Patents by Inventor Philip F. Judy

Philip F. Judy 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).

  • Method and system for in vivo measurement of bone tissue using a two level energy source
    Patent number: 3996471
    Abstract: Methods and apparatus are provided for radiologically determining the bone mineral content of living human bone tissue independently of the concurrent presence of adipose and other soft tissues. A target section of the body of the subject is irradiated with a beam of penetrative radiations of preselected energy to determine the attenuation of such beam with respect to the intensity of each of two radiations of different predetermined energy levels. The resulting measurements are then employed to determine bone mineral content according to the following relationship:I = (I.sub.o) exp [(.mu.BM.sup.M BM) - (.mu.ST.sup.M ST)]wherein I.sub.o is the unattentuated intensity of the radiations in the beam, .mu. is the mass attenuation coefficient, M is mass in g/cm.sup.2.
    Type: Grant
    Filed: March 11, 1975
    Date of Patent: December 7, 1976
    Inventors: James C. Administrator of the National Aeronautics and Space Admministration, with respect to an invention of Fletcher, John R. Cameron, Philip F. Judy