E21B 19/166
Arrangements of torque limiters or torque indicators
Official title: {Arrangements of torque limiters or torque indicators}
E21B19/166 (Arrangements of torque limiters or torque indicators) appears on 154 US grants and 150 published applications in this corpus.
Search patents in E21B- Granted patents
- