Patents by Inventor Howard J. Mitchell

Howard J. Mitchell 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).

  • Formulation and production of growing media from green organic material
    Patent number: 5709729
    Abstract: There is disclosed a method of treating all types of green organic material including small timber pieces, shrubbery, grass cuttings and other green organic material mixing various size components of such organic material together with fertilizer nutrients allowing the mixture to stand in a naturally formed windrow or windrows of substantially triangular cross section with a predetermined amount of moisture therein monitoring the temperature of the windrow until such time as there is a significant drop in temperature indicating that the chemical reaction has been completed.
    Type: Grant
    Filed: March 27, 1996
    Date of Patent: January 20, 1998
    Assignee: Environmental and Resource Technology Holdings Pty. Ltd.
    Inventor: Howard J. Mitchell