Patents by Inventor Blake A. Graham

Blake A. Graham 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).

  • Zinc manganese-iron spinel with an alkali metal stabilizer as an oxygen storage material resistant to rich/lean aging
    Patent number: 11559792
    Abstract: An oxygen storage material (OSM) includes a zinc manganese iron oxide (ZMF) and an alkali metal base on the ZMF surface. The ZMF has a spinel structure. The alkali metal containing ZMF can be formed to have a weight percent of alkali metal up to about two percent. The alkali metal carbonate is retained on the ZMF surface upon heating to a temperature greater than 1,000° C. and stabilizes the ZMF to the cycling of an oxygen rich and oxygen lean atmosphere. The OSM additionally catalyzes the oxidation of hydrocarbons and CO and catalyzes the reduction of NOx for use in catalytic converters.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: January 24, 2023
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Torin C. Peck, Benjamin A. Grayson, Blake A. Graham, Charles Alexander Roberts, Krishna Gunugunuri
  • ZINC MANGANESE-IRON SPINEL WITH AN ALKALI METAL STABILIZER AS AN OXYGEN STORAGE MATERIAL RESISTANT TO RICH/LEAN AGING
    Publication number: 20220297097
    Abstract: An oxygen storage material (OSM) includes a zinc manganese iron oxide (ZMF) and an alkali metal base on the ZMF surface. The ZMF has a spinel structure. The alkali metal containing ZMF can be formed to have a weight percent of alkali metal up to about two percent. The alkali metal carbonate is retained on the ZMF surface upon heating to a temperature greater than 1,000° C. and stabilizes the ZMF to the cycling of an oxygen rich and oxygen lean atmosphere. The OSM additionally catalyzes the oxidation of hydrocarbons and CO and catalyzes the reduction of NOx for use in catalytic converters.
    Type: Application
    Filed: March 19, 2021
    Publication date: September 22, 2022
    Inventors: Torin C. Peck, Benjamin A. Grayson, Blake A. Graham, Charles Alexander Roberts, Krishna Gunugunuri
  • Zinc doped manganese-iron spinel catalyst material and method of making and using the same
    Patent number: 11311861
    Abstract: Catalyst for oxygen storage capacity applications that include a zinc doped manganese-iron spinel mixed oxide material. The zinc doped manganese-iron spinel mixed oxide material may be synthesized by a co-precipitation method using a precipitation agent such as sodium carbonate and exhibits a high oxygen storage capacity.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: April 26, 2022
    Assignee: TOYOTA MOTOR ENGINEERING AND MANUFACTURING NORTH AMERICA, INC.
    Inventors: Torin C. Peck, Benjamin A. Grayson, Blake A. Graham, Charles A. Roberts, Krishna R. Gunugunuri
  • ZINC DOPED MANGANESE-IRON SPINEL CATALYST MATERIAL AND METHOD OF MAKING AND USING THE SAME
    Publication number: 20210316281
    Abstract: Catalyst for oxygen storage capacity applications that include a zinc doped manganese-iron spinel mixed oxide material. The zinc doped manganese-iron spinel mixed oxide material may be synthesized by a co-precipitation method using a precipitation agent such as sodium carbonate and exhibits a high oxygen storage capacity.
    Type: Application
    Filed: April 13, 2020
    Publication date: October 14, 2021
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Torin C. Peck, Benjamin A. Grayson, Blake A. Graham, Charles A. Roberts, Krishna R. Gunugunuri