Patents by Inventor Gabriel Kwadwo Ofori-Okai

Gabriel Kwadwo Ofori-Okai 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).

  • Barrier coatings for interconnects; related devices, and methods of forming
    Patent number: 8163434
    Abstract: A method of preparing a solid oxide fuel cell is described herein, as well as the fuel cell itself. The method comprises forming a cathode layer comprising a strontium composition on a ceramic electrolyte layer; and forming a barrier layer between the cathode layer and an overlying interconnect structure comprising chromium, so as to substantially prevent the formation of strontium chromate.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: April 24, 2012
    Assignee: General Electric Company
    Inventors: Anteneh Kebbede, Gabriel Kwadwo Ofori-Okai, Frederic Joseph Klug, Matthew Joseph Alinger, Daniel Joseph Lewis
  • METHODS FOR CLEANING SUBSTRATES
    Publication number: 20110088720
    Abstract: A method for removing sand particles from a substrate is described. The method includes the step of treating the substrate with an acid solution comprising HxAF6, wherein A is selected from the group consisting of Si, Ge, Ti, Zr, Al, and Ga; and wherein HxAF6 is present at a concentration in the range from about 5 weight percent to about 40 weight percent.
    Type: Application
    Filed: October 20, 2009
    Publication date: April 21, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Kripa Kiran Varanasi, Lawrence Bernard Kool, Gabriel Kwadwo Ofori-Okai
  • PROCESS FOR REMOVING METALLIC MATERIAL FROM CASTED SUBSTATES, AND RELATED COMPOSITIONS
    Publication number: 20100147803
    Abstract: A method for removing a metallic material from the surface of a casted substrate includes the step of contacting the metallic material with an aqueous composition which comprises an acid having the formula HxAF6, or precursors to said acid. “A” in the formula is selected from the group consisting of Si, Ge, Ti, Zr, Al, and Ga; and x is 1-6.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 17, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Lawrence Bernard Kool, Michael Francis Xavier Gigliotti, Shyh-Chin Huang, Gabriel Kwadwo Ofori-Okai
  • BARRIER COATINGS FOR INTERCONNECTS; RELATED DEVICES, AND METHODS OF FORMING
    Publication number: 20100055533
    Abstract: A method of preparing a solid oxide fuel cell is described herein, as well as the fuel cell itself. The method comprises forming a cathode layer comprising a strontium composition on a ceramic electrolyte layer; and forming a barrier layer between the cathode layer and an overlying interconnect structure comprising chromium, so as to substantially prevent the formation of strontium chromate.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 4, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Anteneh Kebbede, Gabriel Kwadwo Ofori-Okai, Frederic Joseph Klug, Matthew Joseph Alinger, Daniel Joseph Lewis
  • Method for processing acid treatment solution, solution processed thereby, and method for treating articles therewith
    Patent number: 6793738
    Abstract: A method for preparing a solution for treating an article, a treatment solution made thereby, and a method for treating an article with the solution are presented with, for example, the treatment method comprising providing a quantity of treatment solution, the treatment solution comprising an acid having the formula HxAF6, wherein A is selected from the group consisting of Si, Ge, Ti, Zr, Al, and Ga, and x is in the range from about 1 to about 6; determining a concentration of free acid contaminant in the treatment solution; and removing the concentration of free acid contaminant.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: September 21, 2004
    Assignee: General Electric Company
    Inventors: Lawrence Bernard Kool, James Anthony Ruud, Ralph James Carl, Jr., Gabriel Kwadwo Ofori-Okai
  • Method for processing acid treatment solution, solution processed thereby, and method for treating articles therewith
    Publication number: 20030183247
    Abstract: A method for preparing a solution for treating an article, a treatment solution made thereby, and a method for treating an article with the solution are presented with, for example, the treatment method comprising providing a quantity of treatment solution, the treatment solution comprising an acid having the formula HxAF6, wherein A is selected from the group consisting of Si, Ge, Ti, Zr, Al, and Ga, and x is in the range from about 1 to about 6; determining a concentration of free acid contaminant in the treatment solution; and removing the concentration of free acid contaminant.
    Type: Application
    Filed: March 28, 2002
    Publication date: October 2, 2003
    Inventors: Lawrence Bernard Kool, James Anthony Ruud, Ralph James Carl, Gabriel Kwadwo Ofori-Okai