Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6811156 | Seal for hydraulically sealing a piston rod | Andreas Nevoigt | 2004-11-02 |
| 6668452 | Piston-rod scraping ring accommodated in a groove in a dashpot cap, and method of inserting such a ring in such a groove | Andreas Nevoigt | 2003-12-30 |
| 6089142 | Piston head for a hydraulic shock absorber | Dr.-Ing. Rolf Angermann | 2000-07-18 |
| 5579876 | Stopper for a hydraulic dashpot | Rolf Angermann | 1996-12-03 |
| 5533598 | Hydraulic shock absorber for motor vehicles | Rolf Angermann | 1996-07-09 |
| 4428566 | Two-tube hydropneumatic shock absorber | Johannes J. de Baan | 1984-01-31 |
| 4290511 | Load-carrying strut construction | Johannes J. de Baan | 1981-09-22 |