Patents by Inventor Eberhard Hayn

Eberhard Hayn 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).

  • Corner glass block
    Patent number: 4636413
    Abstract: A glass block has at least approximately the shape of a sector of a circular cylinder, the side faces forming the sector of the circular cylinder and containing the axis of the cylinder, preferably including an angle of 45.degree. or 90.degree.. The side faces defining the sector of the cylinder and containing the axis of the cylinder are formed with a recess to take up mortar, cement or the like used in bricklaying a wall made of glass blocks.
    Type: Grant
    Filed: December 11, 1985
    Date of Patent: January 13, 1987
    Assignee: Westerwald AG fur Silikatindustrie
    Inventors: Bernd Wittmann, Eberhard Hayn