Patents by Inventor MacArthur J. Gollifer

MacArthur J. Gollifer 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).

  • Radiography
    Patent number: 4223384
    Abstract: In a computerised tomographic (CAT) X-ray apparatus passage of the radiation through high absorption (bone) regions can change a characteristic of the radiation, such as its frequency spectrum. This can introduce error into the final representation. Correction is provided by computing a first representation, identifying areas of bone and then determining corrections for those areas which can be used to provide a subsequent move accurate representation. Errors caused by scattering can also be compensated in this way.
    Type: Grant
    Filed: June 29, 1977
    Date of Patent: September 16, 1980
    Assignee: EMI Limited
    Inventors: Godfrey N. Hounsfield, MacArthur J. Gollifer