Patents by Inventor Carl Richwine

Carl Richwine 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).

  • Apparatus and method of preparing electrochemical cells
    Patent number: 5961671
    Abstract: A method for removing plasticizers such dibutyl phthalate from the anode, cathode, and polymeric matrix components of electrochemical cell precursors using carbon dioxide in the supercritical state is provided. The method forms porous polymeric structures that enhances the mass transport of ions in the cell which results in improved electrochemical performance.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: October 5, 1999
    Assignee: Valence Technology, Inc.
    Inventors: Wade Guindy, Steven D. Cochran, Carl Richwine, George Adamson, Porter H. Mitchell