F04D 29/061
Especially adapted for liquid pumps
Official title: {especially adapted for liquid pumps}
F04D29/061 (Especially adapted for liquid pumps) appears on 252 US grants and 228 published applications in this corpus.
Search patents in F04D- Granted patents
- 252
- Published applications
- 228
- Assignees
- 182
- Inventors
- 566
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 10 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 8 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 0 |
| 2002 | 3 | 3 |
| 2003 | 3 | 3 |
| 2004 | 3 | 4 |
| 2005 | 5 | 6 |
| 2006 | 1 | 4 |
| 2007 | 1 | 1 |
| 2008 | 2 | 1 |
| 2009 | 2 | 3 |
| 2010 | 3 | 2 |
| 2011 | 1 | 3 |
| 2012 | 2 | 5 |
| 2013 | 2 | 9 |
| 2014 | 2 | 9 |
| 2015 | 6 | 11 |
| 2016 | 8 | 16 |
| 2017 | 6 | 23 |
| 2018 | 12 | 16 |
| 2019 | 24 | 16 |
| 2020 | 18 | 15 |
| 2021 | 14 | 19 |
| 2022 | 11 | 17 |
| 2023 | 13 | 17 |
| 2024 | 21 | 12 |
| 2025 | 12 | 4 |
| 2026 | 8 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Split thrust chamber for downhole pump25 Aug 2026US 12,716,417 B2Halliburton Energy Services.Inc.
- Pump, a bearing assembly for a pump and a method of assembling the bearing assembly26 May 2026US 12,638,053 B2Edwards Limited
- Intravascular blood pumps, motors, and fluid control14 Apr 2026US 12,599,758 B2Shifamed Holdings, LLC
- Seal configuration for high density lubrication oils7 Apr 2026US 12,595,805 B2Baker Hughes Oilfield Operations LLC
- Oil pan for internal combustion engine3 Mar 2026US 12,565,852 B2Arctic Cat Inc.
- Line shaft pump for extracting a fluid from a geothermal well16 Jul 2026US 2026/0201896 A1Sulzer Management AG
- Oil pan for internal combustion engine9 Jul 2026US 2026/0194004 A1Arctic Cat Inc.
- Methods, systems, and apparatus to control a fluid provided to components in a fluid pump of a closed loop system2 Jul 2026US 2026/0185540 A1General Electric Company
- Bearing assemblies, apparatuses, devices, systems, and methods including bearings18 Jun 2026US 2026/0168507 A1ChampionX LLC
- Split thrust chamber for downhole pump11 Jun 2026US 2026/0160256 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Cardiac assist pump with steady rate supply of fluid lubricant443US 4,927,407 ARegents of the University of Minnesota · 1990
- Environmentally safe pump including seal93US 5,499,902 AEnvironamics Corporation · 1996
- Magnetically coupled centrifugal pump with improved casting and lubrication67US 5,248,245 AIngersoll-Dresser Pump Company · 1993
- Vertical type antifriction bearing device61US 4,037,890 AHitachi, Ltd. · 1977
- Active thrust management of a turbopump within a supercritical working fluid circuit in a heat engine system57US 10,570,777 B2Echogen Power Systems, LLC · 2020