Patents by Inventor Ravi Ravikiran

Ravi Ravikiran 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).

  • Polycyclic polymers containing pendant ion conducting moieties
    Patent number: 7312292
    Abstract: A polymer comprising polycyclic repeating units having recurring ion conducting groups and optional crosslinkable groups is disclosed. The present invention provides the capability of tailoring polymers to impart unique properties to membranes fabricated from the polymers. Membranes comprising the polymers and methods for preparing the membranes and their use in ion conducting membranes, particularly in fuel cells, are also provided.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: December 25, 2007
    Assignee: Promerus LLC
    Inventors: Ravi Ravikiran, Xiaoming Wu, Larry F. Rhodes, Robert A. Shick, Hiroko Nakano, Hirotaka Nonaka, Huabin Wang, Saikumar Jayaraman, Robert John Duff, John-Henry Lipian