Patents by Inventor Ole Siggaard-Andersen

Ole Siggaard-Andersen 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).

  • Method and capillary tube for treating blood sample
    Patent number: 4308029
    Abstract: Deoxygenation of a blood sample prior to determination of carbon monoxide hemoglobin is performed in a capillary tube containing a dry reducing agent. Ready for use capillary tubes having long storage life contain dry reducing agent and are sealed at both ends. Preferred capillary tubes contain mixture of reducing agent, pH buffer and anticoagulating agent present as a dry material on the interior tube wall.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: December 29, 1981
    Assignee: Radiometer A/S
    Inventor: Ole Siggaard-Andersen