Patents by Inventor Guenter Duemmen

Guenter Duemmen 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).

  • Patent number: PP6708
    Abstract: A new and distinct geranium plant known by the cultivar name Plaisire is characterized by a large umbel, bright pink flowers, the color of the flower does not fade through high intensity of sunlight, strong peduncles, and slight zonation of the foliage.
    Type: Grant
    Filed: October 21, 1987
    Date of Patent: March 28, 1989
    Inventor: Guenter Duemmen
  • Patent number: PP6716
    Abstract: A new and distinct geranium plant known by the cultivar name Praeludium is characterized by an intensive-red colored flower, a semi-double flower form, a dark green foliage with a slight zonation, a robust foliage, a large umbel, and a good rooting pattern.
    Type: Grant
    Filed: October 21, 1987
    Date of Patent: April 4, 1989
    Inventor: Guenter Duemmen
  • Patent number: PP6717
    Abstract: A new and distinct geranium plant known by the cultivar name Feeling is characterized by a bright lilac colored flower, semi-doubled flower form, white color in the middle of the flower, dark green foliage with good durability under outdoor summer conditions, and a good branching pattern.
    Type: Grant
    Filed: October 21, 1987
    Date of Patent: April 4, 1989
    Inventor: Guenter Duemmen
  • Patent number: PP6761
    Abstract: A new and distinct geranium plant known by the cultivar name Serenade is characterized by a large umbel, a large diameter of the corolla, strong zonation of the foliage, and dark green foliage.
    Type: Grant
    Filed: October 21, 1987
    Date of Patent: April 25, 1989
    Inventor: Guenter Duemmen
  • Patent number: PP7059
    Abstract: A new and distinct geranium plant known by the cultivar name Duerom is characterized by a new color, dark foliage with zonation, very good durability under outdoor summer conditions, and a great number of large umbels with many flowers.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: November 28, 1989
    Inventor: Guenter Duemmen
  • Patent number: PP7060
    Abstract: A new and distinct geranium plant known by the cultivar name Dueleg is characterized by robust foliage, early flowering, glossiness on the upper sides of the leaves, and red flowers with dark spots on the upper petals.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: November 28, 1989
    Inventor: Guenter Duemmen
  • Patent number: PP7356
    Abstract: A new and distinct Geranium plant known by the cultivar name Duege is characterized by a new color, a great number of umbels, a semi-double flower form, and very early flowering.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: October 16, 1990
    Inventor: Guenter Duemmen
  • Patent number: PP7359
    Abstract: A new and distinct Geranium plant known by the cultivar name Duelyr is characterized by a purple color, many inflorescences and double flowers, slight zonation, compact growth, and very early flowering.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: October 16, 1990
    Inventor: Guenter Duemmen