Inventor
David L. Lippitt
Inventor
Scotia, NY, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Pprimary
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters46%
H02JElectric power networks15%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems15%
H02HEmergency protective circuit arrangements8%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
PatentTitleYear
4,658,192'Programmable deadband current regulator'19874,587,474'Control for bumpless transfer of an AC motor between a solid-state inverter and a supply mains'19864,562,396'Phase-locked loop control of an induction motor drive'19854,496,899'Control for a force commutated current source var generator'19854,475,150'Coordinated load commutated inverter protection system'19844,449,087'Flux feedback firing control for a load commutated inverter'19844,443,747'Transitioning between multiple modes of inverter control in a load commutated inverter motor drive'19844,426,611'Twelve pulse load commutated inverter drive system'19844,090,116'Closed loop digital control system and method for motor control'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1987Patents assigned to GEN ELECTRIC (9)· patent assignee history
1978–1987Based in Scotia, NY, US· patent location history
1984Based in Schenectady, NY, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN ELECTRIC | 9 | 1978–1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Scotia, New York, US | 8 | 1978–1987 |
| Schenectady, New York, US | 1 | 1984 |