Patents by Inventor David Daniel McSherry

David Daniel 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).

  • Patent number: 10433546
    Abstract: A solid glutaraldehyde composition is provided having an increased glass transition temperature. The glutaraldehyde can be used in a method of treating a wellbore or a subterranean formation, by introducing the composition to a wellbore or to an injection line within a wellbore in an amount effective to reduce biodegradation of crude oil, reduce corrosion of metal surfaces from sulfur-reducing bacteria, or to reduce the introduction of bacteria into the formation, reduce microbial contamination of a fluid introduced into the wellbore, or reduce microbial contamination of a pipeline.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: October 8, 2019
    Assignee: Ecolab USA Inc.
    Inventors: David Daniel McSherry, Benjamin Crew, Justin Scott Valenstein
  • Publication number: 20170251665
    Abstract: A solid glutaraldehyde composition is provided having an increased glass transition temperature. The glutaraldehyde can be used in a method of treating a wellbore or a subterranean formation, by introducing the composition to a wellbore or to an injection line within a wellbore in an amount effective to reduce biodegradation of crude oil, reduce corrosion of metal surfaces from sulfur-reducing bacteria, or to reduce the introduction of bacteria into the formation, reduce microbial contamination of a fluid introduced into the wellbore, or reduce microbial contamination of a pipeline.
    Type: Application
    Filed: March 6, 2017
    Publication date: September 7, 2017
    Inventors: David Daniel McSherry, Benjamin Crew, Justin Scott Valenstein
  • Publication number: 20170251666
    Abstract: A solid glutaraldehyde composition is provided which incorporates a quaternary ammonium compound. The glutaraldehyde can be used in a method of treating a wellbore or a subterranean formation, by introducing the composition to a wellbore or to an injection line within a wellbore in an amount effective to reduce biodegradation of crude oil, reduce corrosion of metal surfaces from sulfur-reducing bacteria, or to reduce the introduction of bacteria into the formation, reduce microbial contamination of a fluid introduced into the wellbore, or reduce microbial contamination of a pipeline.
    Type: Application
    Filed: March 6, 2017
    Publication date: September 7, 2017
    Inventors: David Daniel McSherry, Benjamin Crew, Justin Scott Valenstein
  • Patent number: 7087190
    Abstract: A composition for the generation of chlorine dioxide including at least one non-iodo interhalide, polyhalide or salt thereof having the formula BrmClnFoXp wherein m=0–3, n=0–4, o=0–3, p=0–2, X is a cationic moiety and with the provisos that m+n+o cannot be zero; if m+n+p<2, or mixtures thereof, and at least one source of chlorite ions.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: August 8, 2006
    Assignee: Ecolab Inc.
    Inventors: Robert D. P. Hei, David Daniel McSherry, Kim Smith
  • Patent number: 6821351
    Abstract: The present invention relates to compositions, kits and processes for the brightening of metal surfaces by the application of the chemical compositions. These compositions act to release hydrofluoric acid as a brightening agent. The solutions are preferably mixed during application of the brightening composition to a metal surface by mixing the solutions immediately prior to or even during application of the solution. This can be readily accomplished by mixing two solutions, one having a fluoride source and the other having a strong acid to release hydrofluoric acid from the fluoride source, the mixing occurring immediately before spray application, during spraying, or immediately after spraying of the two solutions. Mixing may be done on-site, which means that mixing is performed at the site of use, usually on the same day of use or even within a few (less than 10) minutes of use.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: November 23, 2004
    Assignee: Ecolab Inc.
    Inventors: Guang-jong Jason Wei, David Daniel McSherry, Mark D. Levitt
  • Publication number: 20040183050
    Abstract: A composition for the generation of chlorine dioxide including at least one non-iodo interhalide, polyhalide or salt thereof having the formula
    Type: Application
    Filed: March 20, 2003
    Publication date: September 23, 2004
    Applicant: Ecolab Inc.
    Inventors: Robert D.P. Hei, David Daniel McSherry, Kim Smith
  • Publication number: 20040065346
    Abstract: The present invention relates to compositions, kits and processes for the brightening of metal surfaces by the application of the chemical compositions. These compositions act to release hydrofluoric acid as a brightening agent. The solutions are preferably mixed during application of the brightening composition to a metal surface by mixing the solutions immediately prior to or even during application of the solution. This can be readily accomplished by mixing two solutions, one having a fluoride source and the other having a strong acid to release hydrofluoric acid from the fluoride source, the mixing occurring immediately before spray application, during spraying, or immediately after spraying of the two solutions. Mixing may be done on-site, which means that mixing is performed at the site of use, usually on the same day of use or even within a few (less than 10) minutes of use.
