Patents by Inventor Ronald D. Hegardt

Ronald D. Hegardt 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).

  • Answer sheet covering device
    Patent number: 5154616
    Abstract: An apparatus for obstructing a standardized test form from view of all but the test taker. The apparatus permits a test taker to see the necessary portions of the answer sheet but obstructs and obscures the view of answer marks from shallow angles or from a distance.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: October 13, 1992
    Inventors: Ronald D. Hegardt, Scott Baird