Patents by Inventor Barzin Keramati

Barzin Keramati 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: 11135326
    Abstract: Stable, aqueous solutions of chlorine dioxide and methods for producing stable, aqueous solutions of chlorine dioxide are disclosed. Generally, the chlorine dioxide solutions of the invention are aqueous solutions containing about 1000 ppm by weight or less of total impurities and/or 10 ppm or less of manganese and iron combined. The aqueous chlorine dioxide solutions are storage stable for at least 90 days at 25° C. and maintain at least 75% of the initial chlorine dioxide concentration. Methods of preparing, using and transporting the chlorine dioxide solutions are also disclosed.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: October 5, 2021
    Assignee: CDG ENVIRONMETAL, LLC
    Inventors: Thomas Ellsworth McWhorter, Aaron Rosenblatt, Robert Shay, Barzin Keramati, Peter Kazlas, Madhu Anand, John Peter Hobbs
  • Publication number: 20170136137
    Abstract: Stable, aqueous solutions of chlorine dioxide and methods for producing stable, aqueous solutions of chlorine dioxide are disclosed. Generally, the chlorine dioxide solutions of the invention are aqueous solutions containing about 1000 ppm by weight or less of total impurities and/or 10 ppm or less of manganese and iron combined. The aqueous chlorine dioxide solutions are storage stable for at least 90 days at 25° C. and maintain at least 75% of the initial chlorine dioxide concentration. Methods of preparing, using and transporting the chlorine dioxide solutions are also disclosed.
    Type: Application
    Filed: January 30, 2017
    Publication date: May 18, 2017
    Applicant: CDG ENVIRONMENTAL, LLC
    Inventors: Thomas Ellsworth MCWORTER, Aaron ROSENBLATT, Robert SHAY, Barzin KERAMATI, Peter KAZLAS, Madhu ANAND, John Peter HOBBS
  • Patent number: 9580317
    Abstract: The present invention is for extremely pure solutions of chlorine dioxide, methods for making such solutions and to compositions and methods for storing, shipping and using such solutions. Generally, the chlorine dioxide solutions of the invention are aqueous solutions containing about 2500 ppm or less of total impurities. The chlorine dioxide solution can be prepared by passing dilute highly pure chlorine gas through a bed of substantially solid sodium chloride and contacting the resulting chlorine dioxide gas with a liquid.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: February 28, 2017
    Assignee: CDG ENVIRONMENTAL, LLC
    Inventors: Thomas Ellsworth McWhorter, Aaron Rosenblatt, Robert Shay, Barzin Keramati, Peter Kazlas, Madhu Anand, John Peter Hobbs
  • Patent number: 9302911
    Abstract: The present invention is for extremely pure solutions of chlorine dioxide, methods for making such solutions and to compositions and methods for storing, shipping and using such solutions. Generally, the chlorine dioxide solutions of the invention are aqueous solutions containing about 2500 ppm or less of total impurities. The chlorine dioxide solution can be prepared by passing dilute highly pure chlorine gas through a bed of substantially solid sodium chlorite and contacting the resulting chlorine dioxide gas with a liquid.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: April 5, 2016
    Assignee: CDG Environmental, LLC
    Inventors: Thomas Ellsworth McWhorter, Aaron Rosenblatt, Robert Shay, Barzin Keramati, Peter Kazlas, Madhu Anand, John Peter Hobbs
  • Publication number: 20160058013
    Abstract: The present invention is for extremely pure solutions of chlorine dioxide, methods for making such solutions and to compositions and methods for storing, shipping and using such solutions. Generally, the chlorine dioxide solutions of the invention are aqueous solutions containing about 2500 ppm or less of total impurities. The chlorine dioxide solution can be prepared by passing dilute highly pure chlorine gas through a bed of substantially solid sodium chloride and contacting the resulting chlorine dioxide gas with a liquid.
