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).

  • Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
    Patent number: 10017720
    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: May 11, 2017
    Date of Patent: July 10, 2018
    Assignee: Ecolab USA Inc.
    Inventors: Junzhong Li, Richard K. Staub, David D. McSherry, Keith G. Lascotte, Steven J. Lange, Frank Everts
  • Use of peracetic acid/hydrogen peroxide and peroxide-reducing enzymes for treatment of drilling fluids, frac fluids, flowback water and disposal water
    Patent number: 10017403
    Abstract: Compositions and methods for the use of peracid compositions having low to substantially no hydrogen peroxide 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: July 10, 2018
    Assignee: Ecolab USA Inc.
    Inventors: Victor Keasler, Renato De Paula, Junzhong Li, David D. McSherry, Brandon Herdt, Richard Staub
  • Water temperature as a means of controlling kinetics of onsite generated peracids
    Patent number: 10010075
    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 8, 2014
    Date of Patent: July 3, 2018
    Assignee: Ecolab USA Inc.
    Inventors: Brandon Herdt, Richard Staub, Thomas C. Rustad, Junzhong Li, David D. McSherry, Paul R. Kraus, Richard Walsh
  • Use of peracetic acid/hydrogen peroxide and peroxide-reducing agents for treatment of drilling fluids, frac fluids, flowback water and disposal water
    Patent number: 9926214
    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: March 27, 2018
    Assignee: Ecolab USA Inc.
    Inventors: Victor Keasler, Renato De Paula, Junzhong Li, David D. McSherry, Brandon Herdt, Richard Staub, Robert J. Ryther
  • IN SITU GENERATION OF PEROXYCARBOXYLIC ACIDS AT ALKALINE pH, AND METHODS OF USE THEREOF
    Publication number: 20170339952
    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: August 16, 2017
    Publication date: November 30, 2017
    Inventors: Junzhong Li, David D. McSherry, Richard Staub
  • In situ generation of peroxycarboxylic acids at alkaline pH, and methods of use thereof
    Patent number: 9763442
    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: Grant
    Filed: September 26, 2014
    Date of Patent: September 19, 2017
    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
    Publication number: 20170247644
    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: Application
    Filed: May 11, 2017
    Publication date: August 31, 2017
    Inventors: Junzhong Li, Richard K. Staub, David D. McSherry, Keith G. Lascotte, Steven J. Lange, Frank Everts
  • PEROXYCARBOXYLIC ACID COMPOSITIONS SUITABLE FOR INLINE OPTICAL OR CONDUCTIVITY MONITORING
    Publication number: 20170248522
    Abstract: Peracid stable fluorescent active compounds in highly acidic, equilibrium peroxycarboxylic acid sanitizing compositions are disclosed as having improved fluorescent stability allowing for monitoring of peroxycarboxylic acid concentration by conductivity and/or optical sensors. Beneficially, the compositions are also low odor and low/no VOC dual functioning acid wash and sanitizing compositions.
    Type: Application
    Filed: May 15, 2017
    Publication date: August 31, 2017
    Inventors: Junzhong Li, David D. McSherry, Allison Brewster, Richard Staub
  • Method for making a peroxycarboxylic acid
    Patent number: 9708256
    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: February 11, 2016
    Date of Patent: July 18, 2017
    Assignee: Ecolab USA Inc.
    Inventors: David D. McSherry, Richard Staub, Dan N. Tallman, Junzhong Li, Keith D. Lokkesmoe
  • Peroxycarboxylic acid compositions suitable for inline optical or conductivity monitoring
    Patent number: 9675076
    Abstract: Peracid stable fluorescent active compounds in highly acidic, equilibrium peroxycarboxylic acid sanitizing compositions are disclosed as having improved fluorescent stability allowing for monitoring of peroxycarboxylic acid concentration by conductivity and/or optical sensors. Beneficially, the compositions are also low odor and low/no VOC dual functioning acid wash and sanitizing compositions.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: June 13, 2017
    Assignee: Ecolab USA Inc.
    Inventors: Junzhong Li, David D. McSherry, Allison Brewster, Richard Staub
  • Sulfoperoxycarboxylic acids, their preparation and methods of use as bleaching and antimicrobial agents
    Patent number: 9676711
    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: February 19, 2016
    Date of Patent: June 13, 2017
    Assignee: Ecolab USA Inc.
