Patents by Inventor Dennis D. Huffman

Dennis D. Huffman 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).

  • Methods of in vivo radiation measurement
    Patent number: 4976266
    Abstract: Methods of and apparatus for in vivo radiation measurements relay on a MOSFET dosimeter of high radiation sensitivity with operates in both the passive mode to provide an integrated dose detector and active mode to provide an irradiation rate detector. A compensating circuit with a matched unirradiated MOSFET is provided to operate at a current designed to eliminate temperature dependence of the device. Preferably, the MOSFET is rigidly mounted in the end of a miniature catheter and the catheter is implanted in the patient proximate the radiation source.
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: December 11, 1990
    Assignee: United States Department of Energy
    Inventors: Dennis D. Huffman, Robert C. Hughes, Charles A. Kelsey, Richard Lane, Antonio J. Ricco, Jay B. Snelling, Thomas E. Zipperian