Patents by Inventor George E. Osburn

George E. Osburn 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).

  • Fertilizer stick
    Patent number: 4014675
    Abstract: This invention relates to a fertilizer stick composed of water soluble thermoplastic material and dispersed therein about 10 to about 80% of fertilizer material. The fertilizer stick gradually dissolves when placed in a potting medium or soil to supply plant growth nutrients to the roots of a plant.
    Type: Grant
    Filed: December 5, 1974
    Date of Patent: March 29, 1977
    Assignee: Hercules Incorporated
    Inventor: George E. Osburn