Inventor
Edward J. Hengen
Inventor
Bettendorf, IA, US
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A01Dprimary
A01DHarvesting53%
A01FProcessing of harvested produce33%
B60PVehicles adapted for load transportation or to transport, to carry, or to comprise special loads or objects7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
PatentTitleYear
4,776,153'Automatic height control for a laterally pivoted harvester header'19884,362,168'Separator for an axial flow rotary combine'19824,282,703'Feeder house for a crop harvester'19814,198,802'Axial flow rotary separator for a combine'19804,156,338'Rock guard for a row crop harvesting machine'19794,139,013'Threshing rotor for a combine'19794,087,953'Combine crop feeding system'19784,075,824'Harvesting machine feed mechanism'19784,060,960'Self-propelled crop harvester'19774,037,745'Combine grain tank unloading mechanism'19773,982,384'Row crop harvesting header'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1988Patents assigned to DEERE & CO (11)· patent assignee history
1976–1982Based in Bettendorf, IA, US· patent location history
1988Based in South Bend, IN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DEERE & CO | 11 | 1976–1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bettendorf, IA, US | 10 | 1976–1982 |
| South Bend, IN, US | 1 | 1988 |