Inventor
Johannes J. de Baan
Inventor
Ennepetal, DE
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Fprimary
F16FSprings60%
B60GVehicle suspension arrangements30%
F16JPistons10%
PatentTitleYear
4,756,393'Apparatus for varying the damping characteristics of a shock absorber'19884,673,067'Adjustable shock absorber, especially for motor vehicles'19874,660,686'Adjustable shock absorber, especially for motor vehicles'19874,494,632'Piston guide and seal for dual-tube hydropneumatic shock absorber'19854,428,566'Two-tube hydropneumatic shock absorber'19844,290,511'Load-carrying strut construction'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981Patents assigned to BILSTEIN AUGUST FA (1)· patent assignee history
1981–1988Based in Ennepetal, DE· patent location history
1984–1988Patents assigned to BILSTEIN AUGUST GMBH CO KG (5)· patent assignee history
1988Patents assigned to IKU HOLDING MONTFOORT BV (1)· patent assignee history
1988Patents assigned to KOSTAL LEOPOLD GMBH & CO KG (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BILSTEIN AUGUST GMBH CO KG | 5 | 1984–1988 |
| BILSTEIN AUGUST FA | 1 | 1981 |
| IKU HOLDING MONTFOORT BV | 1 | 1988 |
| KOSTAL LEOPOLD GMBH & CO KG | 1 | 1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ennepetal, DE | 6 | 1981–1988 |