Patents by Inventor Philip Gerdon Sweeny

Philip Gerdon Sweeny 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: 20200237943
    Abstract: Activated hydrogen peroxide disinfecting compositions are provided especially for low-foaming applications. A concentrate for dilution by an end-user is provided, which includes a hydrogen peroxide source, a non-surfactant organic sulfonic acid or salt thereof, a non-ionic surfactant, and an optional organic acid. Also provided is a ready-to-use hydrogen peroxide, disinfectant solution including a biocidal amount of hydrogen peroxide, a non-surfactant organic sulfonic acid or salt thereof, a non-ionic surfactant, water as solvent and an optional organic acid. An end-user can disinfect a surface of microorganisms by contacting the surface with the disinfecting composition for an amount of time effective to kill a majority of the microbes located on the surface.
    Type: Application
    Filed: April 16, 2020
    Publication date: July 30, 2020
    Applicant: Lonza, Inc.
    Inventors: Deqing Lei, Philip Gerdon Sweeny
  • Patent number: 10646607
    Abstract: Activated hydrogen peroxide disinfecting compositions are provided especially for low-foaming applications. A concentrate for dilution by an end-user is provided, which includes a hydrogen peroxide source, a non-surfactant organic sulfonic acid or salt thereof, a non-ionic surfactant, and an optional organic acid. Also provided is a ready-to-use hydrogen peroxide, disinfectant solution including a biocidal amount of hydrogen peroxide, a non-surfactant organic sulfonic acid or salt thereof, a non-ionic surfactant, water as solvent and an optional organic acid. An end-user can disinfect a surface of microorganisms by contacting the surface with the disinfecting composition for an amount of time effective to kill a majority of the microbes located on the surface.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: May 12, 2020
    Assignee: Lonza, Inc.
    Inventors: Deqing Lei, Philip Gerdon Sweeny
  • Publication number: 20190364903
    Abstract: It has now been discovered that forming a shaped article from a blend of calcium hypochlorite and lime, wherein the lime content is greater than 10% by weight, based on the total weight of the shaped article, the resulting solid shaped article has a favorable dissolution (solubility) profile and the solid shaped article maintains structural integrity during use in an aqueous environment.
    Type: Application
    Filed: August 16, 2019
    Publication date: December 5, 2019
    Inventors: Rahim Hani, Philip Gerdon Sweeny, Janet Akande
  • Patent number: 10285400
    Abstract: Disinfectant compositions disclosed herein comprise at least one biocidal quaternary ammonium compound, hydrogen peroxide, and optionally inorganic acid and/or organic acid. Particularly, a composition comprising a biocidal quaternary ammonium chloride compound, hydrogen peroxide, and C1 to C8 carboxylic acid, mono-, di- and tricarboxylic acid enhances significantly its antimicrobial activities of either hydrogen peroxide or the quaternary ammonium chloride alone.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: May 14, 2019
    Assignee: Lonza Inc.
    Inventors: Deqing Lei, Philip Gerdon Sweeny
  • Publication number: 20160330972
    Abstract: It has now been discovered that forming a shaped article from a blend of calcium hypochlorite and lime, wherein the lime content is greater than 10% by weight, based on the total weight of the shaped article, the resulting solid shaped article has a favorable dissolution (solubility) profile and the solid shaped article maintains structural integrity during use in an aqueous environment.
    Type: Application
    Filed: May 16, 2016
    Publication date: November 17, 2016
    Inventors: Rahim Hani, Philip Gerdon Sweeny, Janet Akande
  • Publication number: 20160074549
    Abstract: Activated hydrogen peroxide disinfecting compositions are provided especially for low-foaming applications. A concentrate for dilution by an end-user is provided, which includes a hydrogen peroxide source, a non-surfactant organic sulfonic acid or salt thereof, a non-ionic surfactant, and an optional organic acid. Also provided is a ready-to-use hydrogen peroxide, disinfectant solution including a biocidal amount of hydrogen peroxide, a non-surfactant organic sulfonic acid or salt thereof, a non-ionic surfactant, water as solvent and an optional organic acid. An end-user can disinfect a surface of microorganisms by contacting the surface with the disinfecting composition for an amount of time effective to kill a majority of the microbes located on the surface.
