Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
SP

Sunil Patel

SUSundstrand: 10 patents #35 of 697Top 6%
Hamilton Sundstrand: 4 patents #525 of 2,079Top 30%
Rockford, IL: #72 of 1,291 inventorsTop 6%
Illinois: #5,606 of 84,256 inventorsTop 7%
Overall (All Time): #311,469 of 4,157,543Top 8%
15 Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
11923800 Saturable reactors in generator control units Dhaval Patel, Adrian E. Vandergrift 2024-03-05
11711036 Electric power generation system (EPGS) controller excitation system architecture for variable frequency generators Dhaval Patel, Adrian E. Vandergrift 2023-07-25
10000296 Electrical control system Mark J. Seger, Wes Ralph, Lon R. Hoegberg, Robert A. Bayles 2018-06-19
9568520 Frequency detection circuits Frank J. Ludicky 2017-02-14
5559686 Stepped waveform inverter control Chai-Nam Ng, P. John Dhyanchand, Vietson M. Nguyen, Michael Teagardin 1996-09-24
5301098 Feedforward inverter phase control P. John Dhyanchand, Vietson M. Nguyen, Chai-Nam Ng 1994-04-05
5282125 Power generation system with soft-start circuit P. John Dhyanchand, Chai-Nam Ng, Vietson M. Nguyen 1994-01-25
5225973 Regulation circuit for a stepped-waveform inverter Chai-Nam Ng, Vietson M. Nguyen, P. John Dhyanchand 1993-07-06
5041958 Stepped-waveform inverter with four subinverters P. John Dhyanchand, Chai-Nam Ng, Vietson M. Nguyen 1991-08-20
5041957 Stepped-waveform inverter with six subinverters P. John Dhyanchand, Chai-Nan Ng, Vietson M. Nguyen 1991-08-20
5040105 Stepped-waveform inverter with eight subinverters P. John Dhyanchand, Chai-Nam Ng, Vietson M. Nguyen 1991-08-13
5031086 Hybrid power system P. John Dhyanchand, Chai-Nam Ng, Vietson M. Nguyen 1991-07-09
5027265 Regulator for stepped-waveform inverter P. John Dhyanchand, Chai-Nam Ng, Vietson M. Nguyen 1991-06-25
5012177 Power conversion system using a switched reluctance motor/generator P. John Dhyanchand, Chai-Nam Ng, Vietson M. Nguyen 1991-04-30
5008797 Power converter utilizing line replaceable units Robert Ligon, P. John Dhyanchand 1991-04-16