Patents by Inventor Hans R. Gruniger

Hans R. Gruniger 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: 4773973
    Abstract: A novel process for the electrolytic deposition of silicon from a melt containing covalent silicon compounds, in particular silicon tetrahalides, and furthermore aluminium halides, alkali metal halides and halides of transition metals is carried out at relatively low temperatures of 100.degree. to 350.degree. C. in an inert atmosphere. The silicon is deposited cathodically or anodically onto electrically conductive material.The silicon coatings are homogeneous and adhere firmly to the substrate. The coated materials can be used for the production of photoconductive or photovoltaic devices.
    Type: Grant
    Filed: March 8, 1988
    Date of Patent: September 27, 1988
    Assignee: Ciba-Geigy AG
    Inventors: Hans R. Gruniger, Rudolf Kern, Paul Rys
  • Patent number: 4759830
    Abstract: A novel process for the electrolytic deposition of silicon from a melt containing covalent silicon compounds, in particular silicon tetrahalides, and furthermore aluminum halides, alkali metal halides and halides of transition metals is carried out at relatively low temperatures of 100.degree. to 350.degree. C. in an inert temperature. The silicon is deposited cathodically or anodically onto electrically conductive material.The silicon coatings are homogeneous and adhere firmly to the substrate. The coated materials can be used for the production of photoconductive or photovoltaic devices.
    Type: Grant
    Filed: August 18, 1987
    Date of Patent: July 26, 1988
    Assignee: Ciba-Geigy AG
    Inventors: Hans R. Gruniger, Rudolf Kern, Paul Rys