Patents by Inventor Marlene A. Spears

Marlene A. Spears 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).

  • Stable electrical contact for silicon carbide devices
    Patent number: 6544674
    Abstract: An electrical contact for a silicon carbide component comprises a material that is in thermodynamic equilibrium with silicon carbide. The electrical contact is typically formed of Ti3SiC2 that is deposited on the silicon carbide component.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: April 8, 2003
    Assignee: Boston MicroSystems, Inc.
    Inventors: Harry L. Tuller, Marlene A. Spears, Richard Micak
  • Stable electrical contact for silicon carbide devices
    Publication number: 20020068488
    Abstract: An electrical contact for a silicon carbide component comprises a material that is in thermodynamic equilibrium with silicon carbide. The electrical contact is typically formed of Ti3SiC2 that is deposited on the silicon carbide component.
    Type: Application
    Filed: August 27, 2001
    Publication date: June 6, 2002
    Applicant: Boston MicroSystems, Inc.
    Inventors: Harry L. Tuller, Marlene A. Spears, Richard Mlcak
  • Method for making an electrochemical cell
    Patent number: 5509189
    Abstract: An electrochemical device including a solid electrolyte and solid electrode composed of materials having different chemical compositions and characterized by different electrical properties but having the same crystalline phase is provided. A method for fabricating an electrochemical device having a solid electrode and solid electrolyte characterized by the same crystalline phase is provided.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: April 23, 1996
    Assignee: Massachusetts Institute of Technology, a MA corp.
    Inventors: Harry L. Tuller, Steve A. Kramer, Marlene A. Spears, Uday B. Pal
  • Solid electrolyte-electrode system for an electrochemical cell
    Patent number: 5403461
    Abstract: An electrochemical device including a solid electrolyte and solid electrode composed of materials having different chemical compositions and characterized by different electrical properties but having the same crystalline phase is provided. A method for fabricating an electrochemical device having a solid electrode and solid electrolyte characterized by the same crystalline phase is also provided.
    Type: Grant
    Filed: March 10, 1993
    Date of Patent: April 4, 1995
    Assignee: Massachusetts Institute of Technology
    Inventors: Harry L. Tuller, Steve A. Kramer, Marlene A. Spears