F04B 47/02
The driving mechanisms being situated at ground level
Official title: the driving mechanisms being situated at ground level (F04B47/12 takes precedence)
F04B47/02 (The driving mechanisms being situated at ground level) appears on 1,154 US grants and 948 published applications in this corpus.
Search patents in F04B- Granted patents
- 1,154
- Published applications
- 948
- Assignees
- 471
- Inventors
- 1,632
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 9 | 0 |
| 1978 | 9 | 0 |
| 1979 | 9 | 0 |
| 1980 | 13 | 0 |
| 1981 | 15 | 0 |
| 1982 | 13 | 0 |
| 1983 | 21 | 0 |
| 1984 | 30 | 0 |
| 1985 | 33 | 0 |
| 1986 | 19 | 0 |
| 1987 | 28 | 0 |
| 1988 | 18 | 0 |
| 1989 | 7 | 0 |
| 1990 | 8 | 0 |
| 1991 | 10 | 0 |
| 1992 | 8 | 0 |
| 1993 | 12 | 0 |
| 1994 | 18 | 0 |
| 1995 | 13 | 0 |
| 1996 | 4 | 0 |
| 1997 | 9 | 0 |
| 1998 | 14 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 14 | 4 |
| 2002 | 17 | 13 |
| 2003 | 13 | 5 |
| 2004 | 8 | 13 |
| 2005 | 8 | 18 |
| 2006 | 10 | 20 |
| 2007 | 7 | 8 |
| 2008 | 12 | 22 |
| 2009 | 12 | 16 |
| 2010 | 9 | 22 |
| 2011 | 13 | 28 |
| 2012 | 20 | 30 |
| 2013 | 26 | 33 |
| 2014 | 31 | 41 |
| 2015 | 24 | 57 |
| 2016 | 27 | 45 |
| 2017 | 29 | 91 |
| 2018 | 60 | 76 |
| 2019 | 72 | 63 |
| 2020 | 74 | 51 |
| 2021 | 60 | 55 |
| 2022 | 58 | 64 |
| 2023 | 70 | 55 |
| 2024 | 49 | 56 |
| 2025 | 52 | 40 |
| 2026 | 26 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multi-phase fluid pump system with driving fluid and pump fluid cylinders and buffer chambers22 Sep 2026US 12,742,449 B2I-Jack Technologies Incorporated
- Stationary plunger packing28 Jul 2026US 12,692,862 B2Halliburton Energy Services.Inc.
- Alternator and electronic fuel injection for oil well pumps23 Jun 2026US 12,663,000 B2Integrated Power Solutions Inc.
- Signal distribution device for a fluid pump16 Jun 2026US 12,655,839 B2Caterpillar Inc.
- Managing regenerative energy of reciprocating pumping unit26 May 2026US 12,637,929 B2Weatherford Technology Holdings, LLC
- Managing regenerative energy of reciprocating pumping unit8 Oct 2026US 2026/0309009 A1Weatherford Technology Holdings, LLC
- Adaptable sucker rod pump controller and system suitable for use with various well topologies17 Sep 2026US 2026/0275981 A1Ravdos Holdings Inc.
- Robust Downhole Pump Barrel20 Aug 2026US 2026/0243245 A1Q2 Artificial Lift Services LLC
- High pressure gas lift optimization30 Jul 2026US 2026/0218699 A1Flowco MasterCo LLC
- Downhole Pump23 Jul 2026US 2026/0210222 A1
Most cited
By later US patents
- Mobile, modular, electrically powered system for use in fracturing underground formations358US 9,103,193 B2Evolution Well Services, LLC · 2015
- System and method for powering a hydraulic pump357US 8,997,904 B2General Electric Company · 2015
- Mobile, modular, electrically powered system for use in fracturing underground formations334US 9,366,114 B2Evolution Well Services, LLC · 2016
- Systems and methods for routing pressurized fluid305US 8,905,056 B2Halliburton Energy Services.Inc. · 2014
- Mobile, modular, electrically powered system for use in fracturing underground formations305US 9,121,257 B2Evolution Well Services, LLC · 2015