E21B 1/04
Devices for reversing the movement of the rod or cable at the
Official title: Devices for reversing the movement of the rod or cable at the surface
E21B1/04 (Devices for reversing the movement of the rod or cable at the) appears on 9 US grants and 6 published applications in this corpus.
Search patents in E21B- Granted patents
- 9
- Published applications
- 6
- Assignees
- 8
- Inventors
- 17
- Latest grant
- 27 Feb 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 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 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 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 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 2 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Adapters for drilled, uncompleted wells27 Feb 2024US 11,913,313 B2Bestway Oilfield, Inc.
- Automatic reversing mechanism for a rock drill16 Aug 2022US 11,415,186 B2
- Device and method for generating percussive pulses or vibrations for a construction machine4 Aug 2020US 10,730,075 B2EURODRILL GmbH
- Ram boring device10 Apr 2018US 9,938,769 B2TRACTO-TECHNIK GmbH & Co. KG
- High speed precision guide device for creating holes for piles or other support members24 Oct 2017US 9,797,199 B1
- Adapters for Drilled, Uncompleted Wells21 Apr 2022US 2022/0120167 A1Bestway Oilfield, Inc.
- Automatic Reversing Mechanism for a Rock Drill22 Oct 2020US 2020/0332843 A1Augspurger Komm Engineering, Inc.
- Device and method for generating percussive pulses or vibrations for a construction machine20 Dec 2018US 2018/0361432 A1EURODRILL GmbH
- Ram boring device10 Mar 2016US 2016/0069135 A1TRACTO-TECHNIK GmbH & Co. KG
- Impact device and method of dismounting the same14 May 2015US 2015/0129269 A1Sandvik Mining and Construction Oy
Most cited
By later US patents
- Automatic drive hammer system17US 4,405,020 ACentral Mine Equipment Company · 1983
- Reverse percussion device5US 5,413,186 AReedrill, Inc. · 1995
- Reverse percussion device3US 5,634,524 AReedrill, Inc. · 1997
- High speed precision guide device for creating holes for piles or other support members2US 9,677,340 B12017
- Device and method for generating percussive pulses or vibrations for a construction machine1US 10,730,075 B2EURODRILL GmbH · 2020