    Inventors: Li Junzhong, Richard Staub, David D. McSherry, Keith G. Lascotte, Steven J. Lange, Frank Everts
  • Glycerin ether ethoxylate solfactants
    Patent number: 9663431
    Abstract: The present invention relates to novel glycerin ether ethoxylate solfactant compounds, compositions employing the same, and methods of using these compounds. Beneficially the compounds have efficacy as both solvents and surfactants with low foam and low viscosity. The compounds of the present invention can be used as antimicrobials and/or sanitizing agents in various formulations. The compounds of the present invention are also suitable for use as solvents and/or hydrotropes.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: May 30, 2017
    Assignee: Ecolab USA Inc.
    Inventors: Gregory G. Griese, Carter M. Silvernail, David D. McSherry
  • PEROXYCARBOXYLIC ACID COMPOSITIONS SUITABLE FOR INLINE OPTICAL OR CONDUCTIVITY MONITORING
    Publication number: 20170127682
    Abstract: Peracid stable fluorescent active compounds in highly acidic, equilibrium peroxycarboxylic acid sanitizing compositions are disclosed as having improved fluorescent stability allowing for monitoring of peroxycarboxylic acid concentration by conductivity and/or optical sensors. Beneficially, the compositions are also low odor and low/no VOC dual functioning acid wash and sanitizing compositions.
    Type: Application
    Filed: January 24, 2017
    Publication date: May 11, 2017
    Inventors: Junzhong Li, David D. McSherry, Allison Brewster, Richard Staub
  • DETERGENTS CAPABLE OF CLEANING, BLEACHING, SANITIZING AND/OR DISINFECTING TEXTILES INCLUDING SULFOPEROXYCARBOXYLIC ACIDS
    Publication number: 20170081618
    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: December 2, 2016
    Publication date: March 23, 2017
    Inventors: David W. Gohl, Robert D.P. Hei, Thomas Merz, Peter Jens Forth, Matthias Kreysel, David D. McSherry, Junzhong Li, Jonathan P. Fast
  • SELF INDICATING ANTIMICROBIAL CHEMISTRY
    Publication number: 20170071200
    Abstract: Self-indicating chemistries are provided for visual detection by a user of efficacious levels of peroxycarboxylic acid concentrations in a solution produced in situ. The self-indicating chemistries include a combination of dyes providing a visual color indication, such as a tri-color indicator system, such as a yellow, green, and red color system indicating in situ threshold levels of peroxycarboxylic acid concentrations in a solution employing the self-indicating chemistry. Systems, kits and compositions for a quantitative assessment of an in situ perhydrolysis reaction to generate peroxycarboxylic acids are provided. Methods of use are further provided.
    Type: Application
    Filed: September 9, 2016
    Publication date: March 16, 2017
    Inventors: David D. McSherry, Junzhong Li, Richard Staub
  • PERFORMIC ACID ON-SITE GENERATOR AND FORMULATOR
    Publication number: 20170064949
    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: September 1, 2016
    Publication date: March 9, 2017
    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
  • Peroxycarboxylic acid compositions suitable for inline optical or conductivity monitoring
    Patent number: 9585397
    Abstract: Peracid stable fluorescent active compounds in highly acidic, equilibrium peroxycarboxylic acid sanitizing compositions are disclosed as having improved fluorescent stability allowing for monitoring of peroxycarboxylic acid concentration by conductivity and/or optical sensors. Beneficially, the compositions are also low odor and low/no VOC dual functioning acid wash and sanitizing compositions.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: March 7, 2017
    Assignee: ECOLAB USA INC.
    Inventors: Junzhong Li, David D. McSherry, Allison Brewster, Richard Staub
  • Detergents capable of cleaning, bleaching, sanitizing and/or disinfecting textiles including sulfoperoxycarboxylic acids
    Patent number: 9540598
    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: Grant
    Filed: September 10, 2014
    Date of Patent: January 10, 2017
    Assignee: Ecolab USA Inc.
    Inventors: David W. Gohl, Robert D. P. Hei, Thomas Merz, Peter Jens Forth, Matthias Kreysel, David D. McSherry, Junzhong Li, Jonathan P. Fast
  • METHOD FOR MAKING A PEROXYCARBOXYLIC ACID
    Publication number: 20160237031
    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: February 11, 2016
    Publication date: August 18, 2016
    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 ANTIMICORBIAL
    Publication number: 20160168087
    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: Application
    Filed: February 19, 2016
    Publication date: June 16, 2016
    Inventors: Li Junzhong, Richard Staub, David D. McSherry, Keith G. Lascotte, Steven J. Lange, Frank Everts