Class F04F : PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED
Subclass 1/02: Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped (using only negative pressure F04F 3/00; jet pumps F04F 5/00; siphons F04F 10/00) using both positively and negatively pressurised fluid medium, e.g. alternating
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12076720 | Fluid control | Apr 12, 21 | Sep 03, 24 | LumiraDx UK Ltd |
| 12025421 | Transport of explosives | Apr 20, 21 | Jul 02, 24 | AECI Mining Limited |
| 11698066 | Pressure-controlling device, and pressure-using apparatus | Nov 21, 19 | Jul 11, 23 | Murata Manufacturing Co Ltd. |
| 11536296 | High-density powder pump | Jul 14, 17 | Dec 27, 22 | VERNE TECHNOLOGY S.R.L. |
| 11000847 | Fluid control | Jun 30, 17 | May 11, 21 | LumiraDx UK Ltd |
| 10823204 | Pumping system and method | Aug 12, 11 | Nov 03, 20 | Not available |
| 10808731 | Multifunctional air extraction boosting pump | Sep 04, 18 | Oct 20, 20 | Not available |
| 10604360 | Dense phase powder pump and corresponding operating method | Sep 24, 18 | Mar 31, 20 | GEMA SWITZERLAND GMBH |
| 10557480 | Pumping systems and methods | Apr 05, 19 | Feb 11, 20 | Not available |
| 10527064 | Pneumatic pump | Jun 18, 14 | Jan 07, 20 | SOLIDSVAC PTY LTD |
| 10139010 | Fluid transfer device based on pneumatic sucking and expelling | Sep 07, 16 | Nov 27, 18 | CHUAN JIING ENTERPRISE CO., LTD. |
| 10112787 | Dense phase powder pump and corresponding operating method | Mar 18, 14 | Oct 30, 18 | GEMA SWITZERLAND GMBH |
| 10030674 | Sterile liquid pump with single use elements | Dec 07, 15 | Jul 24, 18 | Not available |
| 9765769 | Sterile liquid pump with single use elements | Apr 22, 15 | Sep 19, 17 | Not available |
| 9745148 | Powder conveyor and associated operating method | Mar 18, 14 | Aug 29, 17 | GEMA SWITZERLAND GMBH |
| 9664019 | Underwater gas field development methods and systems | Aug 01, 13 | May 30, 17 | S.G.B.D. TECHNOLOGIES LTD. |
| 9599127 | Hydraulic circuit supply system | Jan 21, 14 | Mar 21, 17 | DEERE & COMPANY |
| 9512929 | Pressure balanced rotation spool valve | Jan 26, 12 | Dec 06, 16 | FMC KONGSBERG SUBSEA AS |
| 9212669 | Pneumatic evacuation pump | Jun 04, 08 | Dec 15, 15 | PENTAIR FLOW TECHNOLOGIES PACIFIC PTY LTD |
| 9162410 | Compression of a water-saturated medium | May 09, 12 | Oct 20, 15 | LINDE AKTIENGESELLSCHAFT |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0091,047 | FLUID CONTROL | Jul 23, 24 | Mar 20, 25 | Not available |
| 2021/0301,836 | Method and Device for Compressing a Gas | Jul 17, 19 | Sep 30, 21 | SIEMENS AKTIENGESELLSCHAFT |
| 2020/0200,191 | SIMPLE PNEUMATIC EJECTOR PUMP WITH EXHAUST VALVE FOR CONTINUOUS FLOW AIR SOURCE SYSTEM AND METHOD OF USE | Nov 29, 19 | Jun 25, 20 | Not available |
| 2018/0283,406 | METHOD AND DEVICE FOR PUMPING A PRODUCT BY SUCTION | Oct 05, 16 | Oct 04, 18 | ORTEC EXPANSION |
| 2017/0016,458 | Simple Positive Displacement Pump Suitable for Pharmaceutical, Chemical, Biological, Viscous, Dense, Particulate Laden Fluids and Other Demanding Applications | Jul 15, 16 | Jan 19, 17 | Materials and Technologies Corporation |
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