Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4770469 | Process for controlling the movement of a universally swivellable cutting arm of a partial cut cutting machine as well as apparatus for performing this process | Eduard Schellenberg, Herwig Wrulich, Reinhard Neuper, Alfred Zitz | 1988-09-13 |
| 4552263 | Drive arrangement for the loading arms of a loading ramp for heading machines or longwall shearing machines | Arnulf Kissich, Franz Schoffmann, Alfred Zitz | 1985-11-12 |