Patents by Inventor Orville M. Ontkean

Orville M. Ontkean 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).

  • Method of forming light weight construction sheet goods from recyclable material
    Patent number: 5853634
    Abstract: A building material and a method for its manufacture is provided wherein cellulosic, polymeric and acid wastes are treated and combined to produce a building panel which demonstrates low weight, high strength and good fire resistance.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: December 29, 1998
    Inventor: Orville M. Ontkean