Inventor
Chandana Jayampathi Gajanayake
Inventor
Singapore, SG
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Rprimary
G01RMeasuring electric variables17%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters11%
H01LSemiconductor devices8%
H02HEmergency protective circuit arrangements8%
H02KDynamo-electric machines8%
B64DEquipment for fitting in or to aircraft6%
F02CGas-turbine plants6%
F01DNon-positive displacement machines or engines, e.g. steam turbines3%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants3%
F16HGearing3%
PatentTitleYear
10,971,927Current controlling device202110,906,658Energy storage system for a hybrid power system202110,725,107Brushless synchronous generator stator winding fault202010,716,246Thermal management device202010,693,367Pre-charging circuit for power converters202010,680,474Permanent magnet electrical machine202010,509,078Assessment method201910,338,143Method and apparatus for diagnosing a fault condition in an electric machine20199,964,600Open switch fault detection and identification in a two-level voltage source power converter20189,923,431'Variable speed drive arrangement'20189,910,083'Rectifier diode fault detection in brushless exciters'20189,459,320'Fault detection in brushless exciters'20169,035,689'Thermal controller for semiconductor switching power devices'2015Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2015–2021Patents assigned to ROLLS ROYCE PLC (11)· patent assignee history
2015–2021Based in Singapore, SG· patent location history
2020–2021Patents assigned to ROLLS ROYCE NAM TECH INC (2)· patent assignee history
2020–2021Patents assigned to ROLLS ROYCE SINGAPORE PTE LTD (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ROLLS ROYCE PLC | 11 | 2015–2021 |
| ROLLS ROYCE NAM TECH INC | 2 | 2020–2021 |
| ROLLS ROYCE SINGAPORE PTE LTD | 2 | 2020–2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Singapore, SG | 13 | 2015–2021 |