Inventor
Donald E. Graham
Inventor
Centerville, OH, US
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B60Sprimary
B60SServicing, cleaning, repairing, supporting, lifting, or manoeuvring of vehicles, not otherwise provided for20%
C23CCoating metallic material13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
B60GVehicle suspension arrangements10%
G05DSystems for controlling or regulating non-electric variables10%
Y10TTechnical subjects covered by former us classification10%
H01QAntennas, i.e. radio aerials7%
B05BSpraying apparatus3%
B60HArrangements of heating, cooling, ventilating or other air-treating devices specially adapted for passenger or goods spaces of vehicles3%
F02DControlling combustion engines3%
PatentTitleYear
6,109,532'Locomotive cab heating system'20004,987,351'Load-based control of an AC motor'19914,784,923'Hard metal alloy with surface region enriched with tantalum, niobium, vanadium or combinations thereof and methods of making the same'19884,768,716'Vehicle speed sensitive windshield washer control'19884,733,101'Vehicle power antenna control with inhibit during cranking'19884,730,152'Vehicle power antenna control with drive stress limiting'19884,665,488'Synchronizing wiper control'19874,567,412'Automatic wiper actuator for a vehicle window'19864,492,904'Windshield wiper system with touch control'19854,442,169'Multiple coated cutting tool and method for producing same'19844,436,775'Hard metal body and method of making same'19844,431,954'Motor vehicle windshield wiper apparatus with storm pattern'19844,398,704'Vehicle pneumatic suspension system with dead band adjustment'19834,382,282'Trim control system for reduced drag'19834,355,270'Motor reversing circuit for vehicle windshield wiper'19824,343,865'Hard metal body and method of making same'19824,288,730'Proportional and integral solenoid armature positioning control system'19814,168,840'Motor vehicle level control circuit'19794,138,630'Electric motor reversing control system'19794,105,216'Motor vehicle level control circuit'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1991Patents assigned to GEN MOTORS CORP (14)· patent assignee history
1978–1987Based in Centerville, OH, US· patent location history
1982–1984Patents assigned to GEN ELECTRIC (3)· patent assignee history
1982–1988Based in St. Clair Shores, MI, US· patent location history
1983Patents assigned to SPERRY CORP (1)· patent assignee history
1983Based in Phoenix, AZ, US· patent location history
1988Patents assigned to CARBOLOY INC (1)· patent assignee history
1988–2000Based in Dayton, OH, US· patent location history
2000Patents assigned to DAYTON PHOENIX GROUP INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN MOTORS CORP | 14 | 1978–1991 |
| GEN ELECTRIC | 3 | 1982–1984 |
| CARBOLOY INC | 1 | 1988 |
| DAYTON PHOENIX GROUP INC | 1 | 2000 |
| SPERRY CORP | 1 | 1983 |
Locations
| Location | Patents | Span |
|---|---|---|
| Centerville, OH, US | 10 | 1978–1987 |
| Dayton, OH, US | 5 | 1988–2000 |
| St. Clair Shores, MI, US | 4 | 1982–1988 |
| Phoenix, AZ, US | 1 | 1983 |