Patents by Inventor Stephanie R. Curtis

Stephanie R. Curtis 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).

  • Ionically conductive clay additive for use in electrochemical cells
    Patent number: 7563537
    Abstract: The present disclosure relates to alkaline electrochemical cells, such as metal-air cells, which comprise a gelled anode which may or may not include mercury, comprising an ionically conductive clay additive. The ionically conductive clay additive is modified to include halogen atoms to increase the negative charge density of the additive and improve its performance in the electrochemical cell.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: July 21, 2009
    Assignee: Rovcal, Inc.
    Inventors: Paul Pratt, Stephanie R. Curtis, Rodney S. McKenzie
  • Ionically conductive additive for zinc-based anode in alkaline electrochemical cells
    Patent number: 7005213
    Abstract: An anode is provided for an electrochemical cell having an ionically conductive additive, such as Laponite® or any alternative clay suitable to improve the transport of hydroxyl ions into anode during discharge.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: February 28, 2006
    Assignee: Rayovac Corporation
    Inventors: Ernest Ndzebet, Stephanie R. Curtis, Viet H. Vu
  • Conformal separator for an electrochemical cell
    Publication number: 20030044686
    Abstract: An electrochemical cell is presented having an improved separator disposed at the interface of the anode and cathode. In particular, the separator conforms to the contour of the electrode and is thinner than conventional separators made of non-woven fabric. The conformal separator may be formed from combinations of certain polymers and inorganic crosslinking agents.
    Type: Application
    Filed: May 24, 2002
    Publication date: March 6, 2003
    Inventors: William C. Bushong, Stephanie R. Curtis, Gregory J. Davidson, David R. Mihara, Gregory S. Moy, Ernest Ndzebet, Michael J. Root, Viet H. Vu
  • Ionically conductive additive for zinc-based anode in alkaline electrochemical cells
    Publication number: 20020177043
    Abstract: An anode is provided for an electrochemical cell having an ionically conductive additive, such as Laponite® or any alternative clay suitable to improve the transport of hydroxyl ions into anode during discharge.
    Type: Application
    Filed: May 16, 2002
    Publication date: November 28, 2002
    Inventors: Ernest Ndzebet, Stephanie R. Curtis, Viet H. Vu