Class F04D : NON-POSITIVE-DISPLACEMENT PUMPS
Subclass 7/04: Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts (pumping liquids and elastic fluids at the same time F04D 31/00) of centrifugal type the fluids being viscous or non-homogeneous
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12247587 | Pump apparatus for reducing the size of suspended solids before pumping | Aug 27, 21 | Mar 11, 25 | Weir Minerals Australia Ltd. |
| 12233298 | Multi-purpose pump | Oct 30, 22 | Feb 25, 25 | Not available |
| 12226623 | Rotary blood pump | Sep 13, 23 | Feb 18, 25 | CardiacAssist, Inc. |
| 12212265 | Control device and pump apparatus | Feb 08, 16 | Jan 28, 25 | CLEARWATER CONTROLS LIMITED |
| 12196210 | Centrifugal blood pump with hydrodynamic bearing | Jun 23, 21 | Jan 14, 25 | ABIOMED EUROPE GMBH |
| 12173451 | Arrangement and method for degassing a pump | Nov 28, 19 | Dec 24, 24 | Andritz Oy |
| 12173723 | Drainage pump | May 19, 21 | Dec 24, 24 | Fujikoki Corporation |
| 12173728 | Submersible pump with external slicer | Mar 14, 23 | Dec 24, 24 | Not available |
| 12152585 | Sealing soft water recovery apparatus for vacuum pump in vacuum pressure swing adsorption oxygen generation system | Jul 04, 24 | Nov 26, 24 | SHANGHAI LIFENGAS CO., LTD |
| 12152599 | Composite metal centrifugal slurry pump impeller | Aug 18, 21 | Nov 26, 24 | Weir Slurry Group Inc. |
| 12123429 | Alignment portions on main liner for a pump | May 28, 21 | Oct 22, 24 | Weir Slurry Group Inc. |
| 12117018 | Drive side liner for a centrifugal pump | May 28, 21 | Oct 15, 24 | Weir Slurry Group Inc. |
| 12104621 | Non-clogging pump | Dec 15, 20 | Oct 01, 24 | Tsurumi Manufacturing Co. Ltd. |
| 12098728 | Inducer for a submersible pump for pumping a slurry containing solids and viscous fluids and method of designing same | Jun 29, 20 | Sep 24, 24 | Dajustco IP Holdings Inc. |
| 12097504 | Externally serrated rotary shredder and submersible shredder pump having an externally serrated rotary shredder | Feb 07, 24 | Sep 24, 24 | Not available |
| 12092129 | Pump and hydraulic unit of a pump | Jun 07, 22 | Sep 17, 24 | Xylem Europe GmbH |
| 12066034 | Grooved side liner for centrifugal pump | Oct 29, 21 | Aug 20, 24 | Weir Minerals Australia Ltd. |
| 12055160 | Non-clogging pump | Nov 16, 20 | Aug 06, 24 | Tsurumi Manufacturing Co. Ltd. |
| 12044252 | Wiping element for impeller leading edges of wastewater pumps | Aug 03, 20 | Jul 23, 24 | KSB SE & Co. KGaA |
| 12031554 | Open impeller for submergible pump configured for pumping liquid comprising abrasive matter | Sep 20, 21 | Jul 09, 24 | Xylem Europe GmbH |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0116,274 | HIGH EFFICIENCY DRILLING FLUID SHEARING PUMP USING STAGED TESLA TURBINE | Oct 05, 23 | Apr 10, 25 | Not available |
| 2025/0108,345 | PUMP DEVICE WITH A CENTRIFUGAL PUMP AND A MIXING UNIT | Feb 07, 23 | Apr 03, 25 | Not available |
| 2025/0101,681 | ARRANGEMENT AND METHOD FOR DEGASSING A PUMP | Dec 06, 24 | Mar 27, 25 | Not available |
| 2025/0043,793 | PUMP FOR IMMERSION WITHIN A FLUID RESERVOIR | Oct 22, 24 | Feb 06, 25 | NUHN INDUSTRIES LTD. |
| 2025/0003,422 | Drive Side Liner For A Centrifugal Pump | Sep 13, 24 | Jan 02, 25 | Not available |
| 2024/0410,123 | SNOW THROWER IMPELLER | Jun 17, 24 | Dec 12, 24 | Not available |
| 2024/0410,373 | REVERSING POLARITY OF A PUMP ON FAILURE, AND APPLICATIONS THEREOF | Feb 07, 24 | Dec 12, 24 | Zoeller Pump Company, LLC |
| 2024/0344,526 | INLET COMPONENT FOR A SLURRY PUMP | Apr 09, 24 | Oct 17, 24 | Not available |
| 2024/0337,272 | Grooved Side Liner For Centrifugal Pump | Jun 14, 24 | Oct 10, 24 | Not available |
| 2024/0328,422 | PUMP CASING AND PUMP | Apr 22, 22 | Oct 03, 24 | Not available |
| 2024/0287,998 | Centrifugal Slurry Pump Impeller | Apr 11, 24 | Aug 29, 24 | Not available |
| 2024/0254,999 | Centrifugal Slurry Pump Impeller Shroud With Lip | Jun 24, 22 | Aug 01, 24 | Not available |
| 2024/0255,000 | Centrifugal Pump Impeller With Tapered Shroud | Jun 25, 22 | Aug 01, 24 | Not available |
| 2024/0229,817 | WEAR ELEMENT FOR A SLURRY PUMP | Mar 08, 22 | Jul 11, 24 | Metso Outotec Sweden AB |
| 2024/0191,723 | PUMP FOR CONVEYING WASTEWATER AND IMPELLER FOR SUCH A PUMP | Nov 30, 23 | Jun 13, 24 | Not available |
| 2024/0159,246 | SPLIT VOLUTE FOR SUBMERSIBLE PUMP | Sep 23, 23 | May 16, 24 | INDUSTRIAL FLOW SOLUTIONS OPERATING, LLC |
| 2024/0151,241 | SLURRY PUMP | Mar 08, 22 | May 09, 24 | Metso Outotec Sweden AB |
| 2024/0133,395 | WEAR ELEMENT FOR A SLURRY PUMP | Mar 08, 22 | Apr 25, 24 | Metso Outotec Sweden AB |
| 2024/0110,567 | MEASUREMENT ASSEMBLIES AND METHODS FOR MEASURING NOSE GAP IN PUMPS | Sep 22, 23 | Apr 04, 24 | Not available |
| 2024/0011,497 | PUMP FOR IMMERSION WITHIN A FLUID RESERVOIR | Sep 22, 23 | Jan 11, 24 | NUHN INDUSTRIES LTD. |
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