Patents by Inventor Josephine S. W. Tsang

Josephine S. W. Tsang 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).

  • Kit for decomposing organophosphorus compounds
    Patent number: 8722956
    Abstract: Methods and kits for decomposing organophosphorus compounds in non-aqueous media at ambient conditions are described. Insecticides, pesticides, and chemical warfare agents can be quickly decomposed to non-toxic products. The method comprises combining the organophosphorus compound with a non-aqueous solution, preferably an alcohol, comprising metal ions and at least a trace amount of alkoxide ions. In a first preferred embodiment, the metal ion is a lanthanum ion. In a second preferred embodiment, the metal ion is a transition metal.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: May 13, 2014
    Assignee: Queen's University at Kingston
    Inventors: R. Stanley Brown, Alexei A. Neverov, Josephine S. W. Tsang
  • Method of Decomposing Organophosphorus Compounds
    Publication number: 20110253580
    Abstract: Methods and kits for decomposing organophosphorus compounds in non-aqueous media at ambient conditions are described. Insecticides, pesticides, and chemical warfare agents can be quickly decomposed to non-toxic products. The method comprises combining the organophosphorus compound with a non-aqueous solution, preferably an alcohol, comprising metal ions and at least a trace amount of alkoxide ions. In a first preferred embodiment, the metal ion is a lanthanum ion. In a second preferred embodiment, the metal ion is a transition metal.
    Type: Application
    Filed: January 24, 2011
    Publication date: October 20, 2011
    Inventors: R. Stanley Brown, Alexei A. Neverov, Josephine S.W. Tsang
  • Method of decomposing organophosphorus compounds
    Patent number: 7875739
    Abstract: Methods and kits for decomposing organophosphorus compounds in non-aqueous media at ambient conditions are described. Insecticides, pesticides, and chemical warfare agents can be quickly decomposed to non-toxic products. The method comprises combining the organophosphorus compound with a non-aqueous solution, preferably an alcohol, comprising metal ions and at least a trace amount of alkoxide ions. In a first preferred embodiment, the metal ion is a lanthanum ion. In a second preferred embodiment, the metal ion is a transition metal.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: January 25, 2011
    Assignee: Queen's University at Kingston
    Inventors: R. Stanley Brown, Alexei A. Neverov, Josephine S. W. Tsang
  • Method of decomposing organophosphorus compounds
    Patent number: 7214836
    Abstract: Methods and kits for decomposing organophosphorus compounds in non-aqueous media at ambient conditions are described. Insecticides, pesticides, and chemical warfare agents can be quickly decomposed to non-toxic products. The method comprises combining the organophosphorus compound with a non-aqueous solution, preferably an alcohol, comprising metal ions and at least a trace amount of alkoxide ions. In a first preferred embodiment, the metal ion is a lanthanum ion. In a second preferred embodiment, the metal ion is a transition metal.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: May 8, 2007
    Assignee: Queen's University at Kingston
    Inventors: R. Stanley Brown, Alexei A. Neverov, Josephine S. W. Tsang
  • Method of decomposing organophosphorus compounds
    Publication number: 20040230082
    Abstract: Methods and kits for decomposing organophosphorus compounds in non-aqueous media at ambient conditions are described. Insecticides, pesticides, and chemical warfare agents can be quickly decomposed to non-toxic products. The method comprises combining the organophosphorus compound with a non-aqueous solution, preferably an alcohol, comprising metal ions and at least a trace amount of alkoxide ions. In a first preferred embodiment, the metal ion is a lanthanum ion. In a second preferred embodiment, the metal ion is a transition metal.
    Type: Application
    Filed: March 12, 2004
    Publication date: November 18, 2004
    Inventors: R. Stanley Brown, Alexei A. Neverov, Josephine S.W. Tsang