    Type: Application
    Filed: September 17, 2015
    Publication date: March 17, 2016
    Inventors: Deqing Lei, Philip Gerdon Sweeny
  • Publication number: 20160066571
    Abstract: Disinfectant compositions disclosed herein comprise at least one biocidal quaternary ammonium compound, hydrogen peroxide, and optionally inorganic acid and/or organic acid. Particularly, a composition comprising a biocidal quaternary ammonium chloride compound, hydrogen peroxide, and C1 to C8 carboxylic acid, mono-, di- and tricarboxylic acid enhances significantly its antimicrobial activities of either hydrogen peroxide or the quaternary ammonium chloride alone.
    Type: Application
    Filed: September 8, 2015
    Publication date: March 10, 2016
    Inventors: Deqing LEI, Philip Gerdon SWEENY
  • Patent number: 9220272
    Abstract: Disclosed is an antimicrobial composition containing an active halogen-containing component having a source of an active halogen and having an elevated pH, which is mixed with an acidic component. An acidic component is added in an amount to the active halogen-containing component to reduce the pH of the antimicrobial composition. When the pH of the active halogen-containing composition is reduced, the resulting composition has been discovered to be effective as a disinfectant and, particularly, as a sporicide. Application methods for applying the composition are also described.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: December 29, 2015
    Assignee: LONZA, INC
    Inventors: Joseph Kimler, Steven J. Colby, Philip Gerdon Sweeny
  • Patent number: 8933244
    Abstract: Disclosed are compositions for stabilizing a source of active halogen in aqueous solution. The compositions comprise (i) at least one substituted N-hydrogen compound, such as 5,5-dimethylhydantoin, and (ii) at least one additional nitrogen compound selected from ammonia, ammonium salts, and nitrogen compounds containing no carbon-hydrogen bonds, the molar ratio of (i) and (ii) being in the range of 50:1 to 0.02:1. Active halogen-containing aqueous solutions stabilized by the above compositions are particularly useful for controlling microbial and planktonic growth in aqueous systems such as process liquids in the pulping or papermaking industry. The compositions are also useful in reducing the corrosivity of halogen-containing solutions.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: January 13, 2015
    Assignee: Lonza Inc.
    Inventors: Kevin E. Janak, Sarah Elizabeth Kopecky, Michael Leonid Ludensky, Philip Gerdon Sweeny
  • Publication number: 20130280349
    Abstract: Disclosed is an antimicrobial composition containing an active halogen-containing component having a source of an active halogen and having an elevated pH, which is mixed with an acidic component. An acidic component is added in an amount to the active halogen-containing component to reduce the pH of the antimicrobial composition. When the pH of the active halogen-containing composition is reduced, the resulting composition has been discovered to be effective as a disinfectant and, particularly, as a sporicide. Application methods for applying the composition are also described.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 24, 2013
    Applicant: LONZA, INC.
    Inventors: Joseph Kimler, Steven J. Colby, Philip Gerdon Sweeny
  • Publication number: 20120237611
    Abstract: Disclosed is a method for controlling microbial growth in an aqueous system containing sulfite and/or bisulfite residues by addition of a peroxy compound at a pH of grater than 5. Also disclosed is a method for stabilizing an active halogen biocide in an aqueous system containing peroxide residues by addition of an N-hydrogen compound to the active halogen biocide before combining it with the peroxide containing aqueous system. Further disclosed is an optimized papermaking biocide program consisting of initially treating sulfite bleached pulp with peroxide followed by application of an N-hydrogen-stabilized active halogen compound to the paper producing white waters and an analytical method for determining peroxide concentrations in aqueous systems in the presence of sulfite and/or bisulfite.
