F04F 5/24
Displacing liquids
Official title: displacing liquids, e.g. containing solids, or liquids and elastic fluids
F04F5/24 (Displacing liquids) appears on 140 US grants and 134 published applications in this corpus.
Search patents in F04F- Granted patents
- 140
- Published applications
- 134
- Assignees
- 123
- Inventors
- 284
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 2 |
| 2002 | 5 | 3 |
| 2003 | 8 | 4 |
| 2004 | 3 | 4 |
| 2005 | 2 | 1 |
| 2006 | 2 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 2 | 6 |
| 2012 | 3 | 4 |
| 2013 | 3 | 3 |
| 2014 | 2 | 7 |
| 2015 | 2 | 8 |
| 2016 | 4 | 11 |
| 2017 | 4 | 11 |
| 2018 | 9 | 12 |
| 2019 | 10 | 7 |
| 2020 | 14 | 8 |
| 2021 | 3 | 6 |
| 2022 | 7 | 11 |
| 2023 | 8 | 5 |
| 2024 | 3 | 5 |
| 2025 | 5 | 7 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pressure boosting system for multi-phase crude oil28 Jul 2026US 12,692,988 B2Al-Khorayef Petroleum Company
- Aerosol-generating system and method of dispensing liquid aerosol-forming substrate with pumped air7 Jul 2026US 12,672,676 B2Altria Client Services LLC
- Conveying device for conveying a liquid/gas mixture taken from a borehole16 Jun 2026US 12,655,856 B2Leistritz Pumpen GmbH
- Motionless molten salt pump on leverage of pressure variation force10 Feb 2026US 12,546,337 B2UNM Rainforest Innovations
- System for atomizing and ejecting liquid for transdermal delivery27 Jan 2026US 12,533,694 B2L'oreal
- Ejector jet pump17 Sep 2026US 2026/0279857 A1
- Jet pump10 Sep 2026US 2026/0266315 A1Liberty Pumps, Inc.
- Gas sparger head for airlift geothermal systems28 May 2026US 2026/0146517 A1West Virginia University Board of Governors on Behaft of West Virginia University
- Jet ejector arrangement, system and use thereof and method for operating the same4 Sep 2025US 2025/0276337 A1Yara International Asa
- Steam special effect sprayer and related special effect system3 Jul 2025US 2025/0215904 A1ITMation Ltd.
Most cited
By later US patents
- Method for dispensing a solution97US 6,659,117 B2E-Z Flo Injection Systems, Inc. · 2003
- Ejector80US 6,682,002 B2Ebara Corporation · 2004
- Hose-end chemical delivery system49US 6,604,546 B1E-Z Flo Injection Systems, Inc. · 2003
- Apparatus and methods for moving a working fluid by contact with a transport fluid46US 7,111,975 B2Pursuit Dynamics PLC · 2006
- Submersed jet pump method for generating a stream of water35US 5,478,208 AMarine Giken Co., Ltd. · 1995