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: PP4414
    Abstract: An african violet named Ohio having strong and upright flower stems which support 7-12 red-purple flowers on each stem, with the flowers having 5-15 petals. The flowers have a semi-double appearance when several petals appear above the main petals. The plant is compact and fast growing, and has dark green, velvety leaves.
    Type: Grant
    Filed: February 22, 1978
    Date of Patent: May 15, 1979
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4415
    Abstract: An african violet known by the cultivar name North Carolina and having sturdy, upright flower stems, with 10-12 single red-purple flowers on each stem; non-dropping flowers, and vigorous and compact growth habit.
    Type: Grant
    Filed: February 22, 1978
    Date of Patent: May 15, 1979
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4416
    Abstract: An african violet referred to by the cultivar name Michigan having dark green foliage and generally pink flowers which are non-dropping and have excellent color retention. The flowers are carried on short peduncles on straight and upright stems. The plant has a vigorous, compact and fast growing habit, with the first flash of flowers appearing 8-10 weeks after potting.
    Type: Grant
    Filed: February 22, 1978
    Date of Patent: May 15, 1979
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4433
    Abstract: An African violet named Minnesota having large star-shaped, non-dropping red-purple flowers, strong upright flower stems, with 5-7 flowers on each stem and 10-12 stems on each plant, dark green leaves, and vigorous growth habit.
    Type: Grant
    Filed: February 22, 1978
    Date of Patent: July 10, 1979
    Assignee: Gesellschaftsvertrag uber die Erfindergemeinschaft "OPTIMARA"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4497
    Abstract: An African violet plant known by the cultivar name Missouri and particularly characterized by the combined features of vigorous and compact growth habit; intensive red-violet flowers with frilled edges; strong and upright flower stems; long blooming period, and an abundant flower display at first flash.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: January 29, 1980
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "OPTIMARA"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4498
    Abstract: An African violet known by the cultivar name Oregon and characterized by the combined features of large, non-dropping pink flowers with frilled edges, with a few flowers tending to semi-double; strong upright flower stems, and up to nine flowers per stem with the first flash of flowers, which occurs approximately eight weeks after potting.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: January 29, 1980
    Assignee: Gesellschaftsvertrag uber die Erfindergemeinschaft "OPTIMARA"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4500
    Abstract: An African violet known by the cultivar name Iowa and particularly characterized by the combined features of single, violet-shaped flowers having an intensive blue-violet color; strong and upright flower stems rising from the center of the plant so as to carry the bouquet centrally and well above the foliage; and by its vigorous growth and compact habit.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: February 5, 1980
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "OPTIMARA"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4521
    Abstract: An African violet plant known by the cultivar name San Francisco having girl type leaves, star-shaped lilac colored flowers carried on strong and upright stems, vigorous growth habit, compact bouquet and habit, and by its non-dropping, long lasting flowers.
    Type: Grant
    Filed: February 27, 1979
    Date of Patent: April 15, 1980
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "OPTIMARA"
    Inventor: Reinhold Holtkamp
  • African Violet plant
    Patent number: PP4532
    Abstract: An African Violet known by the cultivar name Boston having strong upright stems carrying intensive pink flowers having frilled edges; compact and vigorous growth habit, and leaves which are cupped to form a flat funnel, with the leaves having serrated edges and light-green centers.
    Type: Grant
    Filed: January 8, 1979
    Date of Patent: May 6, 1980
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African Violet plant
    Patent number: PP4533
    Abstract: An African Violet referred to by the cultivar name Nashville having compact and vigorous growth habits; red-purple, frilled, non-dropping flowers; strong and upright stems; relatively quick saleability due to its vigorous growth habit, and by its generally funnel-shaped leaves having light-green centers.
    Type: Grant
    Filed: January 8, 1979
    Date of Patent: May 6, 1980
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4546
    Abstract: An African violet known by the cultivar name Hawaii and characterized by the combined characteristics of large, star-shaped, blue flowers which have white, wavy edges, with additional small petals occasionally occurring at the flower center; strong upright flower stems, and by its medium size leaves which have serrated edges.
    Type: Grant
    Filed: February 27, 1979
    Date of Patent: June 17, 1980
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4547
    Abstract: An African violet known by the cultivar name Alberta, having a vigorous growth habit; 12 or more strong flower stems each of which carries 12 or more violet-shaped flowers which are generally white with purple centers and edges, with the flowers normally containing five petals, with an occasional small petal appearing at the center attached to the receptacle; uniform bouquet and by its long blooming period.
    Type: Grant
    Filed: February 27, 1979
    Date of Patent: June 17, 1980
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4548
    Abstract: An African violet known by the cultivar name Connecticut having vigorous, compact growth habit; relatively large, violet colored flowers which are carried on strong erect flower stems with strong, short peduncles, and by the appearance of 7-9 flower stems with the first flash of flowers.
    Type: Grant
    Filed: February 27, 1979
    Date of Patent: June 17, 1980
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4549
    Abstract: An African violet known by the cultivar name Ontario and characterized by the combined features of white, violet-shaped flowers carried on strong, upright stems; very rich flower production, with 15-20 stems each carrying up to 15 flowers; early and continuous flowering, and by its large and shiny leaves.
    Type: Grant
    Filed: February 27, 1979
    Date of Patent: June 17, 1980
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "OPTIMARA"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4550
    Abstract: An African violet known by the varietal name Manitoba and characterized by its light blue, violet-shaped single flowers, having violet blue centers; dark green shiny leaves; vigorous growth habit; with 7 to 9 flower stems producing 7 or more single flowers when the plant is in full bloom, and by its early and continuous blooming.
    Type: Grant
    Filed: February 27, 1979
    Date of Patent: June 17, 1980
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4551
    Abstract: An African violet known by the cultivar name North Dakota having up to ten flower stems, each carrying up to 10 or more single flowers generally white in color with blue-violet edges and centers, and vigorous growth habit, with the plant being in full flower after 9-10 weeks from potting.
    Type: Grant
    Filed: February 27, 1979
    Date of Patent: June 17, 1980
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "Optimara"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4557
    Abstract: An African violet known by the variety name Alaska having the combined features of large star-shaped white flowers having blue-violet centers and tinged edges, with the flowers being supported on strong upright stems; prominent golden yellow anther cells at center of flower; medium green, large leaves, and vigorous growth habit.
    Type: Grant
    Filed: February 27, 1979
    Date of Patent: June 24, 1980
    Assignee: Gessellschaftsvertrag uber die Erfindergemeinschaft "OPTIMARA"
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4773
    Abstract: An African violet named Massachusetts, particularly characterized by its profuse flowering, with up to 15 stems carrying up to 12 or more individual flowers; lilac flower color, with a deeper purple color near the center; long lasting, non-dropping flowers, and by its compact, vigorous growth habit.
    Type: Grant
    Filed: July 25, 1980
    Date of Patent: October 6, 1981
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4774
    Abstract: An African violet known by the cultivar name Utah, characterized by its deep blue flower color, vigorous, compact and uniform growth habit, strong upright stems each carrying up to 15 non-dropping flowers, and by its heavy golden yellow pollen sacs which provide a pleasant contrast with the deep blue flowers.
    Type: Grant
    Filed: July 25, 1980
    Date of Patent: October 6, 1981
    Inventor: Reinhold Holtkamp
  • African violet plant
    Patent number: PP4776
    Abstract: An African violet named Texas, particularly characterized by its vigorous and very uniform growth habit, dark green, shiny leaves, upright stems each of which carries 7-12 flowers, and by its large blue frilled flowers which are long lasting and non-dropping.
    Type: Grant
    Filed: July 25, 1980
    Date of Patent: October 13, 1981
    Inventor: Reinhold Holtkamp