Patents Assigned to A.Y. Laboratories Ltd.
  • Patent number: 10575527
    Abstract: A method and apparatus for producing a biocide from a hypochlorite oxidant and an ammonium salt are provided. The method includes monitoring a control parameter to optimize the ratio between the hypochlorite oxidant and the ammonium salt. The control parameter may be oxidation-reduction potential, conductivity, induction or oxygen saturation.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: March 3, 2020
    Assignee: A.Y. LABORATORIES LTD.
    Inventor: Ayala Barak
  • Patent number: 10571392
    Abstract: A method for quantifying the amount of ammonium bicarbonate in a solid sample of ammonium carbamate is provided. The method includes measuring the FT-IR spectrum of the sample, calculating the IR band maximum for a first band that is common to ammonium carbamate and ammonium bicarbonate and for a second band that is unique to ammonium carbamate, calculating a ratio of the maximum of the second band to the maximum of the first band, and calculating the concentration of ammonium bicarbonate in the sample from a calibration curve.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: February 25, 2020
    Assignee: A.Y. LABORATORIES LTD.
    Inventors: Ayala Barak, Mari Nuopponen
  • Patent number: 10254218
    Abstract: A method for quantifying the amount of ammonium bicarbonate in a solid sample of ammonium carbamate is provided. The method includes measuring the FT-IR spectrum of the sample, calculating the IR band maximum for a first band that is common to ammonium carbamate and ammonium bicarbonate and for a second band that is unique to ammonium carbamate, calculating a ratio of the maximum of the second band to the maximum of the first band, and calculating the concentration of ammonium bicarbonate in the sample from a calibration curve.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: April 9, 2019
    Assignee: A.Y. LABORATORIES LTD.
    Inventors: Ayala Barak, Mari Nuopponen
  • Patent number: 9801384
    Abstract: A method and apparatus for producing a biocide from a hypochlorite oxidant and an ammonium salt are provided. The method includes monitoring a control parameter to optimize the ratio between the hypochlorite oxidant and the ammonium salt. The control parameter may be oxidation-reduction potential, conductivity, induction or oxygen saturation.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: October 31, 2017
    Assignee: A.Y. LABORATORIES LTD.
    Inventor: Ayala Barak
  • Patent number: 9713331
    Abstract: A biocide is formed by mixing at least one of ammonium sulfamate and ammonium carbamate with an aqueous solution of a hypochlorite oxidant at a molar ratio of ammonium to hypochlorite of at least 1:1. The biocide is useful in treating microbial or biofilm growth, pulp and paper process water, cooling tower water, waste water, reclaimed waste water, sludge, colloidal suspensions, irrigation water or a medium having a reducing capacity.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: July 25, 2017
    Assignee: A.Y. LABORATORIES LTD.
    Inventor: Ayala Barak
  • Patent number: 9468214
    Abstract: A biocide is formed by mixing at least one of ammonium sulfamate and ammonium carbamate with an aqueous solution of a hypochlorite oxidant at a molar ratio of ammonium to hypochlorite of at least 1:1. The biocide is useful in treating microbial or biofilm growth, pulp and paper process water, cooling tower water, waste water, reclaimed waste water, sludge, colloidal suspensions, irrigation water or a medium having a reducing capacity.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: October 18, 2016
    Assignee: A.Y. LABORATORIES LTD.
    Inventor: Ayala Barak
  • Patent number: 9179682
    Abstract: A method for controlling microbial or biofilm growth in a medium includes mixing ammonium carbamate or ammonium sulfamate with an aqueous solution of a hypochlorite oxidant to form a biocide having a pH between 9.0 and 11.5, the molar ratio of the ammonium carbamate or ammonium sulfamate to the hypochlorite being at least 1:1; and then applying the biocide to the medium.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: November 10, 2015
    Assignee: A.Y. LABORATORIES LTD.
    Inventor: Ayala Barak
  • Publication number: 20140120183
    Abstract: A biocide is formed by mixing at least one of ammonium sulfamate and ammonium carbamate with an aqueous solution of a hypochlorite oxidant at a molar ratio of ammonium to hypochlorite of at least 1:1. The biocide is useful in treating microbial or biofilm growth, pulp and paper process water, cooling tower water, waste water, reclaimed waste water, sludge, colloidal suspensions, irrigation water or a medium having a reducing capacity.
    Type: Application
    Filed: January 6, 2014
    Publication date: May 1, 2014
    Applicant: A.Y. LABORATORIES LTD.
    Inventor: Ayala BARAK
  • Patent number: 8652496
    Abstract: A biocide is formed by mixing at least one of ammonium sulfamate and ammonium carbamate with an aqueous solution of a hypochlorite oxidant at a molar ratio of ammonium to hypochlorite of at least 1:1. The biocide is useful in treating microbial or biofilm growth, pulp and paper process water, cooling tower water, waste water, reclaimed waste water, sludge, colloidal suspensions, irrigation water or a medium having a reducing capacity.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: February 18, 2014
    Assignee: A.Y. Laboratories Ltd.
