F04D 29/106
Especially adapted for liquid pumps
Official title: {especially adapted for liquid pumps}
F04D29/106 (Especially adapted for liquid pumps) appears on 386 US grants and 337 published applications in this corpus.
Search patents in F04D- Granted patents
- 386
- Published applications
- 337
- Assignees
- 261
- Inventors
- 818
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 12 | 0 |
| 1992 | 10 | 0 |
| 1993 | 4 | 0 |
| 1994 | 7 | 0 |
| 1995 | 3 | 0 |
| 1996 | 8 | 0 |
| 1997 | 5 | 0 |
| 1998 | 10 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 7 | 2 |
| 2002 | 5 | 6 |
| 2003 | 6 | 16 |
| 2004 | 7 | 5 |
| 2005 | 9 | 12 |
| 2006 | 4 | 7 |
| 2007 | 2 | 8 |
| 2008 | 6 | 7 |
| 2009 | 2 | 7 |
| 2010 | 7 | 12 |
| 2011 | 3 | 7 |
| 2012 | 3 | 12 |
| 2013 | 6 | 12 |
| 2014 | 7 | 23 |
| 2015 | 13 | 14 |
| 2016 | 14 | 25 |
| 2017 | 17 | 28 |
| 2018 | 9 | 20 |
| 2019 | 27 | 21 |
| 2020 | 16 | 15 |
| 2021 | 25 | 19 |
| 2022 | 18 | 19 |
| 2023 | 14 | 9 |
| 2024 | 15 | 15 |
| 2025 | 14 | 6 |
| 2026 | 4 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sacrificial anode assembly for a seal section of an electric submersible pump (ESP) assembly1 Sep 2026US 12,723,593 B2Halliburton Energy Services.Inc.
- Electric coolant pump with expansion compensating seal18 Aug 2026US 12,710,051 B2Multi Parts Supply USA, Inc.
- Pump unit, pump system, and pump system operation method30 Jun 2026US 12,669,128 B2Nikkiso Co., Ltd.
- Seal configuration for high density lubrication oils7 Apr 2026US 12,595,805 B2Baker Hughes Oilfield Operations LLC
- Pump for delivering a fluid and method of manufacturing a pump25 Nov 2025US 12,478,776 B2Kardion GmbH
- Water pump device17 Sep 2026US 2026/0275995 A1Spring Come Industrial Co., Ltd.
- Enhanced discharge pump for household appliances and washing machine or dishwasher comprising said discharge pump13 Aug 2026US 2026/0235139 A1Askoll Holding S.r.l.
- Pump system30 Jul 2026US 2026/0218719 A1Pentair Flow Technologies, LLC
- Vortex slurry pump23 Jul 2026US 2026/0210362 A1
- Sealing assembly and vertical pump/mixer comprising the sealing assembly18 Jun 2026US 2026/0166503 A1Sulzer Management AG
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
- Anti-thrombogenic blood pump338US 4,704,121 ANimbus, Inc. · 1987
- Centrifugal blood pump for cardiac assist307US 4,135,253 AMedtronic, Inc. · 1979
- Fluid motor driven blood pump236US 5,145,333 AThe Cleveland Clinic Foundation · 1992
- Viscous seal blood pump142US 5,098,256 AThe Cleveland Clinic Foundation · 1992