Patents by Inventor Michael J. Keane

Michael J. Keane 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).

  • Differential surface composition analysis by multiple-voltage electron beam X-ray spectroscopy
    Patent number: 5210414
    Abstract: A method of differential surface composition analysis which allows non-destructive compositional analysis with depths below a solid surface is used to analyze respirable dust particles to determine the presence of hazardous components in the surface of the dust particles. A method of incubating respirable particles in a surrogate pulmonary surfactant system used in combination with the differential surface composition analysis allows determination of surface components which survive or are exposed on the respiratory particles after incubation in the surrogate pulmonary surfactant, representing modification of the partical surface upon deposition in the lung.
    Type: Grant
    Filed: March 29, 1991
    Date of Patent: May 11, 1993
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: William E. Wallace, Michael J. Keane