Patents by Inventor C. Frederick Bowser

C. Frederick Bowser 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).

  • Electrical tape boundary sensor apparatus
    Patent number: 4840377
    Abstract: A system is provided that analyzes the output voltage caused by the impact of an object, particularly a tennis ball, relative to a boundry line. It combines sensors mounted on a tennis court's surface with computer graphics and data acquisition software that indicates to a tennis umpire, line judge or player that the ball or other object has struck a boundary line.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: June 20, 1989
    Assignee: C. Frederick Bowser
    Inventors: C. Frederick Bowser, John L. Kurtz