Hypochlorous Acid Patents (Class 252/187.32)
  • Patent number: 8945630
    Abstract: A method for preparing a stabilized antimicrobial hypochlorous acid solution by diluting an aged stock solution to provide a hypochlorous acid solution at a concentration of about 50 to about 7000 ppm at a pH range of about 2.8 to about 4.0. The antimicrobial hypochlorous acid solution maintains at least 75 percent of the available chlorine present over a period of about 6 months to about 12 months. The antimicrobial hypochlorous acid solution has medical applications in humans and veterinary practice, both prophylactic and therapeutic. The solution can also be used for non-medical applications in antisepsis and sterilization of surfaces.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: February 3, 2015
    Assignee: Aquilabs S.A.
    Inventor: Justo Leonardo Calderon
  • Patent number: 7976725
    Abstract: An efficient cyclic process and related compositions for the in-situ generation of chlorine dioxide from dilute solutions of chlorite anions at near neutral pH. The cyclic process provides a means of safe and effective use of chlorine dioxide with reduced concern of chlorite accumulation in the aqueous system. The disclosed chemistry used to support the cyclic process can be applied independently or in various combinations that are effectively inert. This dramatically reduces safety concerns since the chlorine dioxide is produced in-situ to the application and in dilute concentrations. Also, the process allows for regeneration of inert anions such as bromide and chlorite thereby reducing operating cost.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: July 12, 2011
    Assignee: Truox, Inc.
    Inventor: Roy William Martin
  • Patent number: 7927508
    Abstract: An efficient cyclic process and related compositions for the in-situ generation of oxyhalogens from anions of chloride, bromide and chlorite in an aqueous system using in-situ generated sulfate free radicals. The cyclic process and compositions enhance the rate of inactivation of microbiological organisms especially those resistant to inactivation from free halogen based sanitizers, and oxidation of oxidation resistant organic based compounds in aqueous solution. Aquatic facilities susceptible to accumulation of organic N-chloramines and other oxidation resistant compounds, as well as oxidation resistant parasitic organisms such as cryptosporidium and Giardia, obtain dramatic improvements in the rate of oxidation and subsequent inactivation of these undesirable contaminants.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: April 19, 2011
    Assignee: Truox, Inc.
    Inventor: Roy W. Martin
  • Patent number: 7927509
    Abstract: An efficient cyclic process and related compositions for the in-situ generation of chlorine dioxide from dilute solutions of chlorite anions at near neutral pH. The cyclic process provides a means of safe and effective use of chlorine dioxide with reduced concern of chlorite accumulation in the aqueous system. The disclosed chemistry used to support the cyclic process can be applied independently or in various combinations that are effectively inert. This dramatically reduces safety concerns since the chlorine dioxide is produced in-situ to the application and in dilute concentrations. Also, the process allows for regeneration of inert anions such as bromide and chlorite thereby reducing operating cost.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: April 19, 2011
    Assignee: Truox, Inc.
    Inventor: Roy William Martin
  • Patent number: 7922933
    Abstract: This invention relates to a method for enhanced sanitation and oxidation of aqueous solutions at aquatic facilities. The method provides a means for the in-situ generation of chlorine dioxide from dilute solutions of chlorite anions at near neutral pH, and enhanced inactivation rates of microbiological organisms including cryptosporidium.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: April 12, 2011
    Assignee: Truox, Inc
    Inventor: Roy W. Martin
  • Publication number: 20090218544
    Abstract: The present invention relates to a liquid bleaching composition comprising a hypohalite bleach, a trimethoxy benzoic acid or a salt thereof and a compound selected from the group consisting of bleach-unstable brighteners, and bleach-unstable coloring-agents and mixtures thereof.
    Type: Application
    Filed: May 8, 2009
    Publication date: September 3, 2009
    Applicant: The Procter & Gamble Company
    Inventors: Andrea Briatore, Alessandro Gagliardini, Michael Alan John Moss, Oreste Todini
  • Patent number: 7323118
    Abstract: Composition of Hypochlorous acid characterized because it has the following chemical composition Hypochlorous acid 6.5-7.3% Hydrochloric acid 27.6-28.5% Sodium chloride 13.6-14.2% Sodium hypochlorite 34.8-35.4% Chlorine in solution 7-6.5% Dissolved oxygen 10.5-8.1% The composition of hypochlorous acid has medical application in humans and in veterinary practice, both prophylactic and therapeutic. It can also be applied in antisepsis and sterilization of foods and in the treatment of water and water supply systems. In flower growing is can be used for the disinfection of crops and the elimination of fusarium and sigatoka negra.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: January 29, 2008
    Assignee: Aquilabs S.A.
    Inventor: Justo Leonardo Calderon
  • Patent number: 6793846
    Abstract: The present invention provides a bactericide composition comprising hypochlorous acid or a salt thereof. In particular, the present invention provides a liquid bactericide composition comprising an aqueous solution comprising hypochlorous acid and/or a salt thereof, a surfactant (B) and a pH adjusting agent (C), and having a ph valve in the range of 3 to 8 at 25° C.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: September 21, 2004
    Assignee: Kao Corporation
    Inventors: Kiyoaki Yoshikawa, Yoshihiro Yamazaki, Tetsuya Okano, Shigeru Tamura, Noboru Matsuo, Sumitoshi Ito
  • Publication number: 20030155549
    Abstract: A colored liquid hypochlorite bleach composition is provided, comprising a particulate pigment such as Ultramarine Blue, which is stably suspended in the composition by means of a flocculate, such as calcium soap flocs.
    Type: Application
    Filed: August 12, 2002
    Publication date: August 21, 2003
    Inventors: Kiyoaki Yoshikawa, Yoshihiro Yamazaki, Tetsuya Okano, Shigeru Tamura, Noburo Matsuo, Sumitoshi Ito
  • Patent number: 6333054
    Abstract: A thixotropic, non-cytotoxic, topical hydrogel that contains a proven safe and effective, broad spectrum, antimicrobial agent based on a unique electrolytically derived sodium hypochlorite solution.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: December 25, 2001
    Assignee: Amuchina S.p.A.
    Inventor: Wallace Rogozinski