Inventor
James H. Bigelow
Inventor
Milwaukee, WI, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Hprimary
H01HElectric switches30%
H01FMagnets20%
G06FElectric digital data processing10%
H02HEmergency protective circuit arrangements10%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
Y10TTechnical subjects covered by former us classification10%
PatentTitleYear
6,489,972'Dynamic internal page registration and retrieval system'20024,790,353'Electromagnetic hydraulic valve operator'19884,597,025'Minimum size, integral, A.C. overload current sensing, remote power controller'19864,521,757'High speed electromagnetic mechanical switch'19854,486,728'Shared flux reciprocal electromagnetic actuator'19844,132,933'Electromechanical chopper for speed control of battery powered devices'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979Patents assigned to CUTLER HAMMER INC (1)· patent assignee history
1979–1988Based in Milwaukee, WI, US· patent location history
1984–1988Patents assigned to EATON CORP (4)· patent assignee history
2002Patents assigned to HEWLETT PACKARD CO (1)· patent assignee history
2002Based in Boise, ID, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EATON CORP | 4 | 1984–1988 |
| CUTLER HAMMER INC | 1 | 1979 |
| HEWLETT PACKARD CO | 1 | 2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Milwaukee, WI, US | 5 | 1979–1988 |
| Boise, ID, US | 1 | 2002 |