E21B 19/167
Using a wrench adapted to engage a non circular section of pipe
Official title: {using a wrench adapted to engage a non circular section of pipe, e.g. a section with flats or splines}
E21B19/167 (Using a wrench adapted to engage a non circular section of pipe) appears on 43 US grants and 24 published applications in this corpus.
Search patents in E21B- Granted patents
- 43
- Published applications
- 24
- Assignees
- 30
- Inventors
- 83
- Latest grant
- 4 Apr 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 2 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 2 | 3 |
| 2011 | 3 | 4 |
| 2012 | 1 | 1 |
| 2013 | 3 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 4 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 3 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Torque wrench engagement mechanism4 Apr 2023US 11,619,102 B2Caterpillar Global Mining Equipment LLC
- Circumferential displacement sucker rod tong14 Jul 2020US 10,711,542 B2Automated Rig Technologies Ltd.
- System and method for installing or removing a seal sub from a riser2 Jun 2020US 10,669,791 B2Cameron International Corporation
- Spinning torque wrench11 Feb 2020US 10,557,321 B2Drillform Technical Services Ltd.
- Jig for coupling or uncoupling drill string sections with detachable couplings and related methods28 May 2019US 10,301,891 B2Evolution Engineering Inc.
- Backup wrench for power tong1 Oct 2026US 2026/0298038 A1Metalmecanica S.A.
- Torque wrench engagement mechanism27 May 2021US 2021/0156208 A1Caterpillar Global Mining Equipment LLC
- Method for accelerated break out of connected multi-segment tubulars25 Jun 2020US 2020/0199950 A1
- Spinning torque wrench22 Feb 2018US 2018/0051527 A1MiVa Engineering Ltd.
- Circumferential displacement sucker rod tong2 Nov 2017US 2017/0314351 A1Automated Rig Technologies Ltd.
Most cited
By later US patents
- Tong apparatus for threadedly connecting and disconnecting elongated members87US 4,357,843 APeck-O-Matic, Inc. · 1982
- Sucker rod tool62US 6,374,706 B12002
- Torque-turn system for a three-element sucker rod joint50US 6,212,763 B12001
- Adapter29US 4,844,171 A1989
- Ratchet and hydraulic seal assembly for rotating hollow shafts16US 4,520,879 ADeep Rock Manufacturing Company, Inc. · 1985