F04D 3/02
Axial-flow pumps: of screw type
Official title: of screw type
F04D3/02 (Axial-flow pumps: of screw type) appears on 277 US grants and 245 published applications in this corpus.
Search patents in F04D- Granted patents
- 277
- Published applications
- 245
- Assignees
- 155
- Inventors
- 428
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 10 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 6 |
| 2002 | 13 | 5 |
| 2003 | 9 | 1 |
| 2004 | 5 | 5 |
| 2005 | 1 | 6 |
| 2006 | 2 | 5 |
| 2007 | 3 | 8 |
| 2008 | 5 | 4 |
| 2009 | 2 | 5 |
| 2010 | 2 | 4 |
| 2011 | 6 | 4 |
| 2012 | 0 | 3 |
| 2013 | 6 | 10 |
| 2014 | 3 | 5 |
| 2015 | 7 | 11 |
| 2016 | 7 | 13 |
| 2017 | 8 | 8 |
| 2018 | 10 | 13 |
| 2019 | 9 | 17 |
| 2020 | 11 | 11 |
| 2021 | 17 | 27 |
| 2022 | 11 | 11 |
| 2023 | 20 | 13 |
| 2024 | 21 | 21 |
| 2025 | 19 | 12 |
| 2026 | 9 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid pump and method of manufacturing same6 Oct 2026US 12,753,765 B2Temco Industrial, LLC
- Non-occluding intravascular blood pump providing reduced hemolysis15 Sep 2026US 12,736,054 B2Procyrion, Inc.
- Intravascular fluid pump having a longitudinally elastically stretchable rotor7 Jul 2026US 12,674,466 B2Ecp Entwicklungsgesellschaft Mbh
- Impeller frame2 Jun 2026US 12,642,955 B2Magenta Medical Ltd.
- Submersible pump5 May 2026US 12,618,409 B2Vortex Pipe Systems LLC
- Rotor for a fluid pump, and method and mold for manufacturing same24 Sep 2026US 2026/0286968 A1Ecp Entwicklungsgesellschaft Mbh
- Blood pump with modified liner10 Sep 2026US 2026/0263780 A1Abiomed Europe GmbH
- Pump stator tie-layer with surface roughness20 Aug 2026US 2026/0243253 A1Schlumberger Technology Corporation
- Stator assembly for micro-axial pump6 Aug 2026US 2026/0231360 A1Hewlett Packard Enterprise Development LP
- Encapsulant retaining wrap for micro-axial pump6 Aug 2026US 2026/0231365 A1Hewlett Packard Enterprise Development LP
Most cited
By later US patents
- Self-deploying axial-flow pump introduced intravascularly for temporary cardiac support480US 6,533,716 B12003
- Heart assist device with expandable impeller pump411US 7,841,976 B2The Penn State Research Foundation · 2010
- Expandable impeller pump391US 7,393,181 B2Datascope Investment Corp. · 2008
- Method for providing a jewel bearing for supporting a pump rotor shaft388US 6,254,359 B1The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 2001
- Expandable impeller pump296US 7,927,068 B2The Penn State Research Foundation · 2011