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Walter A. Ledwith
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North Palm Beach, FL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Hydrogen-oxygen fueled powerplant with water and heat recovery
Patent number
12,215,608
Issue date
Feb 4, 2025
RTX Corporation
Neil J. Terwilliger
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Liquid hydrogen-liquid oxygen fueled powerplant
Patent number
11,905,914
Issue date
Feb 20, 2024
RTX Corporation
Walter A. Ledwith
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Hydrogen-oxygen fueled powerplant with water and heat recovery
Patent number
11,828,200
Issue date
Nov 28, 2023
Raytheon Technologies Corporation
Neil J. Terwilliger
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Hydrogen-oxygen fueled powerplant with water and heat recovery
Patent number
11,725,544
Issue date
Aug 15, 2023
Raytheon Technologies Corporation
Neil J. Terwilliger
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Gas turbine engine and an airflow control system
Patent number
11,236,639
Issue date
Feb 1, 2022
Raytheon Technologies Corporation
Christopher J. Hanlon
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Engine bypass valve
Patent number
10,161,316
Issue date
Dec 25, 2018
United Technologies Corporation
Daniel B. Kupratis
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Gas turbine engine with a multi-spool driven fan
Patent number
10,119,477
Issue date
Nov 6, 2018
United Technologies Corporation
Christopher J. Hanlon
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Three-stream gas turbine engine architecture
Patent number
9,951,721
Issue date
Apr 24, 2018
United Technologies Corporation
Daniel Bernard Kupratis
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Constant thrust retention turbine temperature limit system
Patent number
5,142,860
Issue date
Sep 1, 1992
United Technologies Corporation
Mark A. Strange
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Method for making a drum rotor
Patent number
4,483,054
Issue date
Nov 20, 1984
United Technologies Corporation
Walter A. Ledwith
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
HYDROGEN LIQUID OXYGEN COMBINED CYCLE ENGINE
Publication number
20250003591
Publication date
Jan 2, 2025
Raytheon Technologies Corporation
Walter A. Ledwith
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
HYDROGEN-OXYGEN GAS TURBINE ENGINE
Publication number
20240026816
Publication date
Jan 25, 2024
Raytheon Technologies Corporation
Neil J. Terwilliger
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
HYDROGEN-OXYGEN FUELED POWERPLANT WITH WATER AND HEAT RECOVERY
Publication number
20230392524
Publication date
Dec 7, 2023
RTX Corporation
Neil J. Terwilliger
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
LIQUID HYDROGEN-LIQUID OXYGEN FUELED POWERPLANT
Publication number
20230258148
Publication date
Aug 17, 2023
Walter A. Ledwith
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
HYDROGEN-OXYGEN FUELED POWERPLANT WITH WATER AND HEAT RECOVERY
Publication number
20230258126
Publication date
Aug 17, 2023
Neil J. Terwilliger
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
HYDROGEN-OXYGEN FUELED POWERPLANT WITH WATER AND HEAT RECOVERY
Publication number
20230258106
Publication date
Aug 17, 2023
Neil J. Terwilliger
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
TURBINE CLEARANCE CONTROL SYSTEM AND METHOD FOR IMPROVED VARIABLE...
Publication number
20190048796
Publication date
Feb 14, 2019
United Technologies Corporation
Walter A. Ledwith
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
TURBINE CLEARANCE CONTROL SYSTEM AND METHOD FOR IMPROVED VARIABLE...
Publication number
20170328231
Publication date
Nov 16, 2017
United Technologies Corporation
Walter A. Ledwith
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
THREE-STREAM GAS TURBINE ENGINE ARCHITECTURE
Publication number
20160312740
Publication date
Oct 27, 2016
United Technologies Corporation
Daniel Bernard Kupratis
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
ENGINE BYPASS VALVE
Publication number
20160298550
Publication date
Oct 13, 2016
United Technologies Corporation
Daniel B. Kupratis
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
GAS TURBINE ENGINE WITH A MULTI-SPOOL DRIVEN FAN
Publication number
20160208692
Publication date
Jul 21, 2016
United Technologies Corporation
Christopher J. Hanlon
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS