Patents by Inventor Cornelia Diessel

Cornelia Diessel 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).

  • Recycling of thermosetting polyurethane soft foam
    Patent number: 5185380
    Abstract: The invention relates to a process for recycling thermosetting polyurethane soft foams in which they are comminuted in a mill, irrespective of their initial shape, density and structure, and are then pressed under the influence of pressure and elevated temperatures to high-strength sheets of various structures.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: February 9, 1993
    Assignee: Stankiewicz GmbH
    Inventors: Cornelia Diessel, Carsten Kliwer, Gerhard Burak, Ehrenfried Blumel, Christoph Kittel