    Inventor: Ayala Barak
  • Patent number: 8632794
    Abstract: There are provided methods for controlling microbial or biofilm growth, comprising mixing a hypochlorite oxidant and at least one nitrogen-containing compound or salt thereof selected from a particular group of nitrogen-containing compounds and salts to form a biocide, and applying the biocide. Apparatus for practicing the methods are also provided.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: January 21, 2014
    Assignee: A.Y. Laboratories Ltd.
    Inventor: Ayala Barak
  • Patent number: 8444858
    Abstract: There is provided a method of inhibiting the development of a biofilm adjacent a surface, the method comprising intermittently applying a biofilm inhibiting substance to a collection of microorganisms having biofilm developing potential. Other embodiments are also described.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: May 21, 2013
    Assignee: A.Y. Laboratories Ltd.
    Inventor: Ayala Barak
  • Patent number: 8211318
    Abstract: A biocide is formed by mixing at least one of ammonium sulfamate and ammonium carbamate with an aqueous solution of a hypochlorite oxidant at a molar ratio of ammonium to hypochlorite of at least 1:1. The biocide is useful in treating microbial or biofilm growth, pulp and paper process water, cooling tower water, waste water, reclaimed waste water, sludge, colloidal suspensions, irrigation water or a medium having a reducing capacity.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: July 3, 2012
    Assignee: A. Y. Laboratories Ltd
    Inventor: Ayala Barak
  • Patent number: 8168072
    Abstract: There is provided a method of inhibiting the development of a biofilm adjacent a surface, the method comprising intermittently applying a biofilm inhibiting substance to a collection of microorganisms having biofilm developing potential. Other embodiments are also described.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: May 1, 2012
    Assignee: A.Y. Laboratories Ltd.
    Inventor: Ayala Barak
  • Patent number: 7927496
    Abstract: There is provided a method of inhibiting the development of a biofilm adjacent a surface, the method comprising intermittently applying a biofilm inhibiting substance to a collection of microorganisms having biofilm developing potential. Other embodiments are also described.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: April 19, 2011
    Assignee: A.Y. Laboratories Ltd.
    Inventor: Ayala Barak
  • Publication number: 20100310676
    Abstract: A biocide is formed by mixing at least one of ammonium sulfamate and ammonium carbamate with an aqueous solution of a hypochlorite oxidant at a molar ratio of ammonium to hypochlorite of at least 1:1. The biocide is useful in treating microbial or biofilm growth, pulp and paper process water, cooling tower water, waste water, reclaimed waste water, sludge, colloidal suspensions, irrigation water or a medium having a reducing capacity.
    Type: Application
    Filed: August 20, 2010
    Publication date: December 9, 2010
    Applicant: A.Y. Laboratories Ltd.
    Inventor: Ayala BARAK
  • Patent number: 7837883
    Abstract: There are provided methods for controlling microbial or bioflim growth, comprising mixing a hypochlorite oxidant and at least one nitrogen-containing compound or salt thereof selected from a particular group of nitrogen-containing compounds and salts to form a biocide, and applying the biocide. Apparatus for practicing the methods are also provided.
    Type: Grant
    Filed: February 14, 2005
    Date of Patent: November 23, 2010
    Assignee: A. Y Laboratories Ltd.
    Inventor: Ayala Barak
  • Publication number: 20100183746
    Abstract: A biocide is formed by mixing at least one of ammonium sulfamate and ammonium carbamate with an aqueous solution of a hypochlorite oxidant at a molar ratio of ammonium to hypochlorite of at least 1:1. The biocide is useful in treating microbial or biofilm growth, pulp and paper process water, cooling tower water, waste water, reclaimed waste water, sludge, colloidal suspensions, irrigation water or a medium having a reducing capacity.
    Type: Application
    Filed: March 25, 2010
    Publication date: July 22, 2010
    Applicant: A.Y. Laboratories Ltd.
    Inventor: Ayala BARAK
  • Patent number: 7628929
    Abstract: There is provided a method of inhibiting the development of a biofilm adjacent a surface, the method comprising intermittently applying a biofilm inhibiting substance to a collection of microorganisms having biofilm developing potential. Other embodiments are also described.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: December 8, 2009
    Assignee: A.Y. Laboratories Ltd.
    Inventor: Ayala Barak
  • Patent number: 7189329
    Abstract: There is provided a method of inhibiting the development of a biofilm adjacent a surface, the method comprising intermittently applying a biofilm inhibiting substance to a collection of microorganisms having biofilm developing potential. Other embodiments are also described.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: March 13, 2007
    Assignee: A.Y. Laboratories Ltd.
    Inventor: Ayala Barak
  • Patent number: 7052614
    Abstract: There is provided a method of inhibiting the development of a biofilm adjacent a surface, the method comprising intermittently applying a biofilm inhibiting substance to a collection of microorganisms having biofilm developing potential. There is also provided a method of inhibiting the development of a biofilm adjacent a surface, the method comprising inhibiting the biofilm developing potential of a collection of microorganisms without completely eradicating said collection of microorganisms. Also provided are a system for inhibiting the development of a biofilm, and a method and system for inhibiting the production of an enzyme by a collection of microorganisms.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: May 30, 2006
    Assignee: A.Y. Laboratories Ltd.
    Inventor: Ayala Barak