Patents by Inventor Donald Ervin Steinwandt

Donald Ervin Steinwandt 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).

  • Method of applying silicone caulking compound
    Patent number: 7198822
    Abstract: A method of applying a silicone caulking compound. A first step involves applying a bead of silicone caulking compound to a seam or surface. A second step involves spraying a surfactant on the bead of silicone caulking compound. A third step involves wiping excess silicone caulking compound from the surface. The surfactant applied to the surface “lubricates” the surface to prevent adhesion of the silicone caulking compound to the surface when excess material is wiped away, thereby preventing smearing.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: April 3, 2007
    Inventors: Donald Ervin Steinwandt, John Ruben Johnson