Chandana GAJANAYAKE

Person

Singapore, SG

People

Patents Grantslast 30 patents

Information Patent Grant
Battery pack core for fire and explosion protection for battery module
- Patent number 12,166,222
- Issue date Dec 10, 2024
- Rolls-Royce Corporation
- Michael Adam Zagrodnik
- H01 - BASIC ELECTRIC ELEMENTS
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
Fault detection for a solid state power converter
- Patent number 11,977,131
- Issue date May 7, 2024
- Rolls-Royce North American Technologies, Inc.
- Yu Yang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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
Aircraft hybrid propulsion system including cold plate for a high d...
- Patent number 11,807,381
- Issue date Nov 7, 2023
- Rolls-Royce Corporation
- Krishnamoorthi Sivalingam
- B64 - AIRCRAFT AVIATION COSMONAUTICS
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
Fault detection for a solid state power converter
- Patent number 11,588,322
- Issue date Feb 21, 2023
- Rolls-Royce North American Technologies, Inc.
- Chandana Jayampathi Gajanayake
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control for a target common bus voltage
- Patent number 11,520,361
- Issue date Dec 6, 2022
- Rolls-Royce Singapore Pte. Ltd.
- Souvik Dasgupta
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control for a target common bus voltage
- Patent number 11,518,538
- Issue date Dec 6, 2022
- Rolls-Royce Singapore Pte. Ltd.
- Souvik Dasgupta
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Control for a target common bus voltage
- Patent number 11,520,362
- Issue date Dec 6, 2022
- Rolls-Royce Singapore Pte. Ltd.
- Souvik Dasgupta
- 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
Heat exchanger
- Patent number 11,412,642
- Issue date Aug 9, 2022
- Rolls-Royce PLC
- Chandana J. Gajanayake
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Topology of a solid state power controller with two mid-capacitors
- Patent number 11,374,400
- Issue date Jun 28, 2022
- Rolls-Royce Singapore Pte. Ltd.
- Chandana Jayampathi Gajanayake
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Health monitoring and failure prognosis of power electronics devices
- Patent number 11,248,966
- Issue date Feb 15, 2022
- Rolls-Royce PLC
- Mohamed H. M. Sathik
- G01 - MEASURING TESTING
Information Patent Grant
Current controlling device
- Patent number 10,971,927
- Issue date Apr 6, 2021
- Rolls-Royce PLC
- Chandana J Gajanayake
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Energy storage system for a hybrid power system
- Patent number 10,906,658
- Issue date Feb 2, 2021
- Rolls-Royce North American Technologies Inc.
- Stephen Andrew Long
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Brushless synchronous generator stator winding fault
- Patent number 10,725,107
- Issue date Jul 28, 2020
- Rolls-Royce PLC
- Sivakumar Nadarajan
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Thermal management device
- Patent number 10,716,246
- Issue date Jul 14, 2020
- Rolls-Royce PLC
- Vivek Muthu
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Pre-charging circuit for power converters
- Patent number 10,693,367
- Issue date Jun 23, 2020
- Rolls-Royce North American Technologies, Inc.
- Pradip Chatterjee
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Permanent magnet electrical machine
- Patent number 10,680,474
- Issue date Jun 9, 2020
- Rolls-Royce PLC
- Chandana J. Gajanayake
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method for estimating power system health
- Patent number 10,605,854
- Issue date Mar 31, 2020
- Rollys-Royce PLC
- Mohamed Halick Mohamed Sathik
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Assessment method
- Patent number 10,509,078
- Issue date Dec 17, 2019
- Rolls-Royce PLC
- Sivakumar Nadarajan
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for diagnosing a fault condition in an electri...
- Patent number 10,338,143
- Issue date Jul 2, 2019
- Rolls-Royce PLC
- Chandana J Gajanayake
- G01 - MEASURING TESTING
Information Patent Grant
Open switch fault detection and identification in a two-level volta...
- Patent number 9,964,600
- Issue date May 8, 2018
- Rolls-Royce PLC
- Chandana Jayampathi Gajanayake
- G01 - MEASURING TESTING
Information Patent Grant
Variable speed drive arrangement
- Patent number 9,923,431
- Issue date Mar 20, 2018
- Rolls-Royce PLC
- Stephen J Mountain
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Rectifier diode fault detection in brushless exciters
- Patent number 9,910,083
- Issue date Mar 6, 2018
- Rolls-Royce PLC
