Patents by Inventor Peter Keils

Peter Keils 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).

  • Device for feeding potted plants
    Patent number: 4420904
    Abstract: A device for feeding potted plants, consisting of a plant pot comprising a slot for the introduction of a wick, the said wick being attached to a tongue forming part of an adapter, a device for varying the level of the plant pot arrangement in a re-potting unit and a level indicator.
    Type: Grant
    Filed: March 30, 1983
    Date of Patent: December 20, 1983
    Assignee: International Standard Electric Corporation
    Inventors: Siegfried Joswig, Johannes Liebscher, Peter Keils, Peter Tiwi