Inventor
Robert J. Griffith
Inventor
Erie, PA, US
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B60Lprimary
B60LPropulsion of electrically-propelled vehicles25%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters25%
Y02TClimate change mitigation technologies related to transportation25%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations13%
C07DHeterocyclic compounds13%
PatentTitleYear
5,607,935'2-heterocyclicethylamine derivatives and their use as pharmaceuticals'19974,418,301'Circuit for averaging a plurality of separate motor speed signals'19834,256,983'Voltage-to-frequency converter having a constant frequency mode of operation'19814,090,119'Torque analog of a series wound DC traction motor'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1983Patents assigned to GEN ELECTRIC (3)· patent assignee history
1978–1983Based in Erie, PA, US· patent location history
1997Patents assigned to FISONS CORP (1)· patent assignee history
1997Based in Brighton, NY, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN ELECTRIC | 3 | 1978–1983 |
| FISONS CORP | 1 | 1997 |
Locations
| Location | Patents | Span |
|---|---|---|
| Erie, Pennsylvania, US | 3 | 1978–1983 |
| Brighton, New York, US | 1 | 1997 |