- Vaiyapuri Viswanathan
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
ELECTRICAL SYSTEM
- Publication number 20250088116
- Publication date Mar 13, 2025
- Rolls-Royce plc
- Chandana J. GAJANAYAKE
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Aircraft Override For An Energy Storage System
- Publication number 20250074613
- Publication date Mar 6, 2025
- Rolls-Royce Corporation
- Stephen Andrew Long
- B60 - VEHICLES IN GENERAL
Information Patent Application
POWER PROTECTION SYSTEM
- Publication number 20250030234
- Publication date Jan 23, 2025
- ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
- Chandana GAJANAYAKE
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SOLID STATE POWER CONTROLLER, POWER MANAGEMENT SYSTEM AND POWER CON...
- Publication number 20250030414
- Publication date Jan 23, 2025
- ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
- Mohamed Sathik MOHAMED HALICK
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
ELECTRICAL SYSTEM
- Publication number 20240421621
- Publication date Dec 19, 2024
- Rolls-Royce plc
- Chandana J. GAJANAYAKE
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CONVERTER FAULT PROTECTION
- Publication number 20240421701
- Publication date Dec 19, 2024
- Rolls-Royce plc
- Chandana J. GAJANAYAKE
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ELECTRICAL SYSTEM
- Publication number 20240417084
- Publication date Dec 19, 2024
- Rolls-Royce plc
- Chandana J. GAJANAYAKE
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
THERMAL MANAGEMENT SYSTEM
- Publication number 20240237283
- Publication date Jul 11, 2024
- Rolls-Royce plc
- Chandana J. GAJANAYAKE
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
THERMAL MANAGEMENT SYSTEM
- Publication number 20240138108
- Publication date Apr 25, 2024
- Rolls-Royce plc
- Chandana J. GAJANAYAKE
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
CIRCUITRY AND METHODS FOR MONITORING POWER CONVERSION CIRCUITRY
- Publication number 20240069089
- Publication date Feb 29, 2024
- Rolls-Royce plc
- Prasanth SUNDARARAJAN
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
AIRCRAFT THERMAL MANAGEMENT SYSTEM FOR AN ENERGY STORAGE SYSTEM
- Publication number 20240069527
- Publication date Feb 29, 2024
- Rolls-Royce Corporation
- Stephen Andrew LONG
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Electrical Power System Converter Control
- Publication number 20240063729
- Publication date Feb 22, 2024
- Rolls-Royce plc
- Shuai WANG
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ENERGY STORAGE SYSTEM HEATER CONTROL ARCHITECTURE
- Publication number 20240011437
- Publication date Jan 11, 2024
- Rolls-Royce Corporation
- Stephen Andrew LONG
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ENERGY STORAGE SYSTEM HEATER CONTROL METHODS
- Publication number 20240011438
- Publication date Jan 11, 2024
- Rolls-Royce Corporation
- Stephen Andrew LONG
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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
BATTERY PACK CORE FOR FIRE AND EXPLOSION PROTECTION FOR BATTERY MODULE
- Publication number 20220328916
- Publication date Oct 13, 2022
- Rolls-Royce Corporation
- Michael Adam Zagrodnik
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FIRE AND EXPLOSION RESISTANT HOUSING FOR AEROSPACE BATTERY
- Publication number 20220328914
- Publication date Oct 13, 2022
- Rolls-Royce Corporation
- Michael Adam Zagrodnik
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FILL MATERIAL FOR FIRE AND EXPLOSION PROTECTION FOR BATTERY MODULE
- Publication number 20220328913
- Publication date Oct 13, 2022
- Rolls-Royce Corporation
- Michael Adam Zagrodnik
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COLD PLATE FOR HIGH DENSITY POWER CONVERTER
- Publication number 20220297848
- Publication date Sep 22, 2022
- Krishnamoorthi Sivalingam
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Application
CONTROL FOR A TARGET COMMON BUS VOLTAGE
- Publication number 20220258876
- Publication date Aug 18, 2022
- Rolls-Royce Singapore Pte. Ltd.
- Souvik Dasgupta
- B60 - VEHICLES IN GENERAL
Information Patent Application
CONTROL FOR A TARGET COMMON BUS VOLTAGE
- Publication number 20220261022
- Publication date Aug 18, 2022
- Rolls-Royce Singapore Pte. Ltd.
- Souvik Dasgupta
- G05 - CONTROLLING REGULATING
Information Patent Application
CONTROL FOR A TARGET COMMON BUS VOLTAGE
- Publication number 20220261023
- Publication date Aug 18, 2022
- Rolls-Royce Singapore Pte. Ltd.
- Souvik Dasgupta
- G05 - CONTROLLING REGULATING
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

