Patents by Inventor Robert J. Roberson

Robert J. Roberson 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).

  • Daylily cultivar named Aztec Yellow
    Patent number: PP7409
    Abstract: A new variety of daylily distinguished by its clear, unspotted, lemon-yellow color, and particularly characterized by its consistent ability to increase eight to twelve times per month under tissue culture laboratory propagation procedures, a character that is very uncommon for daylily propagation on a commercial scale. This new daylily cultivar has the further advantages of a very hardy growth habit when grown in the northern United States climate zones and it withstands very well the cold winter seasons.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: January 1, 1991
    Assignee: American Daylily and Perennials
    Inventor: Robert J. Roberson
  • Daylily named Black Eyed Stella
    Patent number: PP7909
    Abstract: A new daylily cultivar having a profuse production of relatively small flowers having a generally buff yellow color and distinguished by an annular dark red band at its mid-portion surrounding a golden throat having a lime green heart; this plant being particularly characterized by a habit of blooming continuously through upwards of 100 days per year from March until frost in USDA climate zone 10 and mid-May through Fall in climate zone 6.
    Type: Grant
    Filed: June 14, 1990
    Date of Patent: July 14, 1992
    Inventor: Robert J. Roberson