Patents by Inventor Stefan Ihrsen

Stefan Ihrsen 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).

  • Publication number: 20090133634
    Abstract: A dairy farm system comprises a plurality of apparatuses (11a-e) for performing actions related to the operation of the dairy farm system, wherein the apparatuses are connected in a network (12), and at least one of the apparatuses (21, 26-28) is movable. The movable apparatus is wirelessly connectable to the network via a short-range radio link (23a-c, 26a-c, 27a-c, 28a-c), preferably a Bluetooth link. Advantageously, the movable apparatus is kept continuously connected in the network (12) via the radio link during operation. In one embodiment the movable apparatus is a feed device (21), wherein feeding instructions are received, and feeding status or error information is sent, by the feed device via the radio link.
    Type: Application
    Filed: December 20, 2006
    Publication date: May 28, 2009
    Inventors: Lars-Arne Axelsson, Thomas Caldenius, Robert Jonsson, Jianning Li, Helmut Obermuller, Stefan Ihrsen, Bjorn Carlson, Bjarne Nebelong