Patents by Inventor Johan E. C. Asplund

Johan E. C. Asplund 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).

  • Patent number: 6982650
    Abstract: In a method, system and apparatus of measuring electrical power to consumers (16a–d) in a power distribution network (12), an electromagnetic field is sensed around at least one electrical conductor (12) in a power meter (30a–d) located at a consumer. The current flowing through the conductor is then derived from the sensed electromagnetic field. Instantaneous current values are stored in an electronic memory powered by the electromagnetic field. These instantaneous values or values derived from the instantaneous values are transmitted as digital information on the network to a receiver (20) provided at a distance from the power meter.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: January 3, 2006
    Assignee: Iprobe AB
    Inventor: Johan E. C. Asplund