Patents by Inventor John J. Feildmeier

John J. Feildmeier 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).

  • Unfiltered radiation therapy
    Patent number: 9480859
    Abstract: This is a new technique of producing high energy X-rays for radiation therapy at a patient's level. The dose delivery system uses a linear accelerator with no flattening filter. The technique improves patient radiation therapy by reducing radiation scattered to surrounding normal tissue and reducing electron contamination. It increases dose rate to shorten treatment time. The flattening filter reduces the efficiency of the beam by reducing the fluence and increasing scattered radiation. This technique involves removal of the flattening filter. It uses inverse planning to shape the dose distribution.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: November 1, 2016
    Assignee: The University of Toledo
    Inventors: E. Ismael Parsai, John J. Feildmeier
  • Unfiltered Radiation Therapy
    Publication number: 20160236010
    Abstract: This is a new technique of producing high energy X-rays for radiation therapy at a patient's level. The dose delivery system uses a linear accelerator with no flattening filter. The technique improves patient radiation therapy by reducing radiation scattered to surrounding normal tissue and reducing electron contamination. It increases dose rate to shorten treatment time. The flattening filter reduces the efficiency of the beam by reducing the fluence and increasing scattered radiation. This technique involves removal of the flattening filter. It uses inverse planning to shape the dose distribution.
    Type: Application
    Filed: April 20, 2016
    Publication date: August 18, 2016
    Applicant: The University of Toledo
    Inventors: E. Ismael Parsai, John J. Feildmeier