F04D 29/181
Axial flow rotors
Official title: {Axial flow rotors (F04D29/185 take precedence)}
F04D29/181 (Axial flow rotors) appears on 455 US grants and 475 published applications in this corpus.
Search patents in F04D- Granted patents
- 455
- Published applications
- 475
- Assignees
- 231
- Inventors
- 680
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 9 | 0 |
| 2001 | 5 | 2 |
| 2002 | 7 | 5 |
| 2003 | 9 | 3 |
| 2004 | 5 | 7 |
| 2005 | 2 | 6 |
| 2006 | 5 | 4 |
| 2007 | 1 | 10 |
| 2008 | 7 | 3 |
| 2009 | 5 | 15 |
| 2010 | 3 | 4 |
| 2011 | 7 | 11 |
| 2012 | 5 | 16 |
| 2013 | 6 | 16 |
| 2014 | 6 | 9 |
| 2015 | 11 | 22 |
| 2016 | 21 | 33 |
| 2017 | 15 | 24 |
| 2018 | 23 | 24 |
| 2019 | 32 | 51 |
| 2020 | 32 | 24 |
| 2021 | 27 | 45 |
| 2022 | 45 | 34 |
| 2023 | 38 | 27 |
| 2024 | 38 | 36 |
| 2025 | 28 | 26 |
| 2026 | 17 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Extraction impeller for axial compressor6 Oct 2026US 12,753,769 B2GE Vernova Infrastructure Technology LLC
- Non-occluding intravascular blood pump providing reduced hemolysis15 Sep 2026US 12,736,054 B2Procyrion, Inc.
- Conveying blades for a compressible rotor25 Aug 2026US 12,716,423 B2Ecp Entwicklungsgesellschaft Mbh
- Magnetic drive, seal-less pump28 Jul 2026US 12,692,872 B2
- Fish guide device for pump and axial flow pump/tubular flow pump station21 Jul 2026US 12,687,173 B2Jiangsu University
- Rotor for a fluid pump, and method and mold for manufacturing same24 Sep 2026US 2026/0286968 A1Ecp Entwicklungsgesellschaft Mbh
- Pump arrangement24 Sep 2026US 2026/0286983 A1ECP Entwicklungsgesselschaft mbH
- Blood pump with modified liner10 Sep 2026US 2026/0263780 A1Abiomed Europe GmbH
- Submersible Semi-Axial Centrifugal Pump and Impeller for Such Pump27 Aug 2026US 2026/0251149 A1Xylem Europe GmbH
- Radially compressible and expandable rotor for a pump having an impeller blade20 Aug 2026US 2026/0243269 A1Ecp Entwicklungsgesellschaft Mbh
Most cited
By later US patents
- Single-stage axial flow blood pump493US 4,846,152 ANimbus Medical, Inc. · 1989
- Self-deploying axial-flow pump introduced intravascularly for temporary cardiac support480US 6,533,716 B12003
- Helifoil pump441US 4,969,865 AAmerican BioMed, Inc. · 1990
- 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