Patents by Inventor Petrus J. Akerboom

Petrus J. Akerboom 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).

  • Aster plant named ‘M.C. Snowy’
    Patent number: PP12211
    Abstract: A distinct cultivar of potted Aster plant named ‘M.C. Snowy’, characterized by its medium plant height at flowering; freely and uniform flowering; decorative inflorescence form with white ray florets; and good post-production longevity.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: November 20, 2001
    Assignee: De Nachtvlinder B.V.
    Inventor: Petrus J. Akerboom
  • Aster plant named ‘Pink Milka’
    Patent number: PP12461
    Abstract: A distinct cultivar of Aster plant named ‘Pink Milka’, characterized by its freely and uniform flowering; decorative inflorescence form with light pink ray florets; and good post-production longevity.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: March 12, 2002
    Assignee: De Nachtvlinder B.V.
    Inventor: Petrus J. Akerboom
  • Aster plant named ‘Karmijn Milka’
    Patent number: PP12466
    Abstract: A distinct cultivar of Aster plant named ‘Karmijn Milka’, characterized by its freely and uniform flowering; decorative inflorescence form with purple ray florets; and good post-production longevity.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: March 19, 2002
    Assignee: De Nachtvlinder B.V.
    Inventor: Petrus J. Akerboom
  • Aster plant named ‘Dark Milka’
    Patent number: PP12932
    Abstract: A distinct cultivar of Aster plant named ‘Dark Milka’, characterized by its freely and uniform flowering; decorative inflorescence form with dark purple ray florets; and good post-production longevity.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: September 10, 2002
    Assignee: De Nachtvlinder B.V.
    Inventor: Petrus J. Akerboom
  • Aster plant named ‘Pretty Wendy’
    Patent number: PP18539
    Abstract: A new and distinct Aster plant cultivar is disclosed, characterized by a narrowly elliptic leafshape, more than two whorls of ray florets and a pure white ray floret color.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: March 4, 2008
    Assignee: De NachTVlinder B.V.
    Inventor: Petrus J. Akerboom
  • Aster plant named ‘Blue Diamond’
    Patent number: PP19449
    Abstract: A new and distinct cultivar of Aster plant named ‘Blue Diamond’ characterized by its uniform, upright and strong flowering stems; uniform and freely flowering habit; and decorative-type inflorescences with violet-colored ray florets.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: November 18, 2008
    Assignee: NachtVlinder B.V.
    Inventor: Petrus J. Akerboom
  • Aster plant named White Butterfly
    Patent number: PP7397
    Abstract: An Aster plant named White Butterfly particularly characterized by its cupped capitulum form; daisy capitulum type; white ray floret color; diameter across face of capitulum of 34 to 35 mm at maturity; strong, well branched flower stems; and many capitula per inflorescence on short pedicels.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: December 18, 1990
    Inventors: Zelimir K. Tvrtkovic-Sahin, Petrus J. Akerboom
  • Aster plant named Blue Butterfly
    Patent number: PP7399
    Abstract: An Aster plant named Blue Butterfly particularly characterized by its cupped capitulum form; daisy capitulum type; violet-blue ray floret color; diameter across face of capitulum of 26 to 30 mm at maturity; strong, well branched flower stems; and many capitula per inflorescence on short pedicels.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: December 18, 1990
    Inventors: Zelimir K. Tvrtkovic-Sahin, Petrus J. Akerboom
  • Aster plant named Rose Butterfly
    Patent number: PP7400
    Abstract: An Aster plant named Rose Butterfly particularly characterized by its cupped capitulum form; daisy capitulum type; red-purple ray floret color; diameter across face of capitulum of 25 to 27 mm at maturity; strong, well branched flower stems; and many capitula per inflorescence on short pedicels.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: December 18, 1990
    Inventors: Zelimir K. Tvrtkovic-Sahin, Petrus J. Akerboom
  • Aster plant named Pink Butterfly
    Patent number: PP7401
    Abstract: An Aster plant named Pink Butterfly particularly characterized by its cupped capitulum form; daisy capitulum type; light pink ray floret color; diameter across face of capitulum of 29 to 32 mm at maturity; strong, well branched flower stems; and many capitula per inflorescence on short pedicels.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: December 18, 1990
    Inventors: Zelimir K. Tvrtkovic-Sahin, Petrus J. Akerboom
  • Aster plant named Dark Blue Butterfly
    Patent number: PP8874
    Abstract: A distinct cultivar of aster plant named Dark Blue Butterfly, characterized by its cupped capitulum form; daisy capitulum type; dark violet-blue ray floret color; diameter across face of capitulum of 27 to 30 mm at maturity; strong, well branched flower stems; dark green leaves, and many capitula per inflorescence on short pedicels.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: August 30, 1994
    Assignee: DeNachtvlinder B.V.
