F04F 5/00
Jet pumps, i.e. devices in which flow is induced by pressure drop
Official title: Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow (diffusion pumps F04F9/00; combination of jet pumps with pumps of other than jet type F04B; use of jet pumps for priming or boosting non-positive-displacement pumps F04D)
F04F5/00 (Jet pumps, i.e. devices in which flow is induced by pressure drop) appears on 1,435 US grants and 1,349 published applications in this corpus.
Search patents in F04F- Granted patents
- 1,435
- Published applications
- 1,349
- Assignees
- 709
- Inventors
- 2,630
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 15 | 0 |
| 1978 | 8 | 0 |
| 1979 | 10 | 0 |
| 1980 | 9 | 0 |
| 1981 | 15 | 0 |
| 1982 | 11 | 0 |
| 1983 | 20 | 0 |
| 1984 | 13 | 0 |
| 1985 | 13 | 0 |
| 1986 | 20 | 0 |
| 1987 | 9 | 0 |
| 1988 | 17 | 0 |
| 1989 | 19 | 0 |
| 1990 | 12 | 0 |
| 1991 | 14 | 0 |
| 1992 | 13 | 0 |
| 1993 | 10 | 0 |
| 1994 | 13 | 0 |
| 1995 | 14 | 0 |
| 1996 | 16 | 0 |
| 1997 | 19 | 0 |
| 1998 | 14 | 0 |
| 1999 | 16 | 0 |
| 2000 | 32 | 0 |
| 2001 | 37 | 3 |
| 2002 | 37 | 26 |
| 2003 | 29 | 34 |
| 2004 | 28 | 36 |
| 2005 | 22 | 34 |
| 2006 | 21 | 27 |
| 2007 | 10 | 26 |
| 2008 | 15 | 32 |
| 2009 | 12 | 33 |
| 2010 | 16 | 58 |
| 2011 | 25 | 49 |
| 2012 | 30 | 61 |
| 2013 | 50 | 82 |
| 2014 | 49 | 62 |
| 2015 | 45 | 86 |
| 2016 | 38 | 80 |
| 2017 | 76 | 63 |
| 2018 | 66 | 83 |
| 2019 | 77 | 76 |
| 2020 | 73 | 65 |
| 2021 | 57 | 68 |
| 2022 | 57 | 70 |
| 2023 | 77 | 60 |
| 2024 | 51 | 67 |
| 2025 | 47 | 37 |
| 2026 | 28 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F04F 5/44Component parts, details, or accessories not provided for in, or of interest854
- F04F 5/14The inducing fluid being elastic fluid710
- F04F 5/02The inducing fluid being liquid318
- F04F 5/54Installations characterised by use of jet pumps219
- F04F 5/42Jet pumps, i.e. devices in which flow is induced by pressure drop60
Recent patents
- Blower6 Oct 2026US 12,753,779 B2LG Electronics Inc.
- System for controlling temperature and pressure inside a propellant tank29 Sep 2026US 12,747,742 B1United Launch Alliance, L.L.C.
- Two-stage jet device with flow guide structure15 Sep 2026US 12,736,066 B2Jiangsu University
- Bladeless fans with a nozzle18 Aug 2026US 12,710,053 B2SharkNinja Operating LLC
- Pressure boosting system for multi-phase crude oil28 Jul 2026US 12,692,988 B2Al-Khorayef Petroleum Company
- Pump arrangement24 Sep 2026US 2026/0286983 A1ECP Entwicklungsgesselschaft mbH
- Non-electromechanical, pumpless liquid recirculation system for air-cooled condenser and cooler adiabatic pre-cooling system24 Sep 2026US 2026/0287262 A1
- Steam special effect sprayer and related special effect system17 Sep 2026US 2026/0276008 A1ITMation Ltd.
- Ejector jet pump17 Sep 2026US 2026/0279857 A1
- Jet pump10 Sep 2026US 2026/0266315 A1Liberty Pumps, Inc.
Most cited
By later US patents
- Gas turbine inlet air combined pressure boost and cooling method and apparatus207US 5,537,813 ACarolina Power & Light Company · 1996
- Pump arrangement149US 9,328,741 B2Ecp Entwicklungsgesellschaft Mbh · 2016
- Air flow amplifier146US 4,046,492 AVortec Corporation · 1977
- Marine propulsion system133US 4,718,870 ATechmet Corporation · 1988
- Fluid-flow assisting devices124US 4,037,991 APlessey Incorporated · 1977