Patents by Inventor Arfon Goodman-Jones

Arfon Goodman-Jones 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).

  • Apparatus for measuring a decomposable compound in solution
    Patent number: 6521184
    Abstract: Methods and apparatus for measuring the concentration of decomposable substances, such as urea, are disclosed. The disclosed methods include adding a gaseous buffer, such as CO2, to the solution containing the decomposable compound, measuring the conductivity of the solution, decomposing the decomposable compound, measuring the conductivity of the thus-decomposed compound solution, and calculating the differential conductivities between the two measured solutions. The apparatus for carrying out these methods are also disclosed.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: February 18, 2003
    Assignee: Gambro AB
    Inventors: Raymond Edgson, Arfon Goodman-Jones, Bo Olde, Lars-Fride Olsson
  • Method for measuring the concentration of a substance in a solution
    Patent number: 6114176
    Abstract: Methods and apparatus for measuring the concentration of decomposable substances, such as urea, are disclosed. The disclosed methods include adding a gaseous buffer, such as CO.sub.2, to the solution containing the decomposable compound, measuring the conductivity of the solution, decomposing the decomposable compound, measuring the conductivity of the thus-decomposed compound solution, and calculating the differential conductivities between the two measured solutions. The apparatus for carrying out these methods are also disclosed.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: September 5, 2000
    Assignee: Gambro AB
    Inventors: Raymond Edgson, Arfon Goodman-Jones, Bo Olde, Lars-Fride Olsson