Patents by Inventor Nils H. Swahn

Nils H. Swahn 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: 4460965
    Abstract: A device for the use of and easily portable by an individual, consisting of a main memory, a microprocessor, a keyboard for the control of the microprocessor, etc., and at least one accounting memory and a display. Operation of the keyboard in a pre-determined fashion will cause the microprocessor to transfer one or more units of information from the main memory to at least one accounting memory. The point in time at which this transfer is made directly or indirectly (for example via internal delay circuits) may be determined by the individual. The number of information units to be transferred is determined by operating the keyboard in a certain, preferably combinatory fashion. Each information unit or group of units which is transferred from the main memory to the accounting memory by operating the keyboard in some other, certain, preferably combinatory fashion will either be given a certain address code or will be allocated to a specific accounting memory.
    Type: Grant
    Filed: February 6, 1981
    Date of Patent: July 17, 1984
    Inventors: Karl B. Trehn, Nils H. Swahn
  • Patent number: 4310890
    Abstract: A parking system for vehicles is disclosed. The system includes a special sign that displays information about a particular parking space, a parking meter into which the displayed information is entered that accumulates parking information in accordance with the entered displayed information, and a terminal that receives and process the parking information accumulated by the parking meter.
    Type: Grant
    Filed: May 22, 1979
    Date of Patent: January 12, 1982
    Inventors: Karl B. Trehn, Nils H. Swahn