Patents by Inventor Mathilde H. Holtrop

Mathilde H. Holtrop 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).

  • Mutant dwarfism gene of petunia
    Patent number: 5523520
    Abstract: This invention relates to a dwarf petunia plant, seed, variety and hybrid. More specifically, the invention relates to a petunia plant having a mutant gene for dwarfism which results in the reduced plant and flower size. The invention also relates to crossing inbreds, varieties and hybrids containing the dwarf gene to produce novel types and varieties of dwarf petunia plants and flowers for ornamental purposes.
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: June 4, 1996
    Assignee: Goldsmith Seeds Inc.
    Inventors: Mary H. Hunsperger, Mathilde H. Holtrop
  • Snapdragon plant named ‘Drayel’
    Patent number: PP13861
    Abstract: A snapdragon cultivar particularly distinguished by yellow flowers, vigorous growth and basal branching.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: June 3, 2003
    Assignee: Goldsmith Seeds Inc.
    Inventor: Mathilde H. Holtrop
  • Snapdragon plant named ‘Drarose’
    Patent number: PP13879
    Abstract: A snapdragon cultivar particularly distinguished by pink flowers, vigorous growth and basal branching.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: June 17, 2003
    Assignee: Goldsmith Seeds Inc.
    Inventor: Mathilde H. Holtrop