    Type: Application
    Filed: June 16, 2003
    Publication date: April 8, 2004
    Applicant: Ecolab Inc.
    Inventors: Guang-Jong Jason Wei, David Daniel McSherry, Mark D. Levitt
  • Patent number: 6663902
    Abstract: The present invention relates to a biocidal composition, designed for the generation of chlorine dioxide, comprising at least one iodo-compound having at least one iodine atom and a source of chlorite ions. The molar ration of chlorite ions to iodine atoms is 2 or greater. The composition finds use in a variety of applications including methods of cleaning, sanitizing, deodorizing, and disinfecting various surfaces.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: December 16, 2003
    Assignee: Ecolab Inc.
    Inventors: Robert D. P. Hei, David Daniel McSherry, Kim R. Smith, Keith E. Olson
  • Patent number: 6582734
    Abstract: The present invention relates to a two-part antimicrobial composition comprising at least one chlorine dioxide generating component comprising at least one metal chlorite and at least one acid-forming compound in a solid carrier, and at least one liquid aqueous component. The composition further comprises at least one antimicrobial fatty acid having from about 2 to about 15 carbon atoms, and preferably from about 6 to about 12 carbon atoms. The components, upon mixing, form a composition having a pH in the range of about 5 to about 10.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: June 24, 2003
    Assignee: Ecolab Inc.
    Inventors: Guang-jong Jason Wei, David Daniel McSherry, Francis Lawrence Richter, Richard K. Staub
  • Patent number: 6579377
    Abstract: The present invention relates to compositions, kits and processes for the brightening of metal surfaces by the application of the chemical compositions. These compositions act to release hydrofluoric acid as a brightening agent. The solutions are preferably mixed during application of the brightening composition to a metal surface by mixing the solutions immediately prior to or even during application of the solution. This can be readily accomplished by mixing two solutions, one having a fluoride source and the other having a strong acid to release hydrofluoric acid from the fluoride source, the mixing occurring immediately before spray application, during spraying, or immediately after spraying of the two solutions. Mixing may be done on-site, which means that mixing is performed at the site of use, usually on the same day of use or even within a few (less than 10) minutes of use.
    Type: Grant
    Filed: August 26, 2002
    Date of Patent: June 17, 2003
    Assignee: Ecolab Inc.
    Inventors: Guang-jong Jason Wei, David Daniel McSherry, Mark D. Levitt
  • Publication number: 20030015221
    Abstract: The present invention relates to compositions, kits and processes for the brightening of metal surfaces by the application of the chemical compositions. These compositions act to release hydrofluoric acid as a brightening agent. The solutions are preferably mixed during application of the brightening composition to a metal surface by mixing the solutions immediately prior to or even during application of the solution. This can be readily accomplished by mixing two solutions, one having a fluoride source and the other having a strong acid to release hydrofluoric acid from the fluoride source, the mixing occurring immediately before spray application, during spraying, or immediately after spraying of the two solutions. Mixing may be done on-site, which means that mixing is performed at the site of use, usually on the same day of use or even within a few (less than 10) minutes of use.
    Type: Application
    Filed: August 26, 2002
    Publication date: January 23, 2003
    Applicant: Ecolab Inc.
    Inventors: Guang-jong Jason Wei, David Daniel McSherry, Mark D. Levitt
  • Patent number: 6440224
    Abstract: A method of treating a surface of a metal is provided. A source of fluoride ion is mixed with a source of acid to form hydrofluoric acid and, when applied to a metal surface to be treated, the hydrofluoric acid acts as a brightening agent.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: August 27, 2002
    Assignee: Ecolab Inc.
    Inventors: Guang-jong Jason Wei, David Daniel McSherry, Mark D. Levitt
  • Patent number: 5925601
    Abstract: A method of lubricating conveyors with a lubricating concentrate formulated to contain about 0.5 wt-% to 90 wt-% of a fatty amide ethoxylate phosphate ester diluted to a use solution formulated to contain about 5 ppm to 1000 ppm of a fatty amide ethoxylate phosphate ester is described. The use solution is applied to an intended surface for lubrication. The lubricant can contain a variety of other chemical agents to provide additional desired properties including surfactants, chelating agents, sanitizing agents, and others. The lubricant concentrate or use solution is especially useful on conveyor systems with moving beverage containers such as glass, metal or plastic containers.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: July 20, 1999
    Assignee: Ecolab Inc.
    Inventors: David Daniel McSherry, Guang-jong Jason Wei