F04B 47/04
The driving means incorporating fluid means
Official title: the driving means incorporating fluid means
F04B47/04 (The driving means incorporating fluid means) appears on 231 US grants and 174 published applications in this corpus.
Search patents in F04B- Granted patents
- 231
- Published applications
- 174
- Assignees
- 112
- Inventors
- 301
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 5 | 0 |
| 1983 | 8 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 10 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 2 | 2 |
| 2006 | 1 | 4 |
| 2007 | 2 | 3 |
| 2008 | 0 | 7 |
| 2009 | 4 | 2 |
| 2010 | 3 | 6 |
| 2011 | 2 | 8 |
| 2012 | 5 | 7 |
| 2013 | 8 | 8 |
| 2014 | 7 | 8 |
| 2015 | 5 | 12 |
| 2016 | 8 | 11 |
| 2017 | 5 | 13 |
| 2018 | 12 | 17 |
| 2019 | 15 | 19 |
| 2020 | 18 | 7 |
| 2021 | 8 | 10 |
| 2022 | 9 | 7 |
| 2023 | 14 | 3 |
| 2024 | 10 | 6 |
| 2025 | 5 | 4 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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.
- Cooling for bellows pump14 Apr 2026US 12,601,343 B2Halliburton Energy Services.Inc.
- Hydraulic powerhouse system for an oil well pumping unit3 Feb 2026US 12,540,612 B2
- Regenerative pumping system and method27 Jan 2026US 12,535,087 B2Artificial Lift Production International Corp.
- Downhole Pump23 Jul 2026US 2026/0210222 A1
- Pneumatic Pump Cycle Counter25 Jun 2026US 2026/0176959 A1Shady Grove Road Investments, LLC
- Stationary plunger packing25 Jun 2026US 2026/0177054 A1Halliburton Energy Services.Inc.
- Gas compressor and system and method for gas compressing19 Mar 2026US 2026/0078751 A1I-Jack Technologies Incorporated
- Pneumatic Pump Cycle Counter12 Feb 2026US 2026/0043327 A1
Most cited
By later US patents
- Refueling method for supplying fuel to fracturing equipment185US 9,856,131 B12018
- Apparatus for harnessing and storage of wind energy70US 4,358,250 A1982
- Well head gas counter balanced and operated actuator for oil well pumps43US 3,986,355 A1976
- Refueling system for supplying fuel to hydraulic fracturing equipment40US 9,371,830 B22016
- Refueling method for supplying fuel to hydraulic fracturing equipment40US 9,371,831 B22016