Patents by Inventor Joseph W. Rogers

Joseph W. Rogers 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).

  • Methods and apparatus for rapid equilibration of dissolved gas composition
    Patent number: 5614416
    Abstract: Disclosed is an apparatus and method of equilibrating the dissolved gas composition of an aqueous fluid to reflect the predetermined gas composition contained in a gas equilibration reservoir. The equilibrated aqueous fluid can be used in a method of determining the concentration of a dissolved gas in a fluid sample. In one embodiment, the disclosed method is used to control the equilibrated gas composition of a calibrant fluid which, in turn, is used to measure the concentration of a dissolved gas, such as oxygen and carbon dioxide, in a sample fluid, such as whole blood.
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: March 25, 1997
    Assignee: I-Stat Corporation
    Inventors: Imants R. Lauks, Raymond J. Pierce, Joseph W. Rogers, Michael P. Zelin
  • Methods and apparatus for rapid equilibration of dissolved gas composition
    Patent number: 5609824
    Abstract: Disclosed is an apparatus and method of equilibrating the dissolved gas composition of an aqueous fluid to reflect the predetermined gas composition contained in a gas equilibration reservoir. The equilibrated aqueous fluid can be used in a method of determining the concentration of a dissolved gas in a fluid sample. In one embodiment, the disclosed method is used to control the equilibrated gas composition of a calibrant fluid which, in turn, is used to measure the concentration of a dissolved gas, such as oxygen and carbon dioxide, in a sample fluid, such as whole blood.
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: March 11, 1997
    Assignee: i-Stat Corporation
    Inventors: Imants R. Lauks, Raymond J. Pierce, Joseph W. Rogers, Michael P. Zelin
  • Methods and apparatus for rapid equilibration of dissolved gas composition
    Patent number: 5605664
    Abstract: Disclosed is an apparatus and method of equilibrating the dissolved gas composition of an aqueous fluid to reflect the predetermined gas composition contained in a gas equilibration reservoir. The equilibrated aqueous fluid can be used in a method of determining the concentration of a dissolved gas in a fluid sample. In one embodiment, the disclosed method is used to control the equilibrated gas composition of a calibrant fluid which, in turn, is used to measure the concentration of a dissolved gas, such as oxygen and carbon dioxide, in a sample fluid, such as whole blood.
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: February 25, 1997
    Assignee: i-STAT Corporation
    Inventors: Imants R. Lauks, Raymond J. Pierce, Joseph W. Rogers, Michael P. Zelin
  • Portable clinical diagnostic instrument
    Patent number: D332833
    Type: Grant
    Filed: July 19, 1990
    Date of Patent: January 26, 1993
    Assignee: I-Stat
    Inventors: Imants R. Lauks, Joseph W. Rogers, John Svezia, Henry J. Wieck, Michael Zelin, Philip Blyskal, Stephen A. Demusz
  • Cartridge for a blood monitoring analyzer
    Patent number: D337164
    Type: Grant
    Filed: July 19, 1990
    Date of Patent: July 6, 1993
    Assignee: I-STAT Corporation
    Inventors: Imants R. Lauks, Joseph W. Rogers, John Svezia, Henry J. Wieck, Michael Zelin, Philip Blyskal