Inventor
Henry J. Ewald
Inventor
Livonia, MI, US
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B60Qprimary
B60QArrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general13%
B60SServicing, cleaning, repairing, supporting, lifting, or manoeuvring of vehicles, not otherwise provided for13%
H05BElectric heating13%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications13%
E05FDevices for moving wings into open or closed position6%
E05YIndexing scheme associated with subclasses e05d and e05f, relating to construction elements, electric control, power supply, power signal or transmission, user interfaces, mounting or coupling, details, accessories, auxiliary operations not otherwise provided for, application thereof6%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes6%
G07CTime or attendance registers6%
G07FCoin-freed or like apparatus6%
H01HElectric switches6%
Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1996Patents assigned to FORD MOTOR CO (4)· patent assignee history
1987–1996Based in Livonia, MI, US· patent location history
1993–1994Patents assigned to LECTRON PRODUCTS (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FORD MOTOR CO | 4 | 1987–1996 |
| LECTRON PRODUCTS | 2 | 1993–1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Livonia, MI, US | 4 | 1987–1996 |