    Type: Application
    Filed: August 12, 2015
    Publication date: March 3, 2016
    Applicant: CDG Environmental, LLC
    Inventors: Thomas Ellsworth McWhorter, Aaron Rosenblatt, Robert Shay, Barzin Keramati, Peter Kazlas, Madhu Anand, John Peter Hobbs
  • Patent number: 9045339
    Abstract: The present invention is for extremely pure solutions of chlorine dioxide, methods for making such solutions and to compositions and methods for storing, shipping and using such solutions. Generally, the chlorine dioxide solutions of the invention are aqueous solutions containing about 2500 ppm or less of total impurities. The chlorine dioxide solution can be prepare by passing dilute highly pure chlorine gas through a bed of substantially solid sodium chlorite and contacting the resulting chlorine dioxide gas with a liquid.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: June 2, 2015
    Assignee: CDG ENVIORNMENTAL, LLC
    Inventors: Thomas Ellsworth McWhorter, Peter Kazlas, Madhu Anand, John Peter Hobbs, Aaron A. Rosenblatt, Robert H. Shay, Barzin Keramati
  • Patent number: 9045340
    Abstract: The present invention is for extremely pure solutions of chlorine dioxide, methods for making such solutions and to compositions and methods for storing, shipping and using such solutions. Generally, the chlorine dioxide solutions of the invention are aqueous solutions containing about 2500 ppm or less of total impurities. The chlorine dioxide solution can be prepare by passing dilute highly pure chlorine gas through a bed of substantially solid sodium chlorite and contacting the resulting chlorine dioxide gas with a liquid.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: June 2, 2015
    Assignee: CDG ENVIRONMENTAL, LLC
    Inventors: Thomas Ellsworth McWhorter, Peter Kazlas, Madhu Anand, John Peter Hobbs, Aaron A. Rosenblatt, Robert H. Shay, Barzin Keramati
  • Patent number: 9045338
    Abstract: The present invention is for extremely pure solutions of chlorine dioxide, methods for making such solutions and to compositions and methods for storing, shipping and using such solutions. Generally, the chlorine dioxide solutions of the invention are aqueous solutions containing about 2500 ppm or less of total impurities. The chlorine dioxide solution can be prepare by passing dilute highly pure chlorine gas through a bed of substantially solid sodium chlorite and contacting the resulting chlorine dioxide gas with a liquid.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: June 2, 2015
    Assignee: CDG ENVIRONMENTAL, LLC
    Inventors: Thomas Ellsworth McWhorter, Peter Kazlas, Madhu Anand, John Peter Hobbs, Aaron A. Rosenblatt, Robert H. Shay, Barzin Keramati
  • Patent number: 9045341
    Abstract: The present invention is for extremely pure solutions of chlorine dioxide, methods for making such solutions and to compositions and methods for storing, shipping and using such solutions. Generally, the chlorine dioxide solutions of the invention are aqueous solutions containing about 2500 ppm or less of total impurities. The chlorine dioxide solution can be prepare by passing dilute highly pure chlorine gas through a bed of substantially solid sodium chlorite and contacting the resulting chlorine dioxide gas with a liquid.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: June 2, 2015
    Assignee: CDG ENVIRONMENTAL, LLC
    Inventors: Thomas Ellsworth McWhorter, Peter Kazlas, Madhu Anand, John Peter Hobbs, Aaron A. Rosenblatt, Robert H. Shay, Barzin Keramati
  • Publication number: 20120201898
    Abstract: The present invention is for extremely pure solutions of chlorine dioxide, methods for making such solutions and to compositions and methods for storing, shipping and using such solutions. Generally, the chlorine dioxide solutions of the invention are aqueous solutions containing about 2500 ppm or less of total impurities. The chlorine dioxide solution can be prepare by passing dilute highly pure chlorine gas through a bed of substantially solid sodium chloride and contacting the resulting chlorine dioxide gas with a liquid.
    Type: Application
    Filed: February 3, 2012
    Publication date: August 9, 2012
    Applicant: CDG Environmental, LLC.
    Inventors: Thomas Ellsworth McWhorter, Peter Kazlas, Madhu Anand, John Peter Hobbs, Aaron A. Rosenblatt, Robert H. Shay, Barzin Keramati
  • Publication number: 20120201899
    Abstract: The present invention is for extremely pure solutions of chlorine dioxide, methods for making such solutions and to compositions and methods for storing, shipping and using such solutions. Generally, the chlorine dioxide solutions of the invention are aqueous solutions containing about 2500 ppm or less of total impurities. The chlorine dioxide solution can be prepare by passing dilute highly pure chlorine gas through a bed of substantially solid sodium chloride and contacting the resulting chlorine dioxide gas with a liquid.
    Type: Application
    Filed: February 3, 2012
    Publication date: August 9, 2012
    Applicant: CDG Environmental, LLC
    Inventors: Thomas Ellsworth McWhorter, Peter Kazlas, Madhu Anand, John Peter Hobbs, Aaron A. Rosenblatt, Robert H. Shay, Barzin Keramati
  • Publication number: 20120135167
    Abstract: The present invention is for extremely pure solutions of chlorine dioxide, methods for making such solutions and to compositions and methods for storing, shipping and using such solutions. Generally, the chlorine dioxide solutions of the invention are aqueous solutions containing about 2500 ppm or less of total impurities. The chlorine dioxide solution can be prepare by passing dilute highly pure chlorine gas through a bed of substantially solid sodium chloride and contacting the resulting chlorine dioxide gas with a liquid.
