract: Methods for the use of peracid compositions having decreased hydrogen peroxide concentration for various water treatments, including oil- and gas-field operations, and/or other aseptic treatments are disclosed. In numerous aspects, peracetic acid is the preferred peracid and is treated with a peroxide-reducing agent to substantially reduce the hydrogen peroxide content. Methods for using the treated peracid compositions for treatment of drilling fluids, frac fluids, flow back waters and disposal waters are also disclosed for improving water condition, reducing oxidizing damage associated with hydrogen peroxide and/or reducing bacteria infestation.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: January 26, 2016
    Assignee: Ecolab USA Inc.
    Inventors: Victor Keasler, Renato De Paula, Junzhong Li, David D. McSherry, Brandon Herdt, Richard Staub, Robert J. Ryther
  • Deodorization of peracids
    Patent number: 9084421
    Abstract: The present invention relates to compositions of peracids, such as peroxycarboxylic acids, having reduced odor compared to conventional peracid compositions. The invention further relates to methods employing such compositions, and methods of making these compositions. Typically, the reduced-odor antimicrobial compositions include an alcohol for the esterification reaction to remove short- to mid-chain length malodorous carboxylic acids.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: July 21, 2015
    Assignee: Ecolab USA Inc.
    Inventor: David D. McSherry
  • EFFICIENT STABILIZER IN CONTROLLING SELF ACCELERATED DECOMPOSITION TEMPERATURE OF PEROXYCARBOXYLIC ACID COMPOSITIONS WITH MINERAL ACIDS
    Publication number: 20150110894
    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: Application
    Filed: December 29, 2014
    Publication date: April 23, 2015
    Inventors: Junzhong Li, David D. McSherry, Richard Staub
  • METHOD FOR MAKING A PEROXYCARBOXYLIC ACID
    Publication number: 20150111967
    Abstract: The present invention relates to apparatus and methods for making a peroxycarboxylic acid. The apparatus includes a reaction catalyst and a guard column for pretreating one or more reagents, which can increase the life, activity, and/or safety of the reaction catalyst. The peroxycarboxylic acid compositions made by the method and apparatus can include one or more peroxycarboxylic acids.
    Type: Application
    Filed: December 31, 2014
    Publication date: April 23, 2015
    Inventors: David D. McSherry, Richard Staub, Dan N. Tallman, Junzhong Li, Keith D. Lokkesmoe
  • WATER TEMPERATURE AS A MEANS OF CONTROLLING KINETICS OF ONSITE GENERATED PERACIDS
    Publication number: 20150094369
    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: December 8, 2014
    Publication date: April 2, 2015
    Inventors: Brandon Herdt, Richard Staub, Thomas C. Rustad, Junzhong Li, David D. McSherry, Paul R. Kraus, Richard Walsh
  • Method for making a peroxycarboxylic acid
    Patent number: 8957246
    Abstract: The present invention relates to apparatus and methods for making a peroxycarboxylic acid. The apparatus includes a reaction catalyst and a guard column for pretreating one or more reagents, which can increase the life, activity, and/or safety of the reaction catalyst. The peroxycarboxylic acid compositions made by the method and apparatus can include one or more peroxycarboxylic acids.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: February 17, 2015
    Assignee: Ecolab USA, Inc.
    Inventors: David D. McSherry, Richard K. Staub, Dan N. Tallman, Junzhong Li, Keith E. Lokkesmeo
  • DETERGENTS CAPABLE OF CLEANING, BLEACHING, SANITIZING AND/OR DISINFECTING TEXTILES INCLUDING SULFOPEROXYCARBOXYLIC ACIDS
    Publication number: 20150026900
    Abstract: The present invention relates to novel combined laundry detergent, bleach, and antimicrobial composition incorporating novel sulfoperoxycarboxylic acid compounds, and methods for making and using them. The sulfoperoxycarboxylic compounds used in compositions of the invention are storage stable, water soluble and have low to no odor. Compositions of the invention may be in the form of a liquid, a solid, or a gel. The sulfoperoxycarboxylic compounds useful in preparing compositions of the present invention can be formed from non-petroleum based renewable materials.
    Type: Application
    Filed: September 10, 2014
    Publication date: January 29, 2015
    Inventors: David W. Gohl, Robert D.P. Hei, Thomas Merz, Peter Jens Forth, Matthias Kreysel, David D. McSherry, Junzhong Li, Jonathan P. Fast
  • DEODORIZATION OF PERACIDS
    Publication number: 20150031763
    Abstract: The present invention relates to compositions of peracids, such as peroxycarboxylic acids, having reduced odor compared to conventional peracid compositions. The invention further relates to methods employing such compositions, and methods of making these compositions. Typically, the reduced-odor antimicrobial compositions include an alcohol for the esterification reaction to remove short- to mid-chain length malodorous carboxylic acids.
    Type: Application
    Filed: October 8, 2014
    Publication date: January 29, 2015
    Inventor: David D. McSherry
  • Water temperature as a means of controlling kinetics of onsite generated peracids
    Patent number: 8933263
    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: Grant
    Filed: December 20, 2011
    Date of Patent: January 13, 2015
    Assignee: Ecolab USA Inc.
    Inventors: Brandon Herdt, Richard Staub, Thomas C. Rustad, Junzhong Li, David D. McSherry, Paul R. Kraus, Richard Walsh
  • LOW TEMPERATURE SULFOPEROXYCARBOXYLIC ACID CONTAINING CLEANING COMPOSITION
    Publication number: 20150010646
    Abstract: The present invention relates to compositions, methods of making and their use as cleaning composition, as antimicrobials and/or bleaching agent having improved storage stability and effective at lower concentration, wherein the liquid, storage stable composition comprises a mixture of: a) a sulfoperoxycarboxylic acid, b) a C1 to C4 percarboxylic acid, c) a C5 to C10 percarboxylic acid, d) a peroxide agent, e) a hydrotrope, f) an acidulant, g) a liquid; wherein the composition comprises free sulfocarboxylic acid, free C1 to C4 carboxylic acid and free C5 to C10 carboxylic acid.
    Type: Application
    Filed: January 27, 2012
    Publication date: January 8, 2015
    Applicant: ECOLAB USA INC.
    Inventors: Julia Tiekemeier, Petra Vogt, Junzhong Li, David D. McSherry
  • IN SITU GENERATION OF PEROXYCARBOXYLIC ACIDS AT ALKALINE pH, AND METHODS OF USE THEREOF
    Publication number: 20150011632
    Abstract: The present disclosure is related to percarboxylic acid compositions formed in situ in non-equilibrium reactions. The peroxycarboxylic acid compositions are formed using ester based starting materials. Methods for using the percarboxylic acid compositions are also disclosed.
    Type: Application
    Filed: September 26, 2014
    Publication date: January 8, 2015
    Inventors: Junzhong Li, David D. McSherry, Richard Staub
  • Deodorization of peracids
    Patent number: 8906963
    Abstract: The present invention relates to compositions of peracids, such as peroxycarboxylic acids, having reduced odor compared to conventional peracid compositions. The invention further relates to methods employing such compositions, and methods of making these compositions. Typically, the reduced-odor antimicrobial compositions include an alcohol for the esterification reaction to remove short- to mid-chain length malodorous carboxylic acids.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: December 9, 2014
    Assignee: Ecolab USA Inc
    Inventor: David D. McSherry