Patents by Inventor Roger Calvin Funk

Roger Calvin Funk 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).

  • High analysis fertilizers
    Patent number: 4089670
    Abstract: High analysis fertilizer formulations of a low bulk density powdered ureaform having soluble and insoluble components combined with soluble monopotassium phosphate in which the resulting mixtures are dry homogeneous blends that are free of fillers and binding agents and may be carried in liquid for application to surface or subsurface areas by conventional liquid fertilizer applying equipment.
    Type: Grant
    Filed: May 24, 1977
    Date of Patent: May 16, 1978
    Assignee: The Davey Tree Expert Company
    Inventor: Roger Calvin Funk
  • High analysis fertilizer
    Patent number: 4036627
    Abstract: A high analysis fertilizer formulation of a low bulk density powdered ureaform having soluble and insoluble components combined with soluble monopotassium phosphate in which the resultant mixture is a dry homogeneous blend which is free of fillers and binding agents and may be carried in liquid for application to surface or subsurface areas by conventional liquid fertilizer applying equipment.
    Type: Grant
    Filed: November 21, 1975
    Date of Patent: July 19, 1977
    Assignee: The Davey Tree Expert Company
    Inventor: Roger Calvin Funk