Patents Assigned to Lannen Tehtaat Oyj
  • Cell and cell tray for growing seedlings
    Patent number: 6266921
    Abstract: Cultivation cell for seedlings and a tray formed from such cells, comprising apertures breaking the cell upper rims. Thereby growth disturbancies in roots growing close to the substrate surface are prevented. The tray comprises air channels, and growth of surface roots across the upper apertures from one cell to another is prevented by structural elements giving the tray rigidity.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: July 31, 2001
    Assignee: Lannen Tehtaat Oyj
    Inventor: Altti Keskilohko