Patents by Inventor Russell H. Higgins

Russell H. Higgins 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).

  • Hybrid Electric Hydrogen Fuel Cell Engine
    Publication number: 20240067348
    Abstract: A hybrid engine including features to meet aircraft thrust, passenger airflow, and fuel cell requirements. The engine includes a combustor burning the same fuel as the fuel cell. The engine has electric motors to utilize the power output of the fuel cell. The engine shafts have sprags to allow motors to drive the compressors and over run the turbines. The engine has variable flowpath geometry to bypass the combustor.
    Type: Application
    Filed: June 16, 2023
    Publication date: February 29, 2024
    Applicant: The Boeing Company
    Inventors: Steve G. MACKIN, Eric B. GILBERT, Russell H. HIGGINS
  • Hybrid electric hydrogen fuel cell engine
    Patent number: 11724815
    Abstract: A hybrid engine including features to meet aircraft thrust, passenger airflow, and fuel cell requirements. The engine includes a combustor burning the same fuel as the fuel cell. The engine has electric motors to utilize the power output of the fuel cell. The engine shafts have sprags to allow motors to drive the compressors and over run the turbines. The engine has variable flowpath geometry to bypass the combustor.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: August 15, 2023
    Assignee: THE BOEING COMPANY
    Inventors: Steve G. Mackin, Eric B. Gilbert, Russell H. Higgins
  • HYBRID ELECTRIC HYDROGEN FUEL CELL ENGINE
    Publication number: 20220297844
    Abstract: A hybrid engine including features to meet aircraft thrust, passenger airflow, and fuel cell requirements. The engine includes a combustor burning the same fuel as the fuel cell. The engine has electric motors to utilize the power output of the fuel cell. The engine shafts have sprags to allow motors to drive the compressors and over run the turbines. The engine has variable flowpath geometry to bypass the combustor.
    Type: Application
    Filed: January 13, 2022
    Publication date: September 22, 2022
    Applicant: The Boeing Company
    Inventors: Steve G. Mackin, Eric B. Gilbert, Russell H. Higgins