F04D 29/041
Axial thrust balancing
F04D29/041 (Axial thrust balancing) appears on 563 US grants and 522 published applications in this corpus.
Search patents in F04D- Granted patents
- 563
- Published applications
- 522
- Assignees
- 294
- Inventors
- 1,040
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 9 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 9 | 0 |
| 1993 | 8 | 0 |
| 1994 | 11 | 0 |
| 1995 | 5 | 0 |
| 1996 | 9 | 0 |
| 1997 | 8 | 0 |
| 1998 | 8 | 0 |
| 1999 | 11 | 0 |
| 2000 | 18 | 0 |
| 2001 | 13 | 1 |
| 2002 | 3 | 4 |
| 2003 | 8 | 2 |
| 2004 | 2 | 3 |
| 2005 | 2 | 11 |
| 2006 | 3 | 6 |
| 2007 | 6 | 8 |
| 2008 | 4 | 20 |
| 2009 | 2 | 7 |
| 2010 | 10 | 6 |
| 2011 | 7 | 10 |
| 2012 | 9 | 8 |
| 2013 | 5 | 12 |
| 2014 | 10 | 21 |
| 2015 | 9 | 28 |
| 2016 | 16 | 31 |
| 2017 | 24 | 52 |
| 2018 | 24 | 40 |
| 2019 | 50 | 53 |
| 2020 | 46 | 32 |
| 2021 | 31 | 47 |
| 2022 | 34 | 32 |
| 2023 | 42 | 20 |
| 2024 | 32 | 20 |
| 2025 | 22 | 23 |
| 2026 | 17 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluid pump and method of manufacturing same6 Oct 2026US 12,753,765 B2Temco Industrial, LLC
- Split thrust chamber for downhole pump25 Aug 2026US 12,716,417 B2Halliburton Energy Services.Inc.
- Centrifugal pump18 Aug 2026US 12,710,048 B2Sulzer Management AG
- Electric motor-integrated rocket engine pump21 Jul 2026US 12,687,169 B2Industry-University Cooperation Foundation Hanyang University Erica Campus
- Magnetic fluid pump assembly for aquarium14 Jul 2026US 12,680,547 B2EcoTech, LLC
- Canned Rotodynamic Flow Machine For A Molten Salt Nuclear Reactor And An Active Magnetic Bearing For Use In A Flow Machine For A Molten Salt Nuclear Reactor20 Aug 2026US 2026/0243262 A1Copenhagen Atomics A/S
- Liquid transfer pump30 Jul 2026US 2026/0218708 A1Zhejiang Ele Smart Technology Co., Ltd.
- Displacement unit for an electric submersible pump30 Jul 2026US 2026/0218709 A1Schlumberger Technology Corporation
- Micro-axial pump having asymmetrical stator teeth30 Jul 2026US 2026/0223323 A1Hewlett Packard Enterprise Development LP
- Fluid pump and method of manufacturing sam23 Jul 2026US 2026/0210361 A1Temco Industrial, LLC
Most cited
By later US patents
- Percutaneous axial flow blood pump422US 4,944,722 ANimbus Medical, Inc. · 1990
- Axial flow blood pump with hydrodynamically suspended rotor386US 5,211,546 ANu-Tech Industries, Inc. · 1993
- Bearingless blood pump and electronic drive system372US 6,071,093 AABIOMED, Inc. · 2000
- Implantable electric axial-flow blood pump344US 5,588,812 ANimbus, Inc. · 1996
- Active magnetic bearing system for blood pump319US 6,264,635 B1Kriton Medical, Inc. · 2001