F04B 47/08
The motors being actuated by fluid
Official title: the motors being actuated by fluid
F04B47/08 (The motors being actuated by fluid) appears on 228 US grants and 128 published applications in this corpus.
Search patents in F04B- Granted patents
- 228
- Published applications
- 128
- Assignees
- 110
- Inventors
- 295
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 8 | 0 |
| 1984 | 12 | 0 |
| 1985 | 11 | 0 |
| 1986 | 7 | 0 |
| 1987 | 3 | 0 |
| 1988 | 8 | 0 |
| 1989 | 8 | 0 |
| 1990 | 3 | 0 |
| 1991 | 7 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 2 |
| 2003 | 1 | 1 |
| 2004 | 2 | 4 |
| 2005 | 3 | 9 |
| 2006 | 2 | 9 |
| 2007 | 6 | 5 |
| 2008 | 4 | 7 |
| 2009 | 2 | 3 |
| 2010 | 3 | 3 |
| 2011 | 5 | 12 |
| 2012 | 2 | 5 |
| 2013 | 11 | 8 |
| 2014 | 5 | 3 |
| 2015 | 4 | 5 |
| 2016 | 4 | 5 |
| 2017 | 0 | 7 |
| 2018 | 6 | 9 |
| 2019 | 2 | 2 |
| 2020 | 9 | 6 |
| 2021 | 3 | 6 |
| 2022 | 4 | 6 |
| 2023 | 6 | 4 |
| 2024 | 5 | 5 |
| 2025 | 7 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Magneto-hydraulic plunger pump unit7 Apr 2026US 12,595,792 B2Obschestvo S Organichennoy Otvetstvennostyu “Mg Pamp”
- Hydraulically actuated double-acting positive displacement pump system for producing fluids from a wellbore9 Dec 2025US 12,492,620 B2PMC Pumps Inc.
- Inline landfill pump cycle counter9 Dec 2025US 12,492,696 B2Graco Minnesota Inc.
- Double-acting downhole hydraulic reciprocating pump system and methods of using same18 Nov 2025US 12,473,907 B1
- System, apparatus and method for artificial lift, and improved downhole actuator for same28 Oct 2025US 12,454,881 B2
- Downhole Pump23 Jul 2026US 2026/0210222 A1
- Magneto-Hydraulic Plunger Pump Unit28 Aug 2025US 2025/0270990 A1Obschestvo S Organichennoy Otvetstvennostyu “Mg Pamp”
- Pump7 Nov 2024US 2024/0369076 A1
- System, apparatus and method for artificial lift, and improved downhole actuator for same3 Oct 2024US 2024/0328291 A1Universal Downhole Technologies, Inc.
- Hydraulically actuated double-acting positive displacement pump system for producing fluids from a wellbore15 Feb 2024US 2024/0052732 A1PMC Pumps Inc.
Most cited
By later US patents
- Bladder pump assembly103US 4,886,432 AEngineering Enterprises, Inc. · 1989
- Extraction system with a pump having an elastic rebound inner tube86US 4,974,674 AWestinghouse Electric Corp. · 1990
- Downhole well pump64US 7,270,186 B2Burlington Resources Oil & Gas Company LP · 2007
- High efficiency pump method and apparatus with hydraulic actuation44US 4,861,239 ARent S.R.L. · 1989
- Fluid-powered submersible sampling pump41US 4,295,801 A1981