Inventor
Waleed M. Said
Inventor
Rockford, IL, US
Overview
Patents· 19 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 systems19%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters14%
H02HEmergency protective circuit arrangements8%
H02JElectric power networks8%
G01RMeasuring electric variables6%
H01FMagnets6%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications6%
Y02TClimate change mitigation technologies related to transportation6%
B60LPropulsion of electrically-propelled vehicles3%
F01DNon-positive displacement machines or engines, e.g. steam turbines3%
PatentTitleYear
9,840,968'Topologies and methods for turbine engine start inverters'20179,551,744'Detecting early failures in printed wiring boards'20179,236,812'Universal AC to DC converter'20169,197,138'Voltage step-up six-phase autotransformer passive rectification AC-DC converter'20159,128,119'Electrical circuit testing'20158,928,179'No break power transfer for power generating system'20158,873,263'Dual-input 18-pulse autotransformer rectifier unit for an aircraft AC-DC converter'20148,730,686'Dual-input nine-phase autotransformer for electric aircraft AC-DC converter'20148,630,078'Active AC inrush current control'20148,553,381'Gradually reducing resistive clamp'20138,531,822'Cooling and controlling electronics'20138,378,644'Active rectification for a variable-frequency synchronous generator'20138,374,009'Multi-level parallel phase converter'20138,294,409'Control of pole-change induction motors'20127,952,896'Power conversion architecture with zero common mode voltage'20115,708,576'Fault tolerant power converter'19985,317,500'Active no-break power transfer control for a VSCF power generating system'19945,262,960'Expert electrical power simulator'19934,956,842'Diagnostic system for a watchdog timer'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–1998Patents assigned to SUNDSTRAND CORP (4)· patent assignee history
1990–2017Based in Rockford, IL, US· patent location history
2011–2017Patents assigned to HAMILTON SUNDSTRAND CORP (14)· patent assignee history
2012–2014Patents assigned to CHAI HUAZHEN (2)· patent assignee history
2013–2015Patents assigned to SAID WALEED M (7)· patent assignee history
2013–2014Patents assigned to FENG FRANK Z (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HAMILTON SUNDSTRAND CORP | 14 | 2011–2017 |
| SAID WALEED Mself | 7 | 2013–2015 |
| SUNDSTRAND CORP | 4 | 1990–1998 |
| FENG FRANK Z | 3 | 2013–2014 |
| CHAI HUAZHEN | 2 | 2012–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rockford, Illinois, US | 19 | 1990–2017 |