Issued Patents All Time
Showing 25 most recent of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12334785 | Architecture for an electric power generator for aviation | Jeremiah Vannest, Julia Xiuling Zhang, Shengyi Liu | 2025-06-17 |
| 12152539 | Direct drive electrically-geared turbofan | Shengyi Liu | 2024-11-26 |
| 12080887 | Iron-based cathode material for sodium-ion battery, preparation method thereof, and corresponding sodium-ion full battery | Jianqing ZHAO, Shiyu Li | 2024-09-03 |
| 11988154 | Direct drive electrically-geared turbofan | Shengyi Liu | 2024-05-21 |
| 11890603 | Nanocomposite materials and methods of manufacture thereof | Tiesheng Wang, Stoyan Smoukov, Qiang Fu | 2024-02-06 |
| 11848634 | Method and system for operating a variable frequency independent speed motor in an extended speed range | Shengyi Liu | 2023-12-19 |
| 11709235 | Data reduction techniques in a LIDAR system | Shawn S. Kuo | 2023-07-25 |
| 11482360 | Stator secondary windings to modify a permanent magnet (PM) field | Shengyi Liu | 2022-10-25 |
| 11431176 | Parallel modular converter architecture | Adam J. Winstanley, Eugene V. Solodovnik, Kamiar J. Karimi, Shengyi Liu, Matthew J. Krolak | 2022-08-30 |
| 11146200 | Variable frequency independent speed motor control based on flux estimate | Shengyi Liu | 2021-10-12 |
| 11110811 | Thin haul hybrid electric propulsion system | Shengyi Liu | 2021-09-07 |
| 11025183 | Independent-speed-variable-frequency-generator-based constant frequency and narrow-band variable frequency power systems and methods | Shengyi Liu | 2021-06-01 |
| 11011928 | Bus transfer for a flight test system | Daniel Coe Outlaw | 2021-05-18 |
| 10840839 | Method and system for independent-speed-variable-frequency-generator-based power system voltage regulation | Shengyi Liu, Eugene V. Solodovnik, Kamiar J. Karimi | 2020-11-17 |
| 10784757 | Synchronous machine with common motor/generator exciter stage | Matthew J. Krolak, Shengyi Liu | 2020-09-22 |
| 10622931 | Negative-slope voltage-frequency for starting a variable frequency independent speed motor and speed control | Shengyi Liu | 2020-04-14 |
| 10578435 | Quality factor compensation in microelectromechanical system (MEMS) gyroscopes | James Lin, Ronald A. Kapusta | 2020-03-03 |
| 10547269 | Variable frequency independent speed motor | Shengyi Liu | 2020-01-28 |
| 10498273 | Externally modulated independent speed variable frequency generator | Eugene V. Solodovnik, Shengyi Liu | 2019-12-03 |
| 10454278 | Independent speed variable frequency based electrified propulsion system architecture | Shengyi Liu | 2019-10-22 |
| 10454393 | Balancing current within a parallel modular converter system | Darren Paschedag, Shengyi Liu | 2019-10-22 |
| 10425026 | Independent speed variable frequency alternating current generator | Shengyi Liu | 2019-09-24 |
| 10415530 | System and method for operating an independent speed variable frequency generator as a starter | Shengyi Liu | 2019-09-17 |
| 10418926 | Counter-field winding in electrical generator | Shengyi Liu | 2019-09-17 |
| 10396554 | Power distribution control within a modular converter system using efficiency calculations | Mun Shin Chik, Shengyi Liu | 2019-08-27 |