Patents by Inventor Gerda Friedrich

Gerda Friedrich 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).

  • Solar cell
    Patent number: 4694117
    Abstract: The invention relates to a solar cell provided with an anti-reflection layer on the surface intended for incident light. The invention consists in the front interconnector being applied directly to the anti-reflection layer of insulating material, so that the charge carriers have to tunnel through this anti-reflection layer.
    Type: Grant
    Filed: May 1, 1986
    Date of Patent: September 15, 1987
    Assignee: Telefunken Electronic GmbH
    Inventors: Gerda Friedrich, Klaus-Dieter Rasch, Wilfried Schmidt