Patents by Inventor Freeman K. Johnson

Freeman K. Johnson 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).

  • Full dwarf hybrid sunflower seed and plant and method of producing hybrid seed
    Patent number: 4527352
    Abstract: This invention relates to a novel full and semi-dwarf hybrid sunflower (Helianthus annuus var. marcocarpus (DC.) Ckll.) (herein H. annuus) seed and a method of producing the hybrid seed. The hybrid sunflower seeds upon growth yield full and semi-dwarf sunflower plants having a reduced internode length. The hybrid seed is produced by cross pollinating a pair of parent plants P.sub.1 and P.sub.2 wherein, in at least one parent substantially all pollen is nonfunctional and at least one parent has gametes with nuclei carrying at least one dominant gene for reduced internode length.
    Type: Grant
    Filed: October 6, 1982
    Date of Patent: July 9, 1985
    Assignee: Freeman K. Johnson
    Inventor: Freeman K. Johnson
  • Semi-dwarf hybrid sunflower seed and plant and method of producing hybrid seed
    Patent number: 4378655
    Abstract: This invention relates to a novel semi-dwarf hybrid sunflower (Helianthus annuus var. macrocarpus (DC.) Ckll. (herein H. annuus) seed and a method of producing the hybrid seed. The hybrid sunflower seed upon growth yields a semi-dwarf sunflower plant having a reduced internode length. The hybrid seed is produced by cross pollinating a pair of parent plants P.sub.1 and P.sub.2 wherein, in at least one parent substantially all pollen is nonfunctional and at least one parent has gametes with nuclei carrying at least one dominant gene for reduced internode length.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: April 5, 1983
    Assignee: Red River Commodities, Inc.
    Inventor: Freeman K. Johnson