Patents by Inventor Benjamin Roelof van Tol

Benjamin Roelof van Tol 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).

  • Delphinium plant named ‘Dolce Vita’
    Patent number: PP13010
    Abstract: A distinct cultivar of Delphinium plant named ‘Dolce Vita’, characterized by its upright plant habit; freely flowering habit; and double violet and blue bi-color flowers.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: September 24, 2002
    Assignee: Witteman + Co. ‘Multiflora’ B.V.
    Inventor: Benjamin Roelof van Tol
  • Delphinium plant named ‘Darwin's Blue Indulgence’
    Patent number: PP13011
    Abstract: A distinct cultivar of Delphinium plant name ‘Darwin's Blue Indulgence’, characterized by its upright plant habit; freely flowering habit; and double blue-colored flowers.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: September 24, 2002
    Assignee: Witteman + Co. ‘Multiflora’ B.V.
    Inventor: Benjamin Roelof van Tol
  • Delphinium plant named ‘Darwin's Pink Indulgence’
    Patent number: PP13065
    Abstract: The new variety of Delphinium, ‘Darwin's Pink Indulgence’ is characterized by its compact growth habit and by its purple violet, fully double flowers that are long blooming and long lasting as a cut flower.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: October 8, 2002
    Assignee: Witteman and Company Multiflora
    Inventor: Benjamin Roelof Van Tol