    Type: Application
    Filed: May 29, 2012
    Publication date: September 20, 2012
    Inventor: Philip Gerdon Sweeny
  • Publication number: 20120114632
    Abstract: Disclosed are compositions for stabilizing a source of active halogen in aqueous solution. The compositions comprise (i) at least one substituted N-hydrogen compound, such as 5,5-dimethylhydantoin, and (ii) at least one additional nitrogen compound selected from ammonia, ammonium salts, and nitrogen compounds containing no carbon-hydrogen bonds, the molar ratio of (i) and (ii) being in the range of 50:1 to 0.02:1. Active halogen-containing aqueous solutions stabilized by the above compositions are particularly useful for controlling microbial and planktonic growth in aqueous systems such as process liquids in the pulping or papermaking industry. The compositions are also useful in reducing the corrosivity of halogen-containing solutions.
    Type: Application
    Filed: July 26, 2010
    Publication date: May 10, 2012
    Inventors: Kevin E. Janak, Sarah Elizabeth Kopecky, Michael Leonid Ludensky, Philip Gerdon Sweeny
  • Publication number: 20110076387
    Abstract: The present invention relates to a method for imparting antibiotic activity to a surface of a solid substrate by exposing a solid substrate composition to conditions suitable for covalent grafting and thermal polymerization of the substrate.
    Type: Application
    Filed: September 29, 2009
    Publication date: March 31, 2011
    Applicant: LONZA, INC.
    Inventors: David Joseph Koehl, Joseph Kimler, Larry Kent Hall, Philip Gerdon Sweeny
  • Publication number: 20100092574
    Abstract: Disclosed is a method for controlling microbial growth in an aqueous system containing sulfite and/or bisulfite residues by addition of a peroxy compound at a pH of greater than 5. Also disclosed is a method for stabilizing an active halogen biocide in an aqueous system containing peroxide residues by addition of an N-hydrogen compound to the active halogen biocide before combining it with the peroxide containing aqueous system. Further disclosed is an optimized papermaking biocide program consisting of initially treating sulfite bleached pulp with peroxide followed by application of an N-hydrogen-stabilized active halogen compound to the paper producing white waters and an analytical method for determining peroxide concentrations in aqueous systems in the presence of sulfite and/or bisulfite.
    Type: Application
    Filed: September 24, 2009
    Publication date: April 15, 2010
    Inventor: Philip Gerdon Sweeny
  • Publication number: 20040043914
    Abstract: The present invention is an automatic toilet bowl product which contains a colorant and a sanitizer in a homogenous mixture. The product is provided in tablet form. The ingredients include a partially halogenated hydantoin, a binder, a solubility rate modifier and a colorant. The tablet sanitizes and colors the toilet bowl water for the life of the tablet.
    Type: Application
    Filed: May 29, 2003
    Publication date: March 4, 2004
    Applicant: LONZA INC.
    Inventors: Andrew James Kaziska, Michael Fred Czuczak, Philip Gerdon Sweeny, Daniel Wayne Lemke
  • Patent number: 6660168
    Abstract: A continuous method is provided for dissolving a solid oxidizer into an aqueous solution which yields a stream of the aqueous solution having a constant or near constant concentration of solid oxidizer. The method of the present invention includes (a) disposing a bed of solid oxidizer into a container; (b) introducing an aqueous solution below the top surface of the bed; and (c) removing any solution above the top surface of the bed while maintaining a constant or near constant level of aqueous solution above the bed. Preferably, step (c) is performed at about atmospheric pressure. This method can be achieved with a feeder that includes a tank for containing a bed of solid oxidizer and a disperser for introducing the aqueous solution into the tank. A sensor/control unit is provided for sensing a combined bed and aqueous solution volume within the tank and maintaining the combined volume within a predetermined range.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: December 9, 2003
    Assignee: Lonza Inc.
