Patents by Inventor Robert W. Lisa

Robert W. Lisa 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).

  • Mara block
    Patent number: 4843772
    Abstract: A prefabricated glass block partition and window unit is provided and consists of a frame and a plurality of block strips simulating a plurality of individual glass blocks vertically positioned one upon the other. When frame and block strips are assembled together they can be used as a glass block partition or a glass block window.
    Type: Grant
    Filed: October 28, 1987
    Date of Patent: July 4, 1989
    Inventors: Robert W. Lisa, George Spector