Patents by Inventor Hans Dofferhoff

Hans Dofferhoff 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).

  • GENTIANA PLANT NAMED 'MARSHA'
    Publication number: 20060070152
    Abstract: A new cultivar of Gentian, Gentiana makinoi ‘Marsha’, characterized by its large, deep blue flowers borne on thick, strong stems combined with a plant habit that is compact, short and uniform in height.
    Type: Application
    Filed: September 27, 2004
    Publication date: March 30, 2006
    Inventor: Hans Dofferhoff
  • Gentiana plant named ‘Marsha’
    Patent number: PP16562
    Abstract: A new cultivar of Gentian, Gentiana makinoi ‘Marsha’, characterized by its large, deep blue flowers borne on thick, strong stems combined with a plant habit that is compact, short and uniform in height.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: May 23, 2006
    Inventor: Hans Dofferhoff
  • Gentiana plant named ‘magic purple’
    Patent number: PP19809
    Abstract: A new cultivar of Gentiana makinoi named ‘Magic Purple’, characterized by its large, deep violet blue flowers borne on thick, strong, dark purple-black stems combined with a uniform and upright plant, a vigorous growth habit, and suitability for use as a cut flower.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: March 10, 2009
    Inventor: Hans Dofferhoff
  • plant named ‘Blue Magic’
    Patent number: PP20704
    Abstract: A new cultivar of Gentiana makinoi named ‘Blue Magic’, characterized by its numerous light blue flowers borne on well-branched stems, its compact plant habit, and its early flowering season in mid early to mid summer.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: February 2, 2010
    Inventor: Hans Dofferhoff
  • plant named ‘White Magic’
    Patent number: PP21759
    Abstract: A new cultivar of Gentiana makinoi named ‘White Magic’, characterized by its flowers that are clear white in color with specs of yellow-green, its dwarf and compact plant habit, and its abundance of flowers produced from May to September in The Netherlands if spent blooms are removed.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: March 1, 2011
    Inventor: Hans Dofferhoff
  • plant named ‘Blue Star’
    Patent number: PP27016
    Abstract: A new cultivar of Gentiana makinoi plant named ‘Blue Star’ that is characterized by its upright and globular plant habit, its violet-blue flowers, its free flowering plant habit, and its long bloom period lasting for 8 to 12 weeks from mid-July to mid-September in The Netherlands.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: August 2, 2016
    Assignee: KWEKERIJ DE BOEZEM B.V.
    Inventor: Hans Dofferhoff
  • plant named ‘Amor’
    Patent number: PP27119
    Abstract: A new cultivar of Helleborus, ‘Amor’, that is characterized by its early flowering habit; blooming for 8 weeks beginning in late fall in The Netherlands, its large flowers up to 6 cm in diameter that are reddish purple in color and yellow-green at the base, and its large and durable leaves.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: August 30, 2016
    Assignee: KWEKERIJ DE BOEZEM B.V.
    Inventor: Hans Dofferhoff
  • plant named ‘B10’
    Patent number: PP34048
    Abstract: A new cultivar of Hydrangea paniculata plant named ‘B10’ that is characterized by its broadly obovate and upright growth habit, its compact and short plant habit, its very conical inflorescences that are white in color and turn pink in autumn, and its foliage that is dark green and sturdy.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: March 22, 2022
    Assignee: GREENWOOD INVESTMENTS B.V.
    Inventor: Hans Dofferhoff
  • plant named ‘Bee Green’
    Patent number: PP34526
    Abstract: A new cultivar of Hydrangea paniculata plant named ‘Bee Green’ that is characterized by its inflorescences with sterile flower sepals that are light green in color that change to dark pink-red in color in autumn, its sturdy branches that do not lodge, its se panicles with firm sterile flowers, and its healthy foliage that has been observed to be disease and pest free.
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: August 30, 2022
    Assignee: GREENWOOD INVESTMENTS B.V.
    Inventors: Hans Dofferhoff, Mike Dofferhoff