    Type: Application
    Filed: February 3, 2012
    Publication date: May 31, 2012
    Applicant: CDG Environmental, LLC
    Inventors: Thomas Ellsworth McWhorter, Peter Kazlas, Madhu Anand, John Peter Hobbs, Aaron A. Rosenblatt, Robert H. Shay, Barzin Keramati
  • Publication number: 20120131887
    Abstract: The present invention is for extremely pure solutions of chlorine dioxide, methods for making such solutions and to compositions and methods for storing, shipping and using such solutions. Generally, the chlorine dioxide solutions of the invention are aqueous solutions containing about 2500 ppm or less of total impurities. The chlorine dioxide solution can be prepare by passing dilute highly pure chlorine gas through a bed of substantially solid sodium chloride and contacting the resulting chlorine dioxide gas with a liquid.
    Type: Application
    Filed: February 3, 2012
    Publication date: May 31, 2012
    Applicant: CDG Environmental, LLC
    Inventors: Thomas Ellsworth McWhorter, Peter Kazlas, Madhu Anand, John Peter Hobbs, Aaron A. Rosenblatt, Robert H. Shay, Barzin Keramati
  • Publication number: 20100209528
    Abstract: The present invention is for extremely pure solutions of chlorine dioxide, methods for making such solutions and to compositions and methods for storing, shipping and using such solutions. Generally, the chlorine dioxide solutions of the invention are aqueous solutions containing about 2500 ppm or less of total impurities. The chlorine dioxide solution can be prepared by passing dilute highly pure chlorine gas through a bed of substantially solid sodium chlorite and contacting the resulting chlorine dioxide gas with a liquid.
    Type: Application
    Filed: November 14, 2006
    Publication date: August 19, 2010
    Applicant: CDG RESEARCH CORPORATION
    Inventors: Thomas Ellsworth McWhorter, Aaron Rosenblatt, Robert Shay, Barzin Keramati, Peter Kazlas, Madhu Anand
  • Publication number: 20070183961
    Abstract: Gaseous mixture of chlorine dioxide and chlorine produced by reacting an inorganic acid with an aqueous solution of an alkali metal chlorate by controlled introduction of the inorganic acid into the aqueous solution of alkali metal chlorate. Inorganic acid passed through a volume of alkali metal chlorate flowing through a horizontal reactor in a plug flow regime results in an enhanced gaseous mixture of chlorine dioxide, chlorine and steam that can be withdrawn as a product stream.
    Type: Application
    Filed: April 11, 2007
    Publication date: August 9, 2007
    Applicant: CDG RESEARCH CORPORATION
    Inventors: Thomas McWhorter, Aaron Rosenblatt, David Rosenblatt, Barzin Keramati
  • Publication number: 20070178021
    Abstract: Gaseous mixture of chlorine dioxide and chlorine produced by reacting an inorganic acid with an aqueous solution of an alkali metal chlorate by controlled introduction of the inorganic acid into the aqueous solution of alkali metal chlorate. Inorganic acid passed through a volume of alkali metal chlorate flowing through a horizontal reactor in a plug flow regime results in an enhanced gaseous mixture of chlorine dioxide, chlorine and steam that can be withdrawn as a product stream.
    Type: Application
    Filed: April 11, 2007
    Publication date: August 2, 2007
    Applicant: CDG RESEARCH CORPORATION
    Inventors: Thomas McWhorter, Aaron Rosenblatt, David Rosenblatt, Barzin Keramati
  • Publication number: 20040258607
    Abstract: Method for producing stable sodium chlorite by pelletization of granular sodium chlorite with metal salt or salts forming hydrates with water of hydration in the pellets being more than 5% of the anhydrous weight of the sodium chlorite. Pelletized sodium chlorite can be used to produce chlorine dioxide gas by passing a dilute mixture of chlorine gas and an inert gas through a bed of the pellets.
    Type: Application
    Filed: July 15, 2004
    Publication date: December 23, 2004
    Inventors: Aaron A. Rosenblatt, Thomas E. McWhorter, Nicholas Franco, Barzin Keramati
  • Patent number: 6824756
    Abstract: Method for producing stable sodium chlorite by pelletization of granular sodium chlorite with metal salt or salts forming hydrates with water of hydration in the pellets being more than 5% of the anhydrous weight of the sodium chlorite. Pelletized sodium chlorite can be used to produce chlorine dioxide gas by passing a dilute mixture of chlorine gas and an inert gas through a bed of the pellets.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: November 30, 2004
    Assignee: CDG Technology, Inc.
    Inventors: Aaron A. Rosenblatt, Thomas E. McWhorter, Nicholas Franco, Barzin Keramati
  • Publication number: 20030215381
    Abstract: Method for producing stable sodium chlorite by pelletization of granular sodium chlorite with metal salt or salts forming hydrates with water of hydration in the pellets being more than 5% of the anhydrous weight of the sodium chlorite. Pelletized sodium chlorite can be used to produce chlorine dioxide gas by passing a dilute mixture of chlorine gas and an inert gas through a bed of the pellets.
    Type: Application
    Filed: May 17, 2002
    Publication date: November 20, 2003
    Inventors: Aaron A. Rosenblatt, Thomas E. McWhorter, Nicholas Franco, Barzin Keramati