Patents Assigned to Airwick AG
  • Device ensuring permanent nutrition of pot plants
    Patent number: 4539038
    Abstract: Device for the permanent nutrition of pot plants and containing a granulated slow-release fertilizer comprising at least one fertilizing element selected from nitrogen, phosphorus and potassium, consisting of a flat support, on the upper surface of which adhere the granules, and a water-permeable sheet covering the flat support so as to enclose the granules.
    Type: Grant
    Filed: April 25, 1983
    Date of Patent: September 3, 1985
    Assignee: Airwick AG
    Inventor: Jean-Marie Gombert