Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4733690 | Hydraulic valve | — | 1988-03-29 |
| 4711155 | Hydraulic control device | — | 1987-12-08 |
| 4667863 | Transport roller arrangement for tape or sheet material of various widths | Gerhard Oberhoffner | 1987-05-26 |
| 4617962 | Hydraulic device | — | 1986-10-21 |
| 4594056 | Hydraulic pump unit | — | 1986-06-10 |
| 4590958 | Two-position switching valve having hydraulic self-holding properties | — | 1986-05-27 |
| 4557294 | Control valve with piston compensated by discharge pressure | — | 1985-12-10 |
| 4532960 | Control valve device | — | 1985-08-06 |
| 4503882 | Flow valve | — | 1985-03-12 |
| 4495961 | Flow divider | — | 1985-01-29 |
| 4453453 | Hydraulic control device | — | 1984-06-12 |
| 4406305 | Control valve | — | 1983-09-27 |
| 4327988 | Apparatus for treating photographic materials | Remi Vanhorebeek, Erwin Geyken, Peter Mayer, Helmut Schausberger | 1982-05-04 |
| 4323087 | Control valve | — | 1982-04-06 |
| 4301837 | Control valve | — | 1981-11-24 |
| 4187023 | Apparatus for wet treatment of running webs of photographic material | Helmut Schausberger | 1980-02-05 |