Patents by Inventor William H. Heinhuis

William H. Heinhuis 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).

  • Paving and floor block composition and method of production
    Patent number: 4381328
    Abstract: A composition and method for forming paving and floor blocks suitable for use on industrial floors and the like in which the finished blocks are water and abrasion resistant. The composition includes wood particles and formaldehyde resin and may include paraffin base wax for increased mold release characteristics, as well as pigments for block coloration. The method includes mixing the materials of the composition, pouring the composition into a mold, compressing the composition in the mold, and baking the mold with composition therein to cure the mixture and form the block.
    Type: Grant
    Filed: September 11, 1981
    Date of Patent: April 26, 1983
    Assignee: Industrial Wood Products, Inc.
    Inventors: Matthew R. Bunner, William H. Heinhuis