Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Shengyi Liu — 91 Patents

The Boeing: 90 patents #11 of 15,756Top 1%
Sammamish, WA: #17 of 2,558 inventorsTop 1%
Washington: #341 of 76,902 inventorsTop 1%
Overall (All Time): #17,445 of 4,157,543Top 1%
91 Patents All Time

Issued Patents All Time

Showing 26–50 of 91 patents

Patent #TitleCo-InventorsDate
10934880 Electrical generation from turbine engines 2021-03-02
10840839 Method and system for independent-speed-variable-frequency-generator-based power system voltage regulation Lijun Gao, Eugene V. Solodovnik, Kamiar J. Karimi 2020-11-17
10784757 Synchronous machine with common motor/generator exciter stage Lijun Gao, Matthew J. Krolak 2020-09-22
10665849 Battery cell design for preventing internal short circuits from occurring and propagating John A. Trela, Kamiar J. Karimi 2020-05-26
10651514 Battery cell design for preventing internal short circuits from occurring and propagating using positive temperature coefficient (PTC) materials John A. Trela, Kamiar J. Karimi 2020-05-12
10622931 Negative-slope voltage-frequency for starting a variable frequency independent speed motor and speed control Lijun Gao 2020-04-14
10573458 Superconducting air core inductor systems and methods John R. Hull, Vyacheslav Khozikov, Eugene V. Solodovnik, John Dalton Williams 2020-02-25
10547269 Variable frequency independent speed motor Lijun Gao 2020-01-28
10539629 Programmable alternating current (AC) load having regenerative and dissipative modes Dazhong Gu, Dariusz Czarkowski, Francisco de Leon, Kamiar J. Karimi, Eugene V. Solodovnik 2020-01-21
10498273 Externally modulated independent speed variable frequency generator Lijun Gao, Eugene V. Solodovnik 2019-12-03
10476379 Aircraft universal power converter Kamiar J. Karimi, Duanyang Wang, Francisco de Leon, Qingquan Tang, Dazhong Gu +3 more 2019-11-12
10454278 Independent speed variable frequency based electrified propulsion system architecture Lijun Gao 2019-10-22
10454393 Balancing current within a parallel modular converter system Darren Paschedag, Lijun Gao 2019-10-22
10425056 Reconfigurable electromagnetic interference filter network Yujie Song, Eugene V. Solodovnik, Kamiar J. Karimi 2019-09-24
10425026 Independent speed variable frequency alternating current generator Lijun Gao 2019-09-24
10418926 Counter-field winding in electrical generator Lijun Gao 2019-09-17
10415530 System and method for operating an independent speed variable frequency generator as a starter Lijun Gao 2019-09-17
10396554 Power distribution control within a modular converter system using efficiency calculations Mun Shin Chik, Lijun Gao 2019-08-27
10386393 Arc flash hazard assessment for a 400-Hz system Vyacheslav Khozikov, Shawna Murray 2019-08-20
10305356 Synchronous machine with common motor/generator exciter stage Lijun Gao, Matthew J. Krolak 2019-05-28
10234076 Method and system for regulating cryogenic vapor pressure Lijun Gao 2019-03-19
10236817 Integrated control architecture and method for a bi-directional AC-to-AC converter Matthew J. Krolak, Lijun Gao 2019-03-19
10184990 Programmable alternating current (AC) load having regenerative and dissipative modes Dazhong Gu, Dariusz Czarkowski, Francisco de Leon, Kamiar J. Karimi, Eugene V. Solodovnik 2019-01-22
10177698 Counter-field winding in electrical generator Lijun Gao 2019-01-08
10158303 Methods and apparatus to perform torque balance control of co-shafted motors Mun Shin Chik, Darren Paschedag, Neil Pande 2018-12-18