Patents by Inventor Michael A. Van Ells

Michael A. Van Ells 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 and method for measuring blood constituents
    Patent number: 4863265
    Abstract: An apparatus for noninvasive determination of constituent concentrations utilizing light wave absorption measurements and methods for processing signals generated by such measurements.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: September 5, 1989
    Assignee: Mine Safety Appliances Company
    Inventors: Ronald J. Flower, Robert W. Olsen, Michael A. Van Ells, Ralph Flatau