Patents by Inventor Pieter Kolster

Pieter Kolster 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).

  • Cotinus plant named ‘Kolcot’
    Patent number: PP14120
    Abstract: A new and distinct cultivar of Cotinus plant named ‘Kolcot’, characterized by its upright and outwardly spreading plant habit; freely branching growth habit; dark green-colored leaves; early and freely flowering habit; and large showy and feathery inflorescences.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: September 2, 2003
    Assignee: Gebr. Kolster B.V.
    Inventor: Pieter Kolster
  • plant named ‘White Lady’
    Patent number: PP22761
    Abstract: A new and distinct cultivar of Potentilla plant named ‘White Lady’, characterized by its upright and outwardly spreading plant habit; freely branching habit; large white-colored flowers; long flowering period; and good garden performance.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: May 29, 2012
    Assignee: Spring Meadow Nursery, Inc.
    Inventor: Pieter Kolster
  • plant named ‘Red Lady’
    Patent number: PP22767
    Abstract: A new and distinct cultivar of Potentilla plant named ‘Red Lady’, characterized by its upright and somewhat outwardly spreading plant habit; freely branching habit; large red-colored flowers that maintain red coloration during the summer; and good garden performance.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: June 5, 2012
    Assignee: Spring Meadow Nursery, Inc.
    Inventor: Pieter Kolster
  • plant named ‘Hokomapfloy’
    Patent number: PP35814
    Abstract: A new cultivar of Hydrangea macrophylla plant named ‘Hokomapfloy’ that is characterized by its compact, densely branched and rounded plant habit, its clear pink inflorescences that as also perform well under bluing conditions, its mophead inflorescences with a hard (sturdy) texture, its suitability as a potted plant and for cut flowers, and its unique cup-shaped sterile flowers.
    Type: Grant
    Filed: July 26, 2023
    Date of Patent: May 21, 2024
    Assignees: KOLSTER HOLDING BV, HORTEVE BREEDING BV
    Inventors: Peter Rudolf Kolster, Cornelis Pieter Eveleens