Patents by Inventor Dick J. Sievert

Dick J. Sievert 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).

  • Composite masonry block
    Patent number: 5017049
    Abstract: Disclosed is a composite masonry block comprising a substantially rectangular body having a bevelled surface and an interlocking flange. Also disclosed are structure made form the masonry block and methods of making the block.
    Type: Grant
    Filed: July 26, 1990
    Date of Patent: May 21, 1991
    Assignee: Block Systems Inc.
    Inventor: Dick J. Sievert