Patents by Inventor Alois Goertz

Alois Goertz 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).

  • Unitary foam gravel roof covering
    Patent number: 5119611
    Abstract: A sprayed closed cell foam roof is prepared by applying the foam directly to the roof deck and layering the foam with sufficient gravel to prevent ultraviolet light deterioration of the foam. The roof is devoid of the waterproof layer conventional in foam roofs that leads to leaks and other failures common to such roofs.
    Type: Grant
    Filed: April 30, 1990
    Date of Patent: June 9, 1992
    Inventor: Alois Goertz
  • Unitary foam/gravel roof
    Patent number: 4947603
    Abstract: A sprayed closed cell foam roof is prepared by applying the foam directly to the entire roof deck and layering the foam with sufficient gravel to prevent ultraviolet light deterioration of the foam. The roof is devoid of the waterproof layer conventional in foam roofs that leads to leaks and other failures common to such roofs.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: August 14, 1990
    Inventor: Alois Goertz