Patents by Inventor Andreas G. Kay

Andreas G. Kay 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).

  • Method for the manufacture of a photo-electrochemical cell and a cell made by this method
    Patent number: 5525440
    Abstract: Method for the manufacture of a photoelectrochemical cell and a cell made by this method. A disadvantage of such cells (1) is the fact that their efficiency is not sufficient for economic use. It is therefore the aim of the invention to avoid this disadvantage. The method according to the invention makes it possible to produce a photoelectrochemical cell (1) comprising a porous electrode (4), the effective surface of which is by a factor 700 greater than that of electrodes of comparable size.
    Type: Grant
    Filed: November 2, 1993
    Date of Patent: June 11, 1996
    Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)
    Inventors: Andreas G. Kay, Michael Graetzel, Brian O'Regan