Patents by Inventor Zelimir Krokar

Zelimir Krokar 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).

  • System and method for positioning an object through use of a rotating laser metrology system
    Patent number: 7298495
    Abstract: A motion system includes a first stage that is configured to rotate about a first axis and a second stage coupled to the first stage that includes an object carrier adapted to position an object in at least one other axis. The motion system has a novel arrangement of laser interferometer elements and axes of motion. The arrangement permits accurate and precise measurement of a position of the object carrier in up to three (or more) axes of motion even as the first stage of the motion system is tilted through relatively large angles. The novel arrangement of the axes of motion also enables very precise control of the position of the object carrier even at high tilt angles.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: November 20, 2007
    Inventors: George C. Lewis, Zelimir Krokar
  • System and method for positioning an object
    Publication number: 20070023684
    Abstract: A motion system includes a first stage that is configured to rotate about a first axis and a second stage coupled to the first stage that includes an object carrier adapted to position an object in at least one other axis. The motion system has a novel arrangement of laser interferometer elements and axes of motion. The arrangement permits accurate and precise measurement of a position of the object carrier in up to three (or more) axes of motion even as the first stage of the motion system is tilted through relatively large angles. The novel arrangement of the axes of motion also enables very precise control of the position of the object carrier even at high tilt angles.
    Type: Application
    Filed: June 23, 2005
    Publication date: February 1, 2007
    Inventors: George Lewis, Zelimir Krokar