Patents by Inventor Prema Ranganathan

Prema Ranganathan 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).

  • Batteries, conductive compositions, and conductive films containing organic liquid electrolytes and plasticizers
    Patent number: 6015638
    Abstract: Novel liquid electrolyte plasticizers having enhanced ambient temperature conductivity are provided. These plasticizers have the following general structures ##STR1## in which R.sup.a, R.sup.b, R.sup.c, R.sup.e, R.sup.f, R.sup.i, .alpha., .beta., .gamma., l, p and q are as defined herein. Also provided are conductive compositions containing these novel plasticizers, particularly film compositions, and batteries formulated with such compositions.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: January 18, 2000
    Assignee: SRI International
    Inventors: Susanna C. Ventura, Subhash C. Narang, Georgina Hum, Peikang Liu, Prema Ranganathan, Luying Sun
  • Batteries, conductive compositions, and conductive films containing organic liquid electrolytes and plasticizers
    Patent number: 5731104
    Abstract: Novel batteries formulated with compositions comprising liquid electrolyte plasticizers having enhanced ambient temperature conductivity are provided. These plasticizers have the following general structures ##STR1## in which R.sup.a, R.sup.b, R.sup.c, X, Y, Z, .alpha., .beta., .gamma., and l are as defined herein. Novel compositions and films comprising these plasticizers are also provided.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: March 24, 1998
    Assignee: SRI International
    Inventors: Susanna C. Ventura, Subhash C. Narang, Georgina Hum, Peikang Liu, Prema Ranganathan, Luying Sun