Description
Class F04F : PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED
Subclass 3/00: Pumps using negative pressure acting directly on the liquid to be pumped (siphons F04F 10/00)
F04F 3/00
Sub-Class
Stats
- 47 US PATENTS IN FORCE
- 2 US APPLICATIONS PENDING
- 31 Total Patent Owners
- 196 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12140161 | Apparatus and method for moving viscous fluid by suction | Dec 10, 20 | Nov 12, 24 | DANHYDRA A/S |
| 11767235 | Vacuum air lift systems including a fluidic oscillator | Oct 07, 21 | Sep 26, 23 | Searen, LLC |
| 11555638 | Venturi vacuum drawback assemblies and dual orifice venturi valve assemblies | Mar 26, 20 | Jan 17, 23 | DWYER INSTRUMENTS, LLC |
| 11161756 | Vacuum air lift systems including a photobioreactor | Mar 06, 20 | Nov 02, 21 | Searen, LLC |
| 11073140 | Liquid storage tank upper cover assembly of drawing or adding liquid machine and drawing or adding liquid machine | Jun 07, 19 | Jul 27, 21 | Jiashan Jinzhan Tool Co., Ltd. |
| 10808731 | Multifunctional air extraction boosting pump | Sep 04, 18 | Oct 20, 20 | Not available |
| 10618824 | Vacuum air lift systems including a fluidized bed reactor | Nov 06, 18 | Apr 14, 20 | Searen, LLC |
| 10557480 | Pumping systems and methods | Apr 05, 19 | Feb 11, 20 | Not available |
| 10233096 | Vacuum air lift systems and methods | Jul 26, 17 | Mar 19, 19 | Searen, LLC |
| 10219663 | Vacuum-assisted-pumping system and method | Jul 25, 16 | Mar 05, 19 | Not available |
| 10139010 | Fluid transfer device based on pneumatic sucking and expelling | Sep 07, 16 | Nov 27, 18 | CHUAN JIING ENTERPRISE CO., LTD. |
| 9850747 | Fissured substrata water pumping apparatus and method | Jan 25, 16 | Dec 26, 17 | CHINA UNIVERSITY OF MINING AND TECHNOLOGY |
| 9512857 | Liquid lifting device and liquid lifting method | Jul 17, 15 | Dec 06, 16 | MURATA MANUFACTURING CO., LTD. |
| 9506478 | Vacuum system | Jan 13, 12 | Nov 29, 16 | EDWARDS LIMITED |
| 9447795 | Fluid pumping system and a fluid turbine system including the fluid pumping system | Jun 10, 13 | Sep 20, 16 | UNITED ARAB EMIRATES UNIVERSITY |
| 9404487 | Apparatus and methods for evacuating air from a closed area | Mar 01, 12 | Aug 02, 16 | GAME CHANGERS, LLC |
| 9056419 | Sizing tank with electro-mechanical controlled water flows | Jul 08, 14 | Jun 16, 15 | Not available |
| 8983667 | Fluid flow management through a wastewater level manipulation system and associated methods | Oct 25, 13 | Mar 17, 15 | DATA FLOW SYSTEMS, INC. |
| 8858190 | Steam powered pump | Jan 15, 11 | Oct 14, 14 | WATSON MCDANIEL COMPANY |
| 8684031 | Apparatus for conveying a waste stream | Jul 19, 07 | Apr 01, 14 | EDWARDS LIMITED |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0369,077 | CONVEYING DEVICE FOR CONVEYING A LIQUID/GAS MIXTURE TAKEN FROM A BOREHOLE | Apr 29, 24 | Nov 07, 24 | Not available |
| 2015/0118,070 | AUTOMATIC DRAINING SYSTEM | Oct 23, 14 | Apr 30, 15 | FU DING ELECTRONICAL TECHNOLOGY (JIASHAN) CO.,LTD., HON HAI PRECISION INDUSTRY CO., LTD., |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 28 Months (last 2 years Issuances)
- 28 Months (last 5 years Issuances)