F04B 9/1273
With actuation in the other direction by gravity
Official title: {with actuation in the other direction by gravity}
F04B9/1273 (With actuation in the other direction by gravity) appears on 5 US grants and 5 published applications in this corpus.
Search patents in F04B- Granted patents
- 5
- Published applications
- 5
- Assignees
- 2
- Inventors
- 5
- Latest grant
- 24 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 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 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 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 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Gas-lift system with paired controllers24 Oct 2023US 11,795,794 B2Epic Lift Systems
- Pneumatic pump control system6 Dec 2022US 11,519,428 B2
- Gas-lift system with paired controllers14 Dec 2021US 11,199,081 B2
- Controlled pneumatic well pumping system, and method for optimizing pump stroke speed1 Oct 2019US 10,428,627 B2Encline Artificial Lift Technologies LLC
- Apparatus for harnessing and storage of wind energy9 Nov 1982US 4,358,250 A
- Gas-lift system with paired controllers3 Mar 2022US 2022/0065092 A1Epic Lift Systems
- Pneumatic pump control system1 Jul 2021US 2021/0199109 A1
- Gas-lift system with paired controllers20 Dec 2018US 2018/0363442 A1Epic Lift Systems
- Plunger to Form a Liquid Ring to Seal Against Gas Bypass31 Aug 2017US 2017/0247989 A1
- Controlled Pneumatic Well Pumping System, And Method For Optimizing Pump Stroke Speed16 Mar 2017US 2017/0074079 A1Encline Artificial Lift Technologies LLC
Most cited
By later US patents
- Apparatus for harnessing and storage of wind energy70US 4,358,250 A1982
- Controlled pneumatic well pumping system, and method for optimizing pump stroke speed3US 10,428,627 B2Encline Artificial Lift Technologies LLC · 2019
- Gas-lift system with paired controllers1US 11,199,081 B22021
- Gas-lift system with paired controllers1US 11,795,794 B2Epic Lift Systems · 2023