Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6450023 | Method and apparatus for air testing pumps | Graeme R. Addie | 2002-09-17 |
| 6431831 | Pump impeller with enhanced vane inlet wear | Graeme R. Addie | 2002-08-13 |
| 6428268 | Pump with auxiliary impeller vane inlet device | Graeme R. Addie | 2002-08-06 |
| 6146095 | Spiral housing pump | Stephan Bross | 2000-11-14 |
| 6053698 | High capacity slurry pump | Graeme R. Addie, Robert J. Visintainer | 2000-04-25 |
| 5984629 | Turbo-machine with reduced abrasive wear | Sonke Brodersen | 1999-11-16 |
| 5551837 | Apparatus for regulating the transport flow of a liquid that is circulated by a centrifugal pump in a closed pipe system | — | 1996-09-03 |
| 5478200 | Centrifugal pump impeller | Sonke Brodersen, Wolfgang Metzinger, Paul A. Krieger | 1995-12-26 |
| 5257910 | Centrifugal pump impeller with a low specific speed of rotation | Alexander Nicklas, Salvatore Scianna | 1993-11-02 |
| 4752187 | Radial impeller for fluid flow machines | Alexander Nicklas | 1988-06-21 |
| 4564334 | Guide wheel for multistage centrifugal pumps | Alexander Nicklas, Karl H. Becker | 1986-01-14 |
| 4491026 | Liquid flow meter | Rolf Brautigam, Lothar Haas, Jurgen Wesemeyer, Heinz-Dieter Hellmann, Reinhard Fassel | 1985-01-01 |
| 4406583 | Centrifugal pump with double volute casing | Karl H. Becker, Peter Milla, Heinz-Dieter Hellmann | 1983-09-27 |
| 4383800 | Centrifugal pump with open double volute casing | Karl H. Becker, Peter Milla, Heinz-Dieter Hellmann | 1983-05-17 |
| 4239453 | Means for reducing cavitation-induced erosion of centrifugal pumps | Peter Buschsieper, Heinz-Bernd Matthias | 1980-12-16 |
| 4208169 | Impeller for centrifugal pumps | Karl H. Becker, Hans-Dieter Knopfel, Alexander Nicklas, Engin Diler | 1980-06-17 |