Patents by Inventor LeRoy R. Lutz

LeRoy R. Lutz 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 spike and method and apparatus for inserting same into soil
    Patent number: 6843020
    Abstract: A fertilizer spike is insertable into soil utilizing a tool having prongs. The fertilizer spike comprises a fertilizer body comprised of fertilizer material having a base end with an outer surface that converges toward a tip end, in which at least two channels are formed into the fertilizer body, for receiving the prongs of the tool. The fertilizer spike is also provided with a soil abutment surface that is adapted to hold the fertilizer spike in the soil when the tool is pulled away from the fertilizer spike. The prongs release the fertilizer spike as the tool is withdrawn.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: January 18, 2005
    Assignee: Lutz Corporation
    Inventor: LeRoy R. Lutz
  • Fertilizer spike and method and apparatus for inserting same into soil
    Publication number: 20040098910
    Abstract: A fertilizer spike is insertable into soil utilizing a tool having prongs. The fertilizer spike comprises a fertilizer body comprised of fertilizer material having a base end with an outer surface that converges toward a tip end, in which at least two channels are formed into the fertilizer body, for receiving the prongs of the tool. The fertilizer spike is also provided with a soil abutment surface that is adapted to hold the fertilizer spike in the soil when the tool is pulled away from the fertilizer spike. The prongs release the fertilizer spike as the tool is withdrawn.
    Type: Application
    Filed: November 27, 2002
    Publication date: May 27, 2004
    Applicant: Lutz Corporation
    Inventor: LeRoy R. Lutz