Patents by Inventor Karl H. Moehrmann

Karl H. Moehrmann 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: 4683489
    Abstract: A common housing for two semi-conductor bodies is provided, comprising a front and back section for two spatially separate semi-conductor bodies attached in the housing interior but preferably connected in electrically conductive fashion to one another, whereby the housing surface preferably composed entirely of metal is cooled during operation by a flowable coolant, preferably cooling air. The front, first semi-conductor body is attached in the front section thereof and the back, second semi-conductor body is attached in the back section thereof, the maximum operating temperature of the back semi-conductor body being higher than the maximum operating temperature of the front semi-conductor body, at least at times.
    Type: Grant
    Filed: August 5, 1985
    Date of Patent: July 28, 1987
    Assignee: Siemens Aktiengesellschaft
    Inventors: Michael Langenwalter, Karl H. Moehrmann, Herbert Prussas, Lothar Spaeter