Patents by Inventor Bruce Warren Hollis

Bruce Warren Hollis 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
    Patent number: 5821020
    Abstract: The present invention provides a method of assaying a sample of blood or blood components, in particular serum, for the presence of 1,25-dihydroxy-vitamin D comprising removing proteins from the sample, incubating the protein-free sample with a salt of periodic acid, isolating 1,25-dihydroxy-vitamin D from the periodate-treated sample, and determining the concentration of 1,25-dihydroxy-vitamin D.
    Type: Grant
    Filed: July 14, 1995
    Date of Patent: October 13, 1998
    Assignee: NHH Biologics
    Inventor: Bruce Warren Hollis