Patents by Inventor Thomas W. Dreschel

Thomas W. Dreschel 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).

  • Plant nutrient delivery system having a porous tubular member
    Patent number: 4926585
    Abstract: A tubular membrane plant growth unit is described. The unit includes a tubular pipe with an opening in its wall. A tubular porous member is situated inside of the pipe. The member and pipe are arranged to provide a space between them for a seed to be positioned so that the stem of the plant grows outwardly through the opening and the roots of the plant grow in the space between the member and pipe. The unit is useful for hydroponic growth of the plant.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: May 22, 1990
    Assignee: The Bionetics Corporation
    Inventor: Thomas W. Dreschel