David Russell Trawick

Person

Indianapolis, IN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Fault tolerant turbo-generator system
- Patent number 12,095,405
- Issue date Sep 17, 2024
- Rolls-Royce Corporation
- David Loder
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric machine cooling of stator with tube
- Patent number 11,970,973
- Issue date Apr 30, 2024
- Rolls-Royce Corporation
- Stephen Andrew Long
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Voltage controlled aircraft electric propulsion system
- Patent number 11,952,139
- Issue date Apr 9, 2024
- Rolls-Royce Corporation
- Peter Schenk
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Multilayer electronic components with soldered through holes
- Patent number 11,876,364
- Issue date Jan 16, 2024
- Rolls-Royce Corporation
- Shuai Wang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electrically propelled aircraft with partially rated converter
- Patent number 11,851,198
- Issue date Dec 26, 2023
- Rolls-Royce Singapore Pte. Ltd.
- Chandana Jayampathi Gajanayake
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Hybrid aircraft having rectifier with integrated protection
- Patent number 11,840,148
- Issue date Dec 12, 2023
- Rolls-Royce Corporation/Rolls-Royce Singapore Pte. Ltd.
- David Loder
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Multilayer copper bus bars with soldered through hole components
- Patent number 11,832,390
- Issue date Nov 28, 2023
- Rolls-Royce Corporation
- Shuai Wang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electrically insulated shaft coupling
- Patent number 11,808,311
- Issue date Nov 7, 2023
- Rolls-Royce Corporation
- Mathew Hill
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Detection and control of motor drive during an AC side ground fault
- Patent number 11,750,140
- Issue date Sep 5, 2023
- Rolls-Royce Singapore Pte. Ltd.
- Chandana Jayampathi Gajanayake
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Stacked cold plate with flow guiding vanes and method of manufacturing
- Patent number 11,723,173
- Issue date Aug 8, 2023
- Rolls-Royce Corporation
- Shuai Wang
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Aircraft with electrical energy storage in nacelles
- Patent number 11,613,368
- Issue date Mar 28, 2023
- Rolls-Royce Corporation
- John Timothy Alt
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power converter protection circuit
- Patent number 11,456,677
- Issue date Sep 27, 2022
- Rolls-Royce Corporation
- Shaui Wang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric machine with torque control
- Patent number 11,411,514
- Issue date Aug 9, 2022
- Rolls-Royce Corporation
- David Russell Trawick
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electrical connector spacer system
- Patent number 11,394,152
- Issue date Jul 19, 2022
- Rolls-Royce Corporation
- David Russell Trawick
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Recuperative battery cooling system as emergency power source
- Patent number 11,380,945
- Issue date Jul 5, 2022
- Rolls-Royce North American Technologies Inc.
- David R. Trawick
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Electrical controller for engine-driven electric machine
- Patent number 11,319,880
- Issue date May 3, 2022
- Rolls-Royce North American Technologies, Inc.
- David Russell Trawick
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Electrified mechanical control cables
- Patent number 11,155,339
- Issue date Oct 26, 2021
- Rolls-Royce North American Technologies, Inc.
- David Russell Trawick
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Protection coordination technique for power converters
- Patent number 11,121,542
- Issue date Sep 14, 2021
- Rolls-Royce North American Technologies, Inc.
- David Loder
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Dynamic power demand allocation on redundant power buses
- Patent number 11,014,686
- Issue date May 25, 2021
- Rolls-Royce North American Technologies Inc.
- David R. Trawick
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
VARIABLE LENGTH WIRE HARNESS FOR ELECTRONIC DEVICES
- Publication number 20240380168
- Publication date Nov 14, 2024
- Rolls-Royce Corporation
- David R. Trawick
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRICAL ENERGY SYSTEM HAVING ACTIVE SEGMENTS FOR VARIABLE VOLTAG...
- Publication number 20240380295
- Publication date Nov 14, 2024
- Rolls-Royce Corporation
- David Russell Trawick
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
HYBRID PROPULSION SYSTEMS WITH POWER SHARING
- Publication number 20240246690
- Publication date Jul 25, 2024
- Rolls-Royce Corporation
- David Russell Trawick
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
HYBRID PROPULSION SYSTEMS WITH POWER SHARING
- Publication number 20240246684
- Publication date Jul 25, 2024
- Rolls-Royce Corporation
- David Russell Trawick
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
SYSTEMS AND METHODS FOR INTENTIONALLY BREAKING SHAFTS OF COMPROMISE...
- Publication number 20240120811
- Publication date Apr 11, 2024
- Rolls-Royce Corporation
- Mathew Hill
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
AIRCRAFT WITH ENGINE-DRIVEN PERMANENT MAGNET GENERATOR
- Publication number 20240007025
- Publication date Jan 4, 2024
- Rolls-Royce Corporation
- David R. Trawick
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Application
ELECTRICALLY PROPELLED AIRCRAFT WITH PARTIALLY RATED CONVERTER
- Publication number 20230348079
- Publication date Nov 2, 2023
- Rolls-Royce Singapore Pte. Ltd.
- Chandana Jayampathi Gajanayake
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
STACKED COLD PLATE WITH FLOW GUIDING VANES HAVING THROUGH HOLES AND...
- Publication number 20230309260
- Publication date Sep 28, 2023
- Rolls-Royce Corporation
- Shuai Wang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
MULTILAYER ELECTRONIC COMPONENTS WITH SOLDERED THROUGH HOLES
- Publication number 20230283057
- Publication date Sep 7, 2023
- Rolls-Royce Corporation
- Shuai Wang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
MULTILAYER COPPER BUS BARS WITH SOLDERED THROUGH HOLE COMPONENTS
- Publication number 20230284387
- Publication date Sep 7, 2023
- Rolls-Royce Corporation
- Shuai Wang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
HYBRID AIRCRAFT HAVING RECTIFIER WITH INTEGRATED PROTECTION
- Publication number 20230256828
- Publication date Aug 17, 2023
- Rolls-Royce Corporation
- David Loder
- B60 - VEHICLES IN GENERAL
Information Patent Application
COORDINATED FAULT RESPONSE IN RECTIFIERS OF HYBRID AIRCRAFT
- Publication number 20230257127
- Publication date Aug 17, 2023
- Rolls-Royce Corporation
- David Loder
- B60 - VEHICLES IN GENERAL
Information Patent Application
FAULT TOLERANT TURBO-GENERATOR SYSTEM
- Publication number 20230261595
- Publication date Aug 17, 2023
- Rolls-Royce Corporation
- David Loder
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
VOLTAGE CONTROLLED AIRCRAFT ELECTRIC PROPULSION SYSTEM
- Publication number 20220363402
- Publication date Nov 17, 2022
- Rolls-Royce Corporation
- Peter Schenk
- B60 - VEHICLES IN GENERAL
Information Patent Application
ELECTRICALLY INSULATED SHAFT COUPLING
- Publication number 20220299066
- Publication date Sep 22, 2022
- Rolls-Royce Corporation
- Mathew Hill
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
POWER CONVERTER PROTECTION CIRCUIT
- Publication number 20220190591
- Publication date Jun 16, 2022
- Rolls-Royce Corporation
- Shaui Wang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ELECTRIC MACHINE COOLING
- Publication number 20220042458
- Publication date Feb 10, 2022
- Rolls-Royce Corporation
- Stephen Andrew Long
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ELECTRICAL CONNECTOR SPACER SYSTEM
- Publication number 20210281004
- Publication date Sep 9, 2021
- Rolls-Royce Corporation
- David Russell Trawick
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
AIRCRAFT WITH ELECTRICAL ENERGY STORAGE IN NACELLES
- Publication number 20210229821
- Publication date Jul 29, 2021
- Rolls-Royce Corporation
- John Timothy Alt
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Application
ELECTRIC MACHINE WITH TORQUE CONTROL
- Publication number 20210083605
- Publication date Mar 18, 2021
- Rolls-Royce Corporation
- David Russell Trawick
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ELECTRICAL CONTROLLER FOR ENGINE-DRIVEN ELECTRIC MACHINE
- Publication number 20200131995
- Publication date Apr 30, 2020
- Rolls-Royce North American Technologies, Inc.
- David Russell Trawick
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
RECUPERATIVE BATTERY COOLING SYSTEM AS EMERGENCY POWER SOURCE
- Publication number 20200136202
- Publication date Apr 30, 2020
- Rolls-Royce North American Technologies Inc.
- David R. Trawick
- B60 - VEHICLES IN GENERAL
Information Patent Application
PROTECTION COORDINATION TECHNIQUE FOR POWER CONVERTERS
- Publication number 20200136370
- Publication date Apr 30, 2020
- Rolls-Royce North American Technologies, Inc.
- David Loder
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DYNAMIC POWER DEMAND ALLOCATION ON REDUNDANT POWER BUSES
- Publication number 20200122853
- Publication date Apr 23, 2020
- Rolls-Royce North American Technologies Inc.
- David R. Trawick
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Application
ELECTRIFIED MECHANICAL CONTROL CABLES
- Publication number 20200115038
- Publication date Apr 16, 2020
- Rolls-Royce North American Technologies Inc.
- David Russell Trawick
- B64 - AIRCRAFT AVIATION COSMONAUTICS

David Russell Trawick

Person

Patents Grantslast 30 patents

Fault tolerant turbo-generator system

Electric machine cooling of stator with tube

Voltage controlled aircraft electric propulsion system

Multilayer electronic components with soldered through holes

Electrically propelled aircraft with partially rated converter

Hybrid aircraft having rectifier with integrated protection

Multilayer copper bus bars with soldered through hole components

Electrically insulated shaft coupling

Detection and control of motor drive during an AC side ground fault

Stacked cold plate with flow guiding vanes and method of manufacturing

Aircraft with electrical energy storage in nacelles

Power converter protection circuit

Electric machine with torque control

Electrical connector spacer system

Recuperative battery cooling system as emergency power source

Electrical controller for engine-driven electric machine

Electrified mechanical control cables

Protection coordination technique for power converters

Dynamic power demand allocation on redundant power buses

Patents Applicationslast 30 patents

VARIABLE LENGTH WIRE HARNESS FOR ELECTRONIC DEVICES

ELECTRICAL ENERGY SYSTEM HAVING ACTIVE SEGMENTS FOR VARIABLE VOLTAG...

HYBRID PROPULSION SYSTEMS WITH POWER SHARING

HYBRID PROPULSION SYSTEMS WITH POWER SHARING

SYSTEMS AND METHODS FOR INTENTIONALLY BREAKING SHAFTS OF COMPROMISE...

AIRCRAFT WITH ENGINE-DRIVEN PERMANENT MAGNET GENERATOR

ELECTRICALLY PROPELLED AIRCRAFT WITH PARTIALLY RATED CONVERTER

STACKED COLD PLATE WITH FLOW GUIDING VANES HAVING THROUGH HOLES AND...

MULTILAYER ELECTRONIC COMPONENTS WITH SOLDERED THROUGH HOLES

MULTILAYER COPPER BUS BARS WITH SOLDERED THROUGH HOLE COMPONENTS

HYBRID AIRCRAFT HAVING RECTIFIER WITH INTEGRATED PROTECTION

COORDINATED FAULT RESPONSE IN RECTIFIERS OF HYBRID AIRCRAFT

FAULT TOLERANT TURBO-GENERATOR SYSTEM

VOLTAGE CONTROLLED AIRCRAFT ELECTRIC PROPULSION SYSTEM

ELECTRICALLY INSULATED SHAFT COUPLING

POWER CONVERTER PROTECTION CIRCUIT

ELECTRIC MACHINE COOLING

ELECTRICAL CONNECTOR SPACER SYSTEM

AIRCRAFT WITH ELECTRICAL ENERGY STORAGE IN NACELLES

ELECTRIC MACHINE WITH TORQUE CONTROL

ELECTRICAL CONTROLLER FOR ENGINE-DRIVEN ELECTRIC MACHINE

RECUPERATIVE BATTERY COOLING SYSTEM AS EMERGENCY POWER SOURCE

PROTECTION COORDINATION TECHNIQUE FOR POWER CONVERTERS

DYNAMIC POWER DEMAND ALLOCATION ON REDUNDANT POWER BUSES

ELECTRIFIED MECHANICAL CONTROL CABLES