Patents by Inventor R. Ravikiran

R. 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
    Publication number: 20080242750
    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: Application
    Filed: November 9, 2007
    Publication date: October 2, 2008
    Inventors: R. Ravikiran, Xiaoming Wu, Larry F. Rhodes, Robert A. Shick, Hiroko Nakano, Hirotaka Nonaka, Huabin Wang, Robert John Duff, Saikumar Jayaraman, John-Henry Lipian
  • Polycyclic polymers containing pendant ion conducting moieties
    Publication number: 20050019638
    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: Application
    Filed: June 4, 2004
    Publication date: January 27, 2005
    Inventors: R. Ravikiran, Xiaoming Wu, Larry Rhodes, Robert Shick, Hiroko Nakano, Hirotaka Nonaka, Huabin Wang, Saikumar Jayaraman, Robert Duff, John-Henry Lipian
  • Polymerized cycloolefins using transition metal catalyst and end products thereof
    Publication number: 20040048994
    Abstract: Methods for the addition polymerization of cycloolefins using a cationic Group 10 metal complex and a weakly coordinating anion of the formula:
    Type: Application
    Filed: June 18, 2003
    Publication date: March 11, 2004
    Applicant: Promerus, LLC
    Inventors: Larry Funderburk Rhodes, Andrew Bell, R. Ravikiran, John C. Fondran, Saikumar Jayaraman, Brian Leslie Goodall, Richard A. Mimna, John-Henry Lipian
  • Polymerized cycloolefins using transition metal catalyst and end products thereof
    Publication number: 20030181607
    Abstract: Methods for the addition polymerization of cycloolefins using a cationic Group 10 metal complex and a weakly coordinating anion of the formula:
    Type: Application
    Filed: October 15, 2002
    Publication date: September 25, 2003
    Inventors: Larry Funderburk Rhodes, Andrew Bell, R. Ravikiran, John C. Fondran, Saikumar Jayaraman, Brian Leslie Goodall, Richard A. Mimna, John-Henry Lipian