F04D 1/02
Radial-flow pumps: having non-centrifugal stages
Official title: having non-centrifugal stages, e.g. centripetal
F04D1/02 (Radial-flow pumps: having non-centrifugal stages) appears on 39 US grants and 48 published applications in this corpus.
Search patents in F04D- Granted patents
- 39
- Published applications
- 48
- Assignees
- 44
- Inventors
- 113
- Latest grant
- 24 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 3 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 5 |
| 2017 | 0 | 4 |
| 2018 | 3 | 3 |
| 2019 | 5 | 3 |
| 2020 | 6 | 4 |
| 2021 | 3 | 4 |
| 2022 | 1 | 3 |
| 2023 | 3 | 1 |
| 2024 | 2 | 3 |
| 2025 | 3 | 1 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Compressor for CO2 cycle with at least two cascade compression stages for assuring supercritical conditions24 Jun 2025US 12,338,827 B2Nuovo Pignone Tecnologie Srl
- High volume axial flow electric submersible pump (ESP) pump stage20 May 2025US 12,305,494 B2Halliburton Energy Services.Inc.
- Impeller and pump11 Mar 2025US 12,247,576 B2Mitsubishi Heavy Industries, Ltd.
- Sensing device, system and method for a pump13 Feb 2024US 11,898,577 B2Weir Minerals Australia Ltd.
- Charge pump for electric submersible pump (ESP) assembly9 Jan 2024US 11,867,035 B2Halliburton Energy Services.Inc.
- Submersible Semi-Axial Centrifugal Pump and Impeller for Such Pump27 Aug 2026US 2026/0251149 A1Xylem Europe GmbH
- Stator for a fluid machine, fluid machine comprising such a stator, and method for manufacturing such a stator11 Jun 2026US 2026/0160263 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Water-pump-integrated water cooling radiator for computer26 Feb 2026US 2026/0059703 A1Garsendee Technology Co., Ltd
- Pump unit24 Apr 2025US 2025/0129787 A1Ebara Corporation
- High volume axial flow electric submersible pump (esp) pump stage30 May 2024US 2024/0175339 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Blood pump using cross-flow principles295US 6,217,541 B1Kriton Medical, Inc. · 2001
- Single flow turbopump with integrated boosting56US 5,232,333 ASociete Europeenne de Propulsion · 1993
- Blood pump with separate mixed-flow and axial-flow impeller stages and multi-stage stators24US 10,434,232 B2HeartWare, Inc. · 2019
- Axial or worm-type centrifugal impeller pump23US 4,275,988 A1981
- Blood pump with separate mixed-flow and axial-flow impeller stages and multi-stage stators18US 10,111,994 B2HeartWare, Inc. · 2018