Patents by Inventor Walter Opanasenko

Walter Opanasenko 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).

  • Patent number: 5520298
    Abstract: A method of decorating concrete including the steps of mixing water, aggregate and cement to provide mortar, pouring the mortar into a form and allowing it to cure and harden into a concrete block having an exterior surface, and applying sulfate to a selected portion of the block to color the surface of the block to a predetermined depth while the mortar is being cured.
    Type: Grant
    Filed: September 28, 1993
    Date of Patent: May 28, 1996
    Inventor: Walter Opanasenko