Patents by Inventor John Kamerud

John Kamerud 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).

  • Vitamin D assay
    Publication number: 20040132104
    Abstract: A method of assaying a sample of blood or blood components for the presence of 25-hydroxy-vitamin D comprising: (a) lowering the pH of the sample to 5.5 or less to dissociate the 25-hydroxy-vitamin D from vitamin D binding proteins; and (b) determining the concentration of 25-hydroxy-vitamin D in the sample. The vitamin D binding proteins are not removed from the sample.
    Type: Application
    Filed: November 12, 2003
    Publication date: July 8, 2004
    Inventors: James L. Sackrison, Andrew Miller, John Kamerud, Diana L. Ersfeld, Gregory T. Olson, Gordon D. MacFarlane