Class F04D : NON-POSITIVE-DISPLACEMENT PUMPS
Subclass 1/12: Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps (adapted for pumping specific fluids F04D 7/00; priming or boosting F04D 9/00; pumping liquids and elastic fluids at the same time F04D 31/00) Pumps with scoops or like paring members protruding in the fluid circulating in a bowl
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12129856 | Rotor having a plurality of spiral pathways to pass liquid or gas therethrough to increase power thereof | Apr 07, 22 | Oct 29, 24 | Not available |
| 11578732 | Controllable pitot device and method | Aug 03, 20 | Feb 14, 23 | ETTEM ENGINEERING S.A. LTD. |
| 11542948 | Scavenging centrifugal baffle pump | Apr 29, 19 | Jan 03, 23 | GM Global Technology Operations LLC |
| 11118586 | Bailer-type long-shaft pump and application thereof | Mar 13, 18 | Sep 14, 21 | JIANGSU TAIHU PLANNING AND DESIGN INSTITUTE OF WATER RESOURCES CO., LTD. |
| 11009027 | Self-pumping vacuum rotor system | Jan 25, 17 | May 18, 21 | ENRICHMENT TECHNOLOGY COMPANY LTD. ZWEIGNIEDERLASSUNG DEUTSCHLAND |
| 10837454 | Turbomachine | Oct 26, 17 | Nov 17, 20 | Siemens Aktiengesellschaft |
| 10823174 | Planetary gear device with an oil supply appliance, gas turbine engine with a planetary gear device and method for manufacturing a vane pump | Mar 26, 19 | Nov 03, 20 | Rolls-Royce Deutschland Ltd & Co KG |
| 10474787 | Method for designing centrifugal pump and mixed flow pump having specific speed of 150-1200 | Dec 16, 14 | Nov 12, 19 | KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY |
| 10385851 | Fluid transfer using devices with rotatable housings | Nov 23, 15 | Aug 20, 19 | DEKA Products Limited Partnership |
| 10280925 | Pressure reducing rotor assembly for a pump | Jul 05, 17 | May 07, 19 | EnviroTech Pumpsystems Inc. |
| 10274093 | Centrifugal pump | May 22, 15 | Apr 30, 19 | GRUNDFOS HOLDING A/S |
| 10267333 | Cross-flow wave making pump | May 17, 17 | Apr 23, 19 | Guangzhou Maiguang Electronic Science Technology Co., Ltd. |
| 10234017 | Coupling and a method of using the same | Sep 09, 15 | Mar 19, 19 | Rolls Royce plc |
| 10151314 | Gear-driven flow-through pitot tube pump | Mar 13, 14 | Dec 11, 18 | EnviroTech Pumpsystems Inc. |
| 10082411 | Pitot tube stabilizer arrangement for centrifugal pumps | Sep 13, 16 | Sep 25, 18 | EnviroTech Pumpsystems Inc. |
| 10060290 | Method and system for centrifugal pump | Dec 30, 15 | Aug 28, 18 | General Electric Company |
| 9719516 | Pressure reducing rotor assembly for a pump | Jun 12, 15 | Aug 01, 17 | ENVIROTECH PUMPSYSTEMS, INC. |
| 9709059 | Cross-flow wave making pump | Apr 11, 14 | Jul 18, 17 | GUANGZHOU MAIGUANG ELECTRONIC SCIENCE TECHNOLOGY SHAREHOLDING CO., LTD. |
| 9695826 | Pitot tube pump and related methods | Jun 28, 13 | Jul 04, 17 | Not available |
| 9194392 | Fluid transfer using devices with rotatable housings | Jan 23, 09 | Nov 24, 15 | DEKA PRODUCTS LIMITED PARTNERSHIP |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2019/0301,466 | PLANETARY GEAR DEVICE WITH AN OIL SUPPLY APPLIANCE, GAS TURBINE ENGINE WITH A PLANETARY GEAR DEVICE AND METHOD FOR MANUFACTURING A VANE PUMP | Mar 26, 19 | Oct 03, 19 | Not available |
| 2019/0264,691 | TURBOMACHINE | Oct 26, 17 | Aug 29, 19 | Siemens Aktiengesellschaft |
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