Patents by Inventor Stanley Woodrow Johnsen

Stanley Woodrow Johnsen 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).

  • Multi-leaf collimator with leaves formed of different materials
    Patent number: 7555103
    Abstract: A multi-leaf collimator includes a number of independently adjustable leaves. Adjacent leaves overlap to prevent an incident beam of radiation from passing through a gap between them. The overlapping portions of the leaves are made of a first material, while the non-overlapping portions of the leaves are made of a second, different material.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: June 30, 2009
    Assignee: Varian Medical Systems, Inc.
    Inventor: Stanley Woodrow Johnsen
  • MULTI-LEAF COLLIMATOR WITH LEAVES FORMED OF DIFFERENT MATERIALS
    Publication number: 20080267356
    Abstract: A multi-leaf collimator includes a number of independently adjustable leaves. Adjacent leaves overlap to prevent an incident beam of radiation from passing through a gap between them. The overlapping portions of the leaves are made of a first material, while the non-overlapping portions of the leaves are made of a second, different material.
    Type: Application
    Filed: July 7, 2008
    Publication date: October 30, 2008
    Inventor: Stanley Woodrow JOHNSEN
  • Multi-leaf collimator with leaves formed of different materials
    Patent number: 7397901
    Abstract: A multi-leaf collimator includes a number of independently adjustable leaves. Adjacent leaves overlap to prevent an incident beam of radiation from passing through a gap between them. The overlapping portions of the leaves are made of a first material, while the non-overlapping portions of the leaves are made of a second, different material.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: July 8, 2008
    Assignee: Varian Medical Systems Technologies, Inc.
    Inventor: Stanley Woodrow Johnsen