    Inventors: Philip Gerdon Sweeny, James Howard Harvey
  • Publication number: 20030050280
    Abstract: The present invention relates to a starch compositions that include biodegradation inhibitors which are low free formaldehyde formulation of one or more formaldehyde donor compounds. The starch compositions may also contain an additional inhibitor comprising one or more isothiazolone compounds which, when combined with the formaldehyde donor compounds, results in a synergistic blend. Methods for inhibiting starch biodegradation are also disclosed.
    Type: Application
    Filed: June 25, 2002
    Publication date: March 13, 2003
    Applicant: LONZA INC.
    Inventors: Philip Gerdon Sweeny, Olga Borokhov, Patrick Jay Lutz, Ahmed Mohammed Tafesh
  • Publication number: 20030029812
    Abstract: The present invention is a method for controlling (e.g. inhibiting) the growth of microorganisms or killing microorganisms in an aqueous solution, such as that found in a water treatment facility or papermaking facility. The method includes adding an effective amount of (a) a free halogen-generating biocide, (b) a halogen stabilizer, and (c) a quaternary ammonium compound, a biocidal amine or salt thereof, or mixture thereof to the aqueous solution. The aqueous solution may be water in a recreational facility, an industrial cooling system, a water treatment facility or a water slurry, such as a circulating water slurry, in a papermaking facility. The mixture of the present invention is useful as a slimicide. The quaternary ammonium biocide and/or biocidal amine increase the efficacy of the free halogen-generating biocidal system.
    Type: Application
    Filed: June 28, 2002
    Publication date: February 13, 2003
    Applicant: LONZA INC.
    Inventors: Thomas Warren Burns, Christopher Hill, Richard Ashley Sinden, Philip Gerdon Sweeny
  • Publication number: 20020179262
    Abstract: The present invention is a method of stabilizing hydrogen peroxide in an aqueous solution, such as a circulating water slurry, comprising a peroxide, such as hydrogen peroxide. The aqueous solution may include organic matter. The method comprises adding an aldehyde donor, such as a methylolhydantoin, to the solution (or slurry). The inventors have discovered that aldehyde donors significantly reduce the decomposition of hydrogen peroxide by catalase and other peroxide decomposing enzymes, which are often present in recycled paper. As a result, less hydrogen peroxide needs to be added to a solution to effectively bleach organic matter in the solution. Furthermore, aldehyde donors are safe to handle and cost effective. Another embodiment is a method of bleaching recycled papers in a circulating water slurry comprising organic matter. The method comprises adding hydrogen peroxide and an aldehyde donor to the slurry.
    Type: Application
    Filed: April 12, 2002
    Publication date: December 5, 2002
    Applicant: Lonza, Inc.
    Inventors: Bill Ney, Richard Sinden, Philip Gerdon Sweeny, Patrick Jay Lutz, Olga Borokhov
  • Patent number: 6432262
    Abstract: A method of stabilizing hydrogen peroxide in an aqueous solution, such as a circulating water slurry, comprising a peroxide, such as hydrogen peroxide. The aqueous solution may include organic matter. The method comprises adding an aldehyde donor, such as a methylolhydantoin, to the solution (or slurry). The inventors have discovered that aldehyde donors significantly reduce the decomposition of hydrogen peroxide by catalase and other peroxide decomposing enzymes, which are often present in recycled paper. As a result, less hydrogen peroxide needs to be added to a solution to effectively bleach organic matter in the solution. Furthermore, aldehyde donors are safe to handle and cost effective. Another embodiment is a method of bleaching recycled papers in a circulating water slurry comprising organic matter. The method comprises adding hydrogen peroxide and an aldehyde donor to the slurry.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: August 13, 2002
    Assignee: Lonza, Inc.
    Inventors: Bill Ney, Richard Sinden, Philip Gerdon Sweeny, Patrick Jay Lutz, Olga Borokhov