Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11313366 | Device for conveying a medium | Marco Bredemeier, Joerg Lewerenz | 2022-04-26 |
| 11143180 | Method for operating a multi-phase pump and apparatus therefor | Gerhard Rohlfing | 2021-10-12 |
| 10590930 | System for conveying a medium | Joerg Lewerenz, Marco Bredemeier | 2020-03-17 |
| 9689385 | Method for operating a multi-phase pump and apparatus therefor | Gerhard Rohlfing | 2017-06-27 |
| 9494016 | Collecting tank, system comprising collecting tank and multi-phase pumps, and method for separating and dividing up a multi-phase mixture | Axel Jaeschke, Gerhard Rohlfing, Marco Bredemeier geb Drewniok, Mark Reichwage | 2016-11-15 |
| 7862315 | Screw displacement pump | Gerhard Rohlfing, Axel Jaeschke | 2011-01-04 |
| 7810572 | Method for delivering a multi phase mixture and pump installation | Gerhard Rohlfing, Dietrich Mueller-Link | 2010-10-12 |
| 6129533 | Sealing system for rotating component of a pump | Gerhard Rohlfing, Vejen Hristov | 2000-10-10 |
| 5472319 | Eccentric screw pump with liquid bypass controlled by a flexible diaphragm | Gerhard Rohlfing | 1995-12-05 |