Patents by Inventor Juergen Dreier

Juergen Dreier 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).

  • Solar collector
    Patent number: 4213449
    Abstract: A solar collector having a blow-molded frame and an integral absorber plate. The frame is larger in thickness than is the thickness of the absorber plate portion. The absorber plate portion of the blow-molded part has a channel system molded therein for conveying a liquid therethrough. The blow-molded part has rigidifying sections therein to enhance the stability of the solar collector.
    Type: Grant
    Filed: March 22, 1978
    Date of Patent: July 22, 1980
    Assignee: Roth Werke GmbH
    Inventors: Manfred Roth, Juergen Dreier