Patents by Inventor Angel R. Cartagena

Angel R. Cartagena 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).

  • Etching composition and its use in a method of making a photovoltaic cell
    Patent number: 8741167
    Abstract: This invention provides a method of making a photovoltaic cell. The method uses an etching composition comprising one or more onium salts selected from the group consisting of iodonium salts and sulfonium and an organic medium to etch the anti-reflection coating. Also provided is a photovoltaic cell made by this method.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: June 3, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Angel R Cartagena, Feng Gao, Haixin Yang, Lei Zhang
  • ETCHING COMPOSITION AND ITS USE IN A METHOD OF MAKING A PHOTOVOLTAIC CELL
    Publication number: 20140137937
    Abstract: This invention provides a method of making a photovoltaic cell. The method uses an etching composition comprising one or more onium salts selected from the group consisting of iodonium salts and sulfonium and an organic medium to etch the anti-reflection coating. Also provided is a photovoltaic cell made by this method.
    Type: Application
    Filed: January 6, 2014
    Publication date: May 22, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: ANGEL R. CARTAGENA, FENG GAO, HAIXIN YANG, LEI ZHANG
  • ETCHING COMPOSITION AND ITS USE IN A METHOD OF MAKING A PHOTOVOLTAIC CELL
    Publication number: 20110308614
    Abstract: This invention provides an etching composition comprising one or more onium salts selected from the group consisting of iodonium salts and sulfonium and an organic medium. Also provided is a method of making a photovoltaic cell that uses the etching composition to etch the anti-reflection coating and a photovoltaic cell made by this method.
    Type: Application
    Filed: June 16, 2010
    Publication date: December 22, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Angel R Cartagena, Feng Gao, Haixin Yang, Lei Zhang
  • THICK FILM SILVER PASTES CONTAINING IODONIUM AND/OR SULFONIUM SALTS AND THEIR USE IN PHOTOVOLTAIC CELLS
    Publication number: 20110278507
    Abstract: This invention provides a silver thick film paste composition comprising electrically conductive silver powder, one or more onium salts selected from the group consisting of iodonium salts and sulfonium, flux and an organic medium. Also provided are photovoltaic cells that contain an electrode made using these silver thick film paste compositions. Such photovoltaic cells show improved efficiencies.
    Type: Application
    Filed: May 11, 2010
    Publication date: November 17, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Angel R. Cartagena, Haixin Yang
  • RESINATES CONTAINING ACQUEOUS DEVELOPABLE PHOTOIMAGEABLE CARBON NANOTUBE PASTES WITH ENHANCED PERFORMANCE
    Publication number: 20100314988
    Abstract: Disclosed are novel photoimageable compositions for improving the emission of electron field emitters. These compositions are comprised of carbon nanotubes and metal resinate.
    Type: Application
    Filed: December 19, 2008
    Publication date: December 16, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Haixin Yang, Angel R. Cartagena, Terry Roland Suess