Patents by Inventor Maria Josefina Cayetano

Maria Josefina Cayetano 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).

  • Structures for gas diffusion materials and methods for their fabrication
    Patent number: 7923172
    Abstract: An improved structure for gas diffusion electrodes and gas diffusion layers whereby fine gradients of porosity and hydrophobicity promote efficient gas transport, water removal and overall enhanced performance of Membrane Electrode Assemblies constructed with these components.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: April 12, 2011
    Assignee: BASF Fuel Cell GmbH
    Inventors: Emory S. De Castro, Yu-Min Tsou, Maria Josefina Cayetano, Jeffrey G. Morse, Michael Schneider, Hua Deng