Inventor
Charles E. Konrad
Inventor
Roanoke, VA, US
Overview
27→
Patents
1976–2001
Patent span
General tagging of new technological developments
Primary field (CPC Y)
Patents· 27 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y02Tprimary
Y02TClimate change mitigation technologies related to transportation19%
B60LPropulsion of electrically-propelled vehicles17%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters14%
G01RMeasuring electric variables10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
H02HEmergency protective circuit arrangements6%
F04DNon-positive-displacement pumps4%
G05BControl or regulating systems in general4%
B60WConjoint control of vehicle sub-units of different type or different function3%
G06FElectric digital data processing3%
PatentTitleYear
6,254,353'Method and apparatus for controlling operation of a submersible pump'20015,945,802'Ground fault detection and protection method for a variable speed ac electric motor'19995,883,489'High speed deep well pump for residential use'19995,486,748'Method and apparatus for improved efficiency in a pulse-width-modulated alternating current motor drive'19965,403,244'Electric vehicle drive train with direct coupling transmission'19955,376,869'Electric vehicle drive train with rollback detection and compensation'19945,369,540'Electric vehicle drive train with contactor protection'19945,287,051'Method and apparatus for improved efficiency in a pulse-width-modulated alternating current motor drive'19945,227,703'Protection system for alternating current, battery powered electric traction motor vehicle'19934,870,564'Distributed input/output system'19894,764,868'Distributed input/output system'19884,593,380'Dual function input/output for a programmable controller'19864,520,299'Turning speed controller for electric vehicles having dual drive motors'19854,500,818'Dual motor proportioning control'19854,468,599'Plug current regulator'19844,454,503'Transistor fault indicator'19844,449,080'Electric vehicle protection scheme'19844,443,744'Method and apparatus for charge enhancement of a commutating capacitor'19844,427,930'Electric vehicle current regulator'19844,423,362'Electric vehicle current regulating system'19834,375,603'Shunt-wound control for on-road vehicle'19834,320,334'Battery state-of-charge indicator'19824,234,840'Battery state-of-charge indicator'19804,021,718'Battery monitoring apparatus'19774,002,972'Electric vehicle control analyzer'19773,995,204'Braking mode control for an electric traction motor'19763,968,414'Bypass contactor control'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–2001Patents assigned to GEN ELECTRIC (26)· patent assignee history
1976–2001Based in Roanoke, VA, US· patent location history
1989Patents assigned to GE FANUC AUTOMATION INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN ELECTRIC | 26 | 1976–2001 |
| GE FANUC AUTOMATION INC | 1 | 1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Roanoke, Virginia, US | 27 | 1976–2001 |