Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6357552 | Submersible pump assembly for downhole use | — | 2002-03-19 |
| 5318416 | Casing of an eccentric worm pump designed to burst at preselected pressure | Gunther Hantschk, Johann Kreidl | 1994-06-07 |