F04B 47/145
With fluid means
Official title: {with fluid means}
F04B47/145 (With fluid means) appears on 20 US grants and 10 published applications in this corpus.
Search patents in F04B- Granted patents
- 20
- Published applications
- 10
- Assignees
- 12
- Inventors
- 23
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 2 | 2 |
| 2019 | 2 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 3 |
| 2022 | 1 | 0 |
| 2023 | 3 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Hydraulic pumping system29 Jul 2025US 12,372,080 B2
- Decoupled long stroke pump19 Sep 2023US 11,761,317 B2Halliburton Energy Services.Inc.
- Pump jack system16 May 2023US 11,649,706 B2Poc Hydraulic Technologies, LLC
- Hydraulic pumping system21 Mar 2023US 11,608,824 B2
- Pump jack with counterbalance12 Apr 2022US 11,299,941 B2Vertx Artificial Lift Inc.
- Hydraulic pumping system8 Feb 2024US 2024/0044326 A1
- Decoupled long stroke pump16 Dec 2021US 2021/0388705 A1Halliburton Energy Services.Inc.
- Pump jack system4 Feb 2021US 2021/0032966 A1Poc Hydraulic Technologies, LLC
- Pump jack with counterbalance7 Jan 2021US 2021/0003124 A1Vertx Artificial Lift Inc.
- Hydraulic pumping system16 Jul 2020US 2020/0224652 A1
Most cited
By later US patents
- Pump jack device29US 4,114,375 ACanadian Foremost Ltd. · 1978
- Pneumatic beam pumping unit23US 3,971,213 A1976
- Oil well pumping unit20US 4,512,149 A1985
- Hydraulic-pneumatic stroke reversal system for pumping units, and its application in preferred embodiments14US 5,536,150 A1996
- Double-acting, deep-well fluid extraction pump13US 5,797,452 A1998