SL

Stephen Andrew Long

Rolls-Royce Plc: 16 patents #181 of 2,886Top 7%
RA Rolls-Royce North America: 11 patents #44 of 447Top 10%
RP Rolls-Royce Singapore Pte.: 4 patents #2 of 30Top 7%
RD Rolls-Royce Deutschland: 1 patents #254 of 638Top 40%
RA Rolls-Royce Electrical Norway As: 1 patents #8 of 14Top 60%
SI Southwest Research Institute: 1 patents #454 of 935Top 50%
📍 Indianapolis, IN: #143 of 5,011 inventorsTop 3%
🗺 Indiana: #864 of 33,936 inventorsTop 3%
Overall (All Time): #134,814 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
12404031 Hybrid propulsion systems 2025-09-02
12327916 Low profile, high power microwave antenna, combiner and radial waveguide and additive manufacture of same 2025-06-10
12297771 Energy storage system heater control architecture Michael P. Dougherty, Tomasz Marek LUBECKI, Firman Sasongko, Chandana Jayampathi Gajanayake, Michael Adam Zagrodnik 2025-05-13
12291996 Energy storage system heater control methods Michael P. Dougherty, Tomasz Marek LUBECKI, Firman Sasongko, Chandana Jayampathi Gajanayake, Michael Adam Zagrodnik 2025-05-06
12024308 Propeller driven backup cooling pump system for electric motor converter David Locascio, Michael P. Dougherty, Peter Schenk 2024-07-02
11970973 Electric machine cooling of stator with tube David Russell Trawick, Sean Andrew Morgan, Kolbeinn Kristjansson 2024-04-30
11905026 Hybrid propulsion system cockpit interface David Kopeschka, Michael P. Dougherty, Mark McLaren 2024-02-20
11866180 Hybrid propulsion systems 2024-01-09
11628949 Modular power units for aircraft Dwayne Bevis, Sean Guitar 2023-04-18
11542032 Method and tool for optimizing fuel/electrical energy storage allocation for hybrid-electric aircraft Dwayne Bevis, Sean Guitar, Michael J. Armstrong 2023-01-03
11518538 Control for a target common bus voltage Souvik Dasgupta, Gabriel Ooi, Chandana Jayampathi Gajanayake, Suvajit Mukherjee, Michael P. Dougherty 2022-12-06
11520361 Control for a target common bus voltage Souvik Dasgupta, Gabriel Ooi, Chandana Jayampathi Gajanayake, Suvajit Mukherjee, Michael P. Dougherty 2022-12-06
11520362 Control for a target common bus voltage Souvik Dasgupta, Gabriel Ooi, Chandana Jayampathi Gajanayake, Suvajit Mukherjee, Michael P. Dougherty 2022-12-06
11370554 Hybrid propulsion systems 2022-06-28
11225881 Hybrid propulsion systems 2022-01-18
11159024 Electrical architecture for hybrid propulsion 2021-10-26
10906658 Energy storage system for a hybrid power system Andrew Bollman, Michael Adam Zagrodnik, Chandana Jayampathi Gajanayake 2021-02-02
10907494 Parallel hybrid propulsion system Dwayne Bevis, Graham Burkholder 2021-02-02
10759540 Hybrid propulsion systems 2020-09-01
8908336 Fault tolerant electrical machine John J A Cullen 2014-12-09
8653797 Synchronous electrical machine John J A Cullen, David Reginald Trainer, Angus G. L. Moodie 2014-02-18
8570774 Electrical power system with high-density pulse width modulated (PWM) rectifier Ruxi Wang, Fred Wang, Rolando Burgos, Dushan Boroyevich, Kaushik Rajashekara 2013-10-29
8193750 Electrical machine arrangement David Reginald Trainer, Harsh Agarwal, Stephen M. Husband, Gareth E Moore, David James Powell 2012-06-05
8154260 Generating system Lihua Hu, David Reginald Trainer 2012-04-10
8125196 Electrical power arrangement David Reginald Trainer, Thomas C J Feehally 2012-02-28