Inventor
Thomas A. Keim
Inventor
Clifton Park, NY, US
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Kprimary
H02KDynamo-electric machines24%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
Y10TTechnical subjects covered by former us classification12%
G01RMeasuring electric variables8%
B60LPropulsion of electrically-propelled vehicles4%
F01LCyclically operating valves for machines or engines4%
H01FMagnets4%
H02JElectric power networks4%
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 systems4%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters4%
PatentTitleYear
6,912,142'Alternator control circuit and related techniques'20056,755,166'Electromechanical valve drive incorporating a nonlinear mechanical transformer'20045,831,365'Detachable magnet carrier for permanent magnet motor'19985,691,589'Detachable magnet carrier for permanent magnet motor'19974,656,447'Superconducting filter coils for high homogeneity magnetic field'19874,581,580'Intentionally non-orthogonal correction coils for high-homogeneity magnets'19864,528,532'Switch for fine adjustment of persistent current loops in superconductive circuits'19854,481,438'High voltage electrical generator and windings for use therein'19844,404,486'Star connected air gap polyphase armature having limited voltage gradients at phase boundaries'19834,281,264'Mounting of armature conductors in air-gap armatures'19814,214,182'Support structure for armature conductors'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1987Patents assigned to GEN ELECTRIC (6)· patent assignee history
1980–1987Based in Clifton Park, NY, US· patent location history
1984Patents assigned to ELECTRIC POWER RES INST (1)· patent assignee history
1997–1998Patents assigned to KAMAN ELECTROMAGNETICS CORP (2)· patent assignee history
1997Patents assigned to NEWPORT NEWS S & D CO (1)· patent assignee history
1997–2005Based in Boxborough, MA, US· patent location history
2004–2005Patents assigned to MASSACHUSETTS INST TECHNOLOGY (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN ELECTRIC | 6 | 1980–1987 |
| KAMAN ELECTROMAGNETICS CORP | 2 | 1997–1998 |
| MASSACHUSETTS INST TECHNOLOGY | 2 | 2004–2005 |
| ELECTRIC POWER RES INST | 1 | 1984 |
| NEWPORT NEWS S & D CO | 1 | 1997 |
Locations
| Location | Patents | Span |
|---|---|---|
| Clifton Park, New York, US | 7 | 1980–1987 |
| Boxborough, Massachusetts, US | 4 | 1997–2005 |