Patents by Inventor Robert M. Estanek

Robert M. Estanek 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).

  • Substituted lambda manganese dioxides in an alkaline electrochemical cell
    Patent number: 10804536
    Abstract: Substituted ?-MnO2 compounds are provided, where a portion of the Mn is replaced by at least one alternative element. Electrochemical cells incorporating substituted ?-MnO2 into the cathode, as well as methods of preparing the substituted ?-MnO2, are also provided.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: October 13, 2020
    Assignee: Energizer Brands, LLC
    Inventors: George Louis Schimek, Robert M. Estanek, Steven J. Limmer, Guanghong Zheng
  • SUBSTITUTED LAMBDA MANGANESE DIOXIDES IN AN ALKALINE ELECTROCHEMICAL CELL
    Publication number: 20180233743
    Abstract: Substituted ?-MnO2 compounds are provided, where a portion of the Mn is replaced by at least one alternative element. Electrochemical cells incorporating substituted ?-MnO2 into the cathode, as well as methods of preparing the substituted ?-MnO2, are also provided.
    Type: Application
    Filed: February 13, 2018
    Publication date: August 16, 2018
    Inventors: George Louis Schimek, Robert M. Estanek, Steven J. Limmer, Guanghong Zheng
  • Cathode materials for primary batteries
    Patent number: 7081235
    Abstract: The cathode of a primary alkaline battery is composed of electrode grade manganese dioxide containing Zr.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: July 25, 2006
    Assignee: Eveready Battery Company, Inc.
    Inventors: Frank H. Feddrix, Robert M. Estanek, Scott W. Donne
  • Cathode materials for primary batteries
    Publication number: 20030215385
    Abstract: The cathode of a primary alkaline battery is composed of electrode grade manganese dioxide containing Zr.
    Type: Application
    Filed: April 22, 2003
    Publication date: November 20, 2003
    Inventors: Frank H. Feddrix, Robert M. Estanek, Scott W. Donne