Patents by Inventor Krishna Vemulapalli

Krishna Vemulapalli 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).

  • Formation of rare earth carbonates using supercritical carbon dioxide
    Patent number: 5045289
    Abstract: The invention relates to a process for the rapid, high yield conversion of select rare earth oxides or hydroxides, to their corresponding carbonates by contact with supercritical carbon dioxide.
    Type: Grant
    Filed: October 4, 1989
    Date of Patent: September 3, 1991
    Assignee: Research Corporation Technologies, Inc.
    Inventors: Quintus Fernando, Naohisa Yanagihara, James T. Dyke, Krishna Vemulapalli