Patents by Inventor Almon S. Shiu

Almon S. Shiu 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).

  • Computer-controlled miniature multileaf collimator
    Patent number: 5555283
    Abstract: This invention relates to the field of miniature multileaf collimators for use in shaping a radiation beam used in stereotactic radiosurgery And radiotherapy. More particularly, the present invention relates to the use of a computer-controlled miniature multileaf collimator capable of shaping a radiation beam for use in optimal treatment of nonspherical lesions by radiosurgery and radiotherapy.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 10, 1996
    Assignee: Board of Regents of the University of Texas System
    Inventors: Almon S. Shiu, James R. Ewton, Henry E. Rittichier, Jeremy Wong, Samuel S. Tung
  • Tungsten eye shields for electron beam treatment
    Patent number: 5487394
    Abstract: An eye shield for use in electron beam treatment of eyelid tumors. The use of tungsten provides an eye shield which is sufficiently thin to allow insertion over the eye and underneath the eyelid while providing sufficient shielding to protect against ocular damage when electron beams of up to nine million electron volts are used. A coating applied to the outer surface of the shield prevents burning of the tissues at the eyelid-shield interface resulting from backscattered electrons.
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: January 30, 1996
    Assignee: The Board of Regents of the University of Texas System
    Inventors: Almon S. Shiu, Samuel S. Tung, Robert J. Gastorf