Patents by Inventor Horst Hellwig

Horst Hellwig 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).

  • Traffic intersection
    Patent number: 4630961
    Abstract: In a road intersection unrestrained by traffic signal controllers the intersection is classified into a central zone and into interchange zones providing for better safety on the road and for continuous flow of traffic. All entrances and exits are placed in the interchange zones. Further, the interchange zones include overpasses for interchanging the position of lanes before they enter the central zone.
    Type: Grant
    Filed: February 29, 1984
    Date of Patent: December 23, 1986
    Inventor: Horst Hellwig