Patents by Inventor Emil Gruniger

Emil Gruniger 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).

  • Heating system with a thermal pump
    Patent number: 4059146
    Abstract: A heating system with a thermal pump including an evaporator section consisting of a piping network buried in the ground. The piping network is shielded by a translucent screen arranged above the ground such to prevent a heat loss of the ground and to form a space for heat storage between screen and ground.
    Type: Grant
    Filed: November 26, 1975
    Date of Patent: November 22, 1977
    Assignee: IDC Chemie AG
    Inventor: Emil Gruniger