Patents by Inventor William D. Kraft

William D. Kraft 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).

  • Free response test grading method
    Patent number: 4978305
    Abstract: A method and system for grading free response tests including the use of highly accurate machine-readable data codes to uniquely associate test-taker, test and reader/grader, and a portable sensing device which stores codes read by the device for subsequent entry into a host computer. The method permits multiple readers/graders to evaluate the same test without one reader/grader influencing another, while reducing paper handling and key entry of data inherent in large volume paper and pencil testing techniques.
    Type: Grant
    Filed: June 6, 1989
    Date of Patent: December 18, 1990
    Assignee: Educational Testing Service
    Inventor: William D. Kraft