Sulzer Pumpen AG
50Patents
23Active
50Granted
45Portfolio score
Filing activity: Apr 5, 1995 → May 31, 2013 · 17 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6592340B1 | Control system for a vacuum pump used for removing liquid and a method of controlling said pump | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6043580A | Rotodynamic machine for the forwarding of a fluid | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US6103128A | Method and apparatus for mixing gas with liquid | Performing Operations; Transporting | 20 | Expired |
| US6065345A | Method for monitoring the condition of a mechanical seal | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| USD549250S1 | Bearing unit for a pump | General | 15 | Expired |
| USD641380S1 | Pump casing | General | 14 | Expired |
| USD641381S1 | Pump casing | General | 14 | Expired |
| US5613831A | Apparatus for thrust compensation on shaft of rotary pump | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| USD641379S1 | Pump casing | General | 12 | Expired |
| USD549254S1 | Bearing unit for a pump | General | 12 | Expired |
| US5841020A | Apparatus and method for mixing, measuring and forwarding a multi-phase gas mixture | Physics | 11 | Expired |
| US7326029B2 | Centrifugal pump and an impeller thereof | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| USD699763S1 | Pump housing | General | 9 | Active |
| US6551054B1 | Method and apparatus for pumping a material and a rotor for use in connection therewith | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| USD549251S1 | Bearing housing for a pump | General | 7 | Expired |
| USD690751S1 | Submersible mixer | General | 6 | Active |
| US7338252B2 | Pump for the transporting of fluids and of mixtures of fluids | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| USD549253S1 | Bearing housing for a pump | General | 6 | Expired |
| US6494675B2 | Flow machine for a fluid with a radial sealing gap between stator parts and a rotor | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7435277B2 | Gas separation apparatus, a front wall and a separation rotor thereof | Performing Operations; Transporting | 6 | Active |
| USD549252S1 | Bearing housing for a pump | General | 6 | Expired |
| US8444370B2 | Impeller for pumps | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US5545008A | Method and apparatus for conveying a fluid | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7306427B2 | Sealing arrangement for the attachment of a side plate of a centrifugal pump and an attachment screw used therewith | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| USD697101S1 | Submersible mixer | General | 4 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.