Patents by Inventor Erwin Koppe

Erwin Koppe 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).

  • Stove for burning solid fuel
    Patent number: 4375215
    Abstract: A stove for burning solid fuels such as wood, briquettes, peat and the like includes a stove structure having a front and rear and two side walls. The front and rear walls have a width greater than the width of the two sidewalls, and one of the two sidewalls is provided with an access fire door for feeding the solid fuel into the side of the stove.
    Type: Grant
    Filed: January 26, 1981
    Date of Patent: March 1, 1983
    Inventor: Erwin Koppe