    Inventors: Zelimir K. Tvrtkovic-Sahin, Petrus J. Akerboom
  • Aster plant named Casablanca
    Patent number: PP8875
    Abstract: A distinct cultivar of aster plant named Casablanca, particularly characterized by its cupped capitulum form; daisy capitulum type with strong petals; white ray floret color; diameter across face of capitulum of 34 to 35 mm at maturity; strong, well branched flower stems; strong leaves, with low susceptibility to yellowing, and good tolerance to foliage diseases.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: August 30, 1994
    Assignee: DeNachtvlinder B.V.
    Inventors: Zelimir K. Tvrtkovic-Sahin, Petrus J. Akerboom
  • Aster plant named `Red Monarch`
    Patent number: PP10062
    Abstract: A distinct cultivar of Aster plant named Red Monarch, characterized by its moderately vigorous growth rate; freely branching plant habit; small daisy-type inflorescences; red purple ray florets; numerous inflorescences per plant; and good container and garden performance.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: October 14, 1997
    Assignee: De Nachtvlinder B.V.
    Inventor: Petrus J. Akerboom
  • Aster plant named `Milka`
    Patent number: PP10602
    Abstract: The new aster variety `Milka` is very short to short in height as flowering commences; produces leaves that are elliptic in shape, medium to long in length, and dark green in color; and has a flower head with many ray florets that are purple in color and are narrowly elliptic in shape.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: September 15, 1998
    Assignee: De Nachtvlinder B.V.
    Inventor: Petrus J. Akerboom
  • Aster plant named `Karmijn`
    Patent number: PP10624
    Abstract: A new and distinct cultivar of aster plant designated `Karmijn` is short in height as flowering commences; produces dark green leaves without anthocyanin that are obovate in shape, and a flower head that is small to medium in size with many purple-violet ray florets that are narrowly elliptic in shape.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: September 29, 1998
    Assignee: De Nachtvlinder B.V.
    Inventor: Petrus J. Akerboom
  • Aster plant named `Parade`
    Patent number: PP10679
    Abstract: The new aster cultivar `Parade` produces medium-sized flower heads with many medium length ray florets which have a distinctive purple color; an involucre that is long and funnel-shaped; and elliptic-shaped leaves that are medium-green in color and do not contain anthocyanin.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: November 10, 1998
    Assignee: De Nachtvlinder B.V.
    Inventor: Petrus J. Akerboom
  • Aster plant named `Peter's White`
    Patent number: PP10783
    Abstract: A new and distinct cultivar of aster plant named `Peter's White`, characterized by its white ray floret color; short flowering height; elliptic-linear shaped leaved which are medium to long in length, dark green in color and sometimes with a slight anthocyanin coloration; first flower heads spread along the axis; medium to large flower heads with many ray florets; medium to long ray florets that are narrowly elliptic in shape; long, cylindrical shaped involucre; and late flowering.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: February 9, 1999
    Assignee: De Nachtvlinder B.V.
    Inventor: Petrus J. Akerboom