Rootstock Patents (Class PLT/179)
  • Patent number: PP12771
    Abstract: A new and distinct variety of Pyrus communis named ‘Rhenus 3’ that is compatible as a rootstock with all pear varieties tested and when used as a rootstock for pear varieties, does not cause significant dwarfing. When used as a rootstock, ‘Rhenus 3’ results in high yield efficiency, early yield (precocity), substantially uniform fruit size, high frost hardiness, no suckering, and good soil adaptation.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: July 16, 2002
    Inventor: Helmet B. Jacob
  • Patent number: PP19562
    Abstract: A new and distinct cultivar of Quince plant named ‘Eline’, characterized by its upright plant habit; compatibility as a rootstock with all pear cultivars known to the Inventor; and frost tolerance.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: December 9, 2008
    Assignee: Boomkwekerijen Henri Fleuren B.V.
    Inventor: Henricus Marie Gerardus Carolus Fleuren
  • Patent number: PP11041
    Abstract: A new and distinct variety of Pyrus communis named `Rhenus 1` that is compatible as a rootstock with all pear varieties tested and when used as a rootstock for pear varieties, causes dwarfing to a degree at least as great as quince A rootstock without significantly reducing fruit size, high yield efficiency, early yield (precocity), substantially uniform fruit size, high frost hardiness, no suckering, and good soil adaptation.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: August 24, 1999
    Inventor: Helmut B. Jacob
  • Patent number: PP34813
    Abstract: A new and distinct variety of pear tree rootstock tree that exhibits resistance to Candidatus Phytoplasma pyri, no suckering, strong vigor, and is compatible with all pear varieties.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: December 13, 2022
    Assignee: Consortium Deutscher Baumschulen GmbH
    Inventor: Michael Petruschke
  • Patent number: PP34913
    Abstract: A new and distinct variety of pear tree rootstock tree that exhibits resistance to Candidatus Phytoplasma pyri, no suckering, and is compatible with all pear varieties.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: January 17, 2023
    Assignee: Consortium Deutscher Baumschulen GmbH
    Inventor: Michael Petruschke