Patents by Inventor Andreas Gruttner

Andreas Gruttner 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).

  • Crystal and germanium modification and process for its preparation
    Patent number: 4419151
    Abstract: A new crystalline modification of germanium is described, as well as a method of manufacturing it. This new crystalline germanium modification has an orthorhombic structure and graphite-like properties.
    Type: Grant
    Filed: March 3, 1982
    Date of Patent: December 6, 1983
    Assignee: Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V.
    Inventors: Andreas Gruttner, Reinhard Nesper, Hans-Georg von Schnering