Patents by Inventor Helmut D. Julinot

Helmut D. Julinot 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).

  • Tray for hydroponic gardening
    Patent number: D245684
    Type: Grant
    Filed: February 6, 1976
    Date of Patent: September 6, 1977
    Inventor: Helmut D. Julinot
  • Hydroponic gardening tray
    Patent number: D259867
    Type: Grant
    Filed: January 22, 1980
    Date of Patent: July 14, 1981
    Assignee: Stewart T. Kenyon
    Inventors: Stewart T. Kenyon, Walter C. Kenyon, Helmut D. Julinot
  • Planter
    Patent number: D259868
    Type: Grant
    Filed: April 9, 1979
    Date of Patent: July 14, 1981
    Assignee: Stewart Kenyon
    Inventor: Helmut D. Julinot