Patents by Inventor Helmut Habisohn

Helmut Habisohn 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).

  • Method and apparatus for the plastifying of synthetic resins
    Patent number: 5422049
    Abstract: A method of thermoplastifying a synthetic resin which is displaced by a worm in a worm housing. High-frequency energy is applied to the plastic in one or more regions along the path of the plastic in which there is no or little frictional heat generated by the interaction of the screw with the housing.
    Type: Grant
    Filed: November 8, 1993
    Date of Patent: June 6, 1995
    Assignee: Friedrich Theysohn GmbH
    Inventors: Ernst Kruger, Helmut Habisohn