David Lei Ma

Person

Avon, CT, US

People

Patents Grantslast 30 patents

Information Patent Grant
Hydrogen liquid oxygen combined cycle engine
- Patent number 12,259,134
- Issue date Mar 25, 2025
- RTX Corporation
- Walter A. Ledwith
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Systems and methods for optimal speed protection for power turbine...
- Patent number 11,976,633
- Issue date May 7, 2024
- RTX Corporation
- Chaohong Cai
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Hydrogen steam and inter-cooled turbine engine
- Patent number 11,912,423
- Issue date Feb 27, 2024
- RTX Corporation
- Joseph B. Staubach
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Efficient turbine engine using integrated ammonia fuel processing
- Patent number 11,802,508
- Issue date Oct 31, 2023
- RTX Corporation
- Lance L. Smith
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Adaptive model predictive control for hybrid electric propulsion
- Patent number 11,555,455
- Issue date Jan 17, 2023
- Raytheon Technologies Corporation
- Timothy J. Crowley
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information Patent Grant
Systems and methods for hybrid electric turbine engines
- Patent number 11,519,289
- Issue date Dec 6, 2022
- Raytheon Technologies Corporation
- Gabriel L. Suciu
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Speed limiting for power turbine governing and protection in a turb...
- Patent number 11,346,290
- Issue date May 31, 2022
- Raytheon Technologies Corporation
- Chaohong Cai
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Systems and methods for optimal speed protection for power turbine...
- Patent number 11,092,136
- Issue date Aug 17, 2021
- Raytheon Technologies Corporation
- Chaohong Cai
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...

Patents Applicationslast 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
STEAM INJECTED INTER-TURBINE BURNER ENGINE
- Publication number 20240102416
- Publication date Mar 28, 2024
- Raytheon Technologies Corporation
- David Lei Ma
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
HYDROGEN STEAM AND INTER-COOLED TURBINE ENGINE
- Publication number 20230322396
- Publication date Oct 12, 2023
- RTX Corporation
- Joseph B. Staubach
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
EFFICIENT TURBINE ENGINE USING INTEGRATED AMMONIA FUEL PROCESSING
- Publication number 20230313735
- Publication date Oct 5, 2023
- Raytheon Technologies Corporation
- Lance L. Smith
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
SYSTEMS AND METHODS FOR OPTIMAL SPEED PROTECTION FOR POWER TURBINE...
- Publication number 20210340956
- Publication date Nov 4, 2021
- Raytheon Technologies Corporation
- Chaohong Cai
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information Patent Application
SPEED LIMITING FOR POWER TURBINE GOVERNING AND PROTECTION IN A TURB...
- Publication number 20210262400
- Publication date Aug 26, 2021
- United Technologies Corporation
- Chaohong Cai
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information Patent Application
SYSTEMS AND METHODS FOR HYBRID ELECTRIC TURBINE ENGINES
- Publication number 20210172333
- Publication date Jun 10, 2021
- United Technologies Corporation
- GABRIEL L. SUCIU
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ADAPTIVE MODEL PREDICTIVE CONTROL FOR HYBRID ELECTRIC PROPULSION
- Publication number 20200347787
- Publication date Nov 5, 2020
- United Technologies Corporation
- Timothy J. Crowley
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Application
SYSTEMS AND METHODS FOR OPTIMAL SPEED PROTECTION FOR POWER TURBINE...
- Publication number 20190338754
- Publication date Nov 7, 2019
- United Technologies Corporation
- Chaohong Cai
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...

David Lei Ma

Person

Patents Grantslast 30 patents

Hydrogen liquid oxygen combined cycle engine

Systems and methods for optimal speed protection for power turbine...

Hydrogen steam and inter-cooled turbine engine

Efficient turbine engine using integrated ammonia fuel processing

Adaptive model predictive control for hybrid electric propulsion

Systems and methods for hybrid electric turbine engines

Speed limiting for power turbine governing and protection in a turb...

Systems and methods for optimal speed protection for power turbine...

Patents Applicationslast 30 patents

HYDROGEN LIQUID OXYGEN COMBINED CYCLE ENGINE

STEAM INJECTED INTER-TURBINE BURNER ENGINE

HYDROGEN STEAM AND INTER-COOLED TURBINE ENGINE

EFFICIENT TURBINE ENGINE USING INTEGRATED AMMONIA FUEL PROCESSING

SYSTEMS AND METHODS FOR OPTIMAL SPEED PROTECTION FOR POWER TURBINE...

SPEED LIMITING FOR POWER TURBINE GOVERNING AND PROTECTION IN A TURB...

SYSTEMS AND METHODS FOR HYBRID ELECTRIC TURBINE ENGINES

ADAPTIVE MODEL PREDICTIVE CONTROL FOR HYBRID ELECTRIC PROPULSION

SYSTEMS AND METHODS FOR OPTIMAL SPEED PROTECTION FOR POWER TURBINE...