Patents by Inventor William J. Gambogi

William J. Gambogi 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).

  • DEVICES DERIVED FROM ELECTRICALLY CONDUCTIVE POLYMERS
    Publication number: 20110006293
    Abstract: Organic electronic devices derived from electrically conductive polymer compositions having a pH greater than 1.8 and a hole transporting material are described.
    Type: Application
    Filed: September 22, 2010
    Publication date: January 13, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Che-Hsiung Hsu, Kim Sunghan, Nora Sabina Radu, William J. Gambogi
  • Electrically Conductive Polymers
    Publication number: 20080121846
    Abstract: Methods and compositions are described for electrically conductive polymer compositions having a pH greater than 1.8 and a hole transporting material.
    Type: Application
    Filed: December 29, 2005
    Publication date: May 29, 2008
    Applicant: E.I. du Pont de Nemours and Company
    Inventors: Che-Hsiung Hsu, Sunghan Kim, Nora Sabrina Radu, William J. Gambogi
  • Dry film process for altering the wavelength of response of holograms
    Patent number: 5182180
    Abstract: The process is disclosed for altering the wavelength response of a volume phase reflection hologram by contacting the hologram with a diffusion element containing a monomer. Monomer in the diffusion element is partially polymerized to effect a desired diffusion pattern.
    Type: Grant
    Filed: August 27, 1991
    Date of Patent: January 26, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: William J. Gambogi, Jr., Robert G. Melega