Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6349743 | High-pressure hydraulic valve | Hans Staiger, Markus Eschweiler, Jorg Ludwig | 2002-02-26 |
| 4633323 | Picture/sound recorder with hinged flat picture screen | Ottmar Haberkern | 1986-12-30 |
| 4355655 | Hydraulic control apparatus for load independent flow regulation | Siegfried Hertell, Claus Kirchherr, Siegfried Hoffmann | 1982-10-26 |
| 4303091 | Hydraulic control apparatus for load independent flow regulation | Siegfried Hertell, Claus Kirchherr | 1981-12-01 |