Patents by Inventor Frederick Schoenberger

Frederick Schoenberger 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 energy saver
    Patent number: 4520259
    Abstract: An electrical system for providing an energy load regulator for use with electric clothes dryers and electric hot water tanks. The load regulator cycles the heating element within the dryer or hot water tank for predetermined periods while the appliance remains in an operative stage throughout the on and off cycles of the heating element.
    Type: Grant
    Filed: February 14, 1983
    Date of Patent: May 28, 1985
    Inventor: Frederick Schoenberger