Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856551 | Double seat valve with two valve disks | — | 1989-08-15 |
| 4552167 | Method of and device for cleaning hollow spaces in double seat valves | — | 1985-11-12 |
| 4461318 | Double seat valve | — | 1984-07-24 |
| 4368753 | Double-seat valve unit leakage control | Gunter Smusch | 1983-01-18 |