Patents by Inventor Andrew J. Stella

Andrew J. Stella 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).

  • Method for producing metal nitrides and metal carbides
    Patent number: 10974962
    Abstract: A method for producing a metal nitride and/or a metal carbide, a metal nitride and/or metal carbide optionally produced according to the method, and the use of the metal nitride and/or carbide in catalysis optionally catalytic hydroprocessing. Optionally, the method comprises: i) contacting at least one metal oxide comprising at least one first metal M1 with a cyanometallate comprising at least one second metal M2 to form a reaction mixture; and, ii) subjecting the reaction mixture to a temperature of at least 300° C. for a reaction period. Optionally, the metal nitride and/or metal carbide is a metal nitride comprising tungsten nitride.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: April 13, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Partha Nandi, Quddus A. Nizami, Christine E. Kliewer, Andrew J. Stella, Jihad M. Dakka, Himanshu Gupta
  • Method for Producing Metal Nitrides and Metal Carbides
    Publication number: 20190284051
    Abstract: A method for producing a metal nitride and/or a metal carbide, a metal nitride and/or metal carbide optionally produced according to the method, and the use of the metal nitride and/or carbide in catalysis optionally catalytic hydroprocessing. Optionally, the method comprises: i) contacting at least one metal oxide comprising at least one first metal M1 with a cyanometallate comprising at least one second metal M2 to form a reaction mixture; and, ii) subjecting the reaction mixture to a temperature of at least 300° C. for a reaction period. Optionally, the metal nitride and/or metal carbide is a metal nitride comprising tungsten nitride.
    Type: Application
    Filed: September 12, 2017
    Publication date: September 19, 2019
    Inventors: Partha Nandi, Guddus A. Nizami, Christine E. Klievver, Andrew J. Stella, Jihad M. Dakka, Himanshu Gupta