Inventor
Pierre Thollot
Inventor
Rockford, IL, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Mprimary
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 systems46%
H03KPulse technique15%
F02NStarting of combustion engines8%
H02HEmergency protective circuit arrangements8%
H02JElectric power networks8%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
PatentTitleYear
5,777,459'Induction electrical power generating system with variable numbers of poles and excitation frequency'19985,068,590'Brushless generator having AC excitation in generating and starting modes'19914,695,933'Multiphase DC-DC series-resonant converter'19874,670,828'Bi-directional switch for neutral point clamped PWM inverter'19874,651,267'Proportional base drive circuit for transistorized bridge inverter'19874,635,177'Control for a neutral point clamped PWM inverter'19874,625,271'Soft-start circuit for a power converter'19864,616,142'Method of operating parallel-connected semiconductor switch elements'19864,542,440'Switch current sensing with snubber current suppression in a push-pull converter'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985–1998Patents assigned to SUNDSTRAND CORP (9)· patent assignee history
1985–1998Based in Rockford, IL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SUNDSTRAND CORP | 9 | 1985–1998 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rockford, Illinois, US | 9 | 1985–1998 |