Patents by Inventor Helge Idar Karlsen

Helge Idar Karlsen 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).

  • Helical coil, Magnetic core antenna
    Patent number: 7034767
    Abstract: A device by an antenna (1) where the coil conductor (2) of the antenna is wound around a ferrite rod/tube (4), and where one conductor (12) of a connecting cable (10) is electrically coupled to one end portion (2a) of the coil conductor (2) of the antenna (1), and the other conductor (14) of the connecting cable (10) is electrically coupled to a connection point (2b), the connection point (2b) being located on the coil conductor (2), between the two end portions (2a) and (2c) of the coil conductor.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: April 25, 2006
    Inventor: Helge Idar Karlsen