Chandana GAJANAYAKE

Person

Patents Grantslast 30 patents

Battery pack core for fire and explosion protection for battery module

Fault tolerant turbo-generator system

Fault detection for a solid state power converter

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

Aircraft hybrid propulsion system including cold plate for a high d...

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

Stacked cold plate with flow guiding vanes and method of manufacturing

Fault detection for a solid state power converter

Control for a target common bus voltage

Control for a target common bus voltage

Control for a target common bus voltage

Power converter protection circuit

Heat exchanger

Topology of a solid state power controller with two mid-capacitors

Health monitoring and failure prognosis of power electronics devices

Current controlling device

Energy storage system for a hybrid power system

Brushless synchronous generator stator winding fault

Thermal management device

Pre-charging circuit for power converters

Permanent magnet electrical machine

Method for estimating power system health

Assessment method

Method and apparatus for diagnosing a fault condition in an electri...

Open switch fault detection and identification in a two-level volta...

Variable speed drive arrangement

Rectifier diode fault detection in brushless exciters

Patents Applicationslast 30 patents

ELECTRICAL SYSTEM

Aircraft Override For An Energy Storage System

POWER PROTECTION SYSTEM

SOLID STATE POWER CONTROLLER, POWER MANAGEMENT SYSTEM AND POWER CON...

ELECTRICAL SYSTEM

CONVERTER FAULT PROTECTION

ELECTRICAL SYSTEM

THERMAL MANAGEMENT SYSTEM

THERMAL MANAGEMENT SYSTEM

CIRCUITRY AND METHODS FOR MONITORING POWER CONVERSION CIRCUITRY

AIRCRAFT THERMAL MANAGEMENT SYSTEM FOR AN ENERGY STORAGE SYSTEM

Electrical Power System Converter Control

ENERGY STORAGE SYSTEM HEATER CONTROL ARCHITECTURE

ENERGY STORAGE SYSTEM HEATER CONTROL METHODS

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

BATTERY PACK CORE FOR FIRE AND EXPLOSION PROTECTION FOR BATTERY MODULE

FIRE AND EXPLOSION RESISTANT HOUSING FOR AEROSPACE BATTERY

FILL MATERIAL FOR FIRE AND EXPLOSION PROTECTION FOR BATTERY MODULE

COLD PLATE FOR HIGH DENSITY POWER CONVERTER

CONTROL FOR A TARGET COMMON BUS VOLTAGE

CONTROL FOR A TARGET COMMON BUS VOLTAGE

CONTROL FOR A TARGET COMMON BUS VOLTAGE

POWER CONVERTER PROTECTION CIRCUIT