Patents by Inventor John Yupend Gui

John Yupend Gui 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).

  • Tandem photovoltaic cell stacks
    Publication number: 20040211458
    Abstract: A photovoltaic (“PV”) device comprises a plurality of PV cell modules arranged in tandem. Each of the plurality of the tandem PV cell modules comprises at least a PV cell that comprises a pair of electrodes, at least one of which is substantially transparent to the light received by the PV device; an electron donor material, which is a photoactivatable material; and an electron acceptor material. The electron donor material of each of the plurality of the tandem PV cell modules is capable of absorbing a different portion of the spectrum of light received by the PV device.
    Type: Application
    Filed: April 28, 2003
    Publication date: October 28, 2004
    Applicant: General Electric Company
    Inventors: John Yupend Gui, Robert Louis Steigerwald, Donald Earl Castleberry