Patents by Inventor Reinhold Holtkamp

Reinhold Holtkamp 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).

  • African violet plant
    Patent number: PP4189
    Abstract: This invention relates to a novel african violet plant which bears relatively large, unfading violet-blue blossoms over a long period of time.
    Type: Grant
    Filed: November 30, 1976
    Date of Patent: January 17, 1978
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4208
    Abstract: An African violet plant characterized by upright and strong flower stems bearing non-dropping, violet blooms above the leaves.
    Type: Grant
    Filed: February 8, 1977
    Date of Patent: February 7, 1978
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4213
    Abstract: An African violet plant having purple-red, star shaped flowers on strong, erect peduncles to form a large, solid flower head above the foliage, with flowering being continuous.
    Type: Grant
    Filed: November 18, 1976
    Date of Patent: February 14, 1978
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4214
    Abstract: A novel African violet characterized by its large, pink blossoms borne on strong stems and over a long period of time.
    Type: Grant
    Filed: March 3, 1977
    Date of Patent: February 14, 1978
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4216
    Abstract: A distinct African Violet plant having strong and erect flower stems, flowers which are medium blue in flower color and relatively large and star-shaped in form, uniform flowering, and generally round, medium green foliage.
    Type: Grant
    Filed: November 30, 1976
    Date of Patent: February 21, 1978
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4239
    Abstract: An African violet which is a mutation of Colorado, disclosed in my pending application Ser. No. 764,216, filed Nov. 30, 1976. The mutation is characterized by its large white flowers having frilled edges, red-violet in certain areas, and by its vigorous growth, upright and strong flower stems and profuse flowering.
    Type: Grant
    Filed: April 12, 1977
    Date of Patent: April 11, 1978
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4266
    Abstract: An African violet plant having purplish-red flower color, frilled petal edges, vigorous and compact growth, upright and strong flower stems, profuse blooming and long blooming period.
    Type: Grant
    Filed: November 30, 1976
    Date of Patent: June 20, 1978
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4267
    Abstract: An African violet cultivar characterized by medium pink flowers carried on strong, upright stems, with 6 to 10 flowers on each stem, vigorous growth, dark green leaves and long blooming period.
    Type: Grant
    Filed: March 3, 1977
    Date of Patent: June 20, 1978
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4268
    Abstract: An African violet cultivar characterized by large pink, non-dropping flowers which have frilled edges, strong upright stems, with up to 10 flowers on each stem, and vigorous and uniform growth.
    Type: Grant
    Filed: March 3, 1977
    Date of Patent: June 20, 1978
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4296
    Abstract: An African violet having strong stems and 10-12 large pink flowers on each stem. The cultivar is a vigorous grower and is saleable with the first flash of flowers in 7-9 weeks, and full flowering 8-10 weeks.
    Type: Grant
    Filed: April 12, 1977
    Date of Patent: September 5, 1978
    Assignee: Gesellschaftsvertrag uber die Erfindergemeinschaft "OPTIMARA"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4302
    Abstract: An African violet plant having relatively large star-shaped flowers having a deep red flower color; shiny foliage; fast and vigorous growth; very strong and upright stems, and long blooming period.
    Type: Grant
    Filed: November 18, 1976
    Date of Patent: September 19, 1978
    Assignee: Gesellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4303
    Abstract: An African violet cultivar having vigorous growth and generally purple flowers and medium green leaves. The cultivar has 10-15 upright and strong flower stems, with each stem carrying up to 10 flowers, thereby providing a very strong and full flowerhead.
    Type: Grant
    Filed: April 12, 1977
    Date of Patent: September 19, 1978
    Assignee: Gesellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4348
    Abstract: An African violet known by the cultivar name Louisiana having light pink, single, non-dropping flowers with frilled edges, the flowers being carried on upright and relatively short stems. The flowers appear just above the rosette of dark green leaves. The cultivar also has a compact habit and excellent growth characteristics.
    Type: Grant
    Filed: February 22, 1978
    Date of Patent: December 19, 1978
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4349
    Abstract: An African violet known by the varietal name Kansas and a mutation of Delaware, characterized by strong upright flower stems each of which carries 4-5 flowers. The flowers are large, star-shaped, non-dropping and pure white in color, with a slight red hue in center. Kansas flowers continuously, is fast growing, and have a compact growth habit.
    Type: Grant
    Filed: February 22, 1978
    Date of Patent: December 19, 1978
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4350
    Abstract: An African violet known by the cultivar name Maine and characterized by large, single star-shaped flowers white in color, with violet-blue centers; strong, upright flower stems each carrying 4-5 flowers, and small, relatively light green foliage having serrated edges, with the flowers appearing just above the foliage crown.
    Type: Grant
    Filed: February 22, 1978
    Date of Patent: December 19, 1978
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4351
    Abstract: An African violet named Montana which is a mutation of Gigi, disclosed in U.S. Plant Pat. No. 3,146. Montana has white flowers with blue tinging in the centers. The flowers are carried on strong, upright flower stems, and the plant is fast growing and has a compact growing habit. Initial flowering is 7-8 weeks after potting. Montana has green leaves with smooth edges, the leaves having a hairy and velvety texture.
    Type: Grant
    Filed: February 22, 1978
    Date of Patent: December 19, 1978
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4352
    Abstract: An African violet named Kentucky having strong and upright stems each carrying up to 10 flowers which are non-dropping blue-violet in color, durable and of typical violet shape. The new cultivar has dark green leaves, and sturdy growth habit.
    Type: Grant
    Filed: February 22, 1978
    Date of Patent: December 19, 1978
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4353
    Abstract: An African violet named Wisconsin, which is a mutation of Cornelia. Wisconsin is characterized by its intensive blue-violet flower color and uniform flowering, with the flowers being long lasting and non-dropping. The plant is vigorous and fast growing, producing up to 11 or more flower stems, each carrying four to six flowers, thereby providing a full bouquet when the plant is in full bloom.
    Type: Grant
    Filed: February 22, 1978
    Date of Patent: December 19, 1978
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4373
    Abstract: An African Violet known by the cultivar name Alabama and particularly characterized by its flower color, which is predominantly white, with blue-purple centers and edges, wavy and frilled flower edges; vigorous growth habit, and by its flower production, with up to 10 individual flowers being carried on each flower stem.
    Type: Grant
    Filed: May 31, 1978
    Date of Patent: February 6, 1979
    Assignee: Gesellschaftsvertrag uber die Erfindergemeinschaft "OPTIMARA"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4374
    Abstract: An African Violet known by the cultivar name Arizona, characterized by dark green leaves and strong upright peduncles each of which carries 10-12 individual flowers; generally red-purple flower color, with a tendency toward lighter streaking in the petals extending generally radially in the petal from the center of the flower, with the flowers being non-dropping, and having a prolific flowering characteristic which provides a full and tight bouquet above the foliage.
    Type: Grant
    Filed: May 31, 1978
    Date of Patent: February 6, 1979
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "OPTIMARA"
    Inventor: Reinhold Holtkamp