Patents by Inventor Gerhard Grabe

Gerhard Grabe 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).

  • Thin film solar cell having a concave n-i-p structure
    Patent number: 4956685
    Abstract: A thin film solar cell with an n-i-p structure has a roughened substrate surface, and, to achieve an improved fill factor, the substrate surface of the solar cell is a multiply concave surface and has no sharp points.
    Type: Grant
    Filed: February 13, 1990
    Date of Patent: September 11, 1990
    Assignee: Licentia Patent-Verwaltungs GmbH
    Inventors: Roland Fischer, Gerhard Grabe, Kkard Niemann
  • Method of producing a thin film solar cell having a n-i-p structure
    Patent number: 4931412
    Abstract: A thin film solar cell with an n-i-p structure has roughened substrate surface and to achieve an improved fill factor, the substrate surface of the solar cell is a multiply concave surface and has no sharp points.
    Type: Grant
    Filed: June 21, 1988
    Date of Patent: June 5, 1990
    Assignee: Licentia Patent-Verwaltungs GmbH
    Inventors: Roland Fischer, Gerhard Grabe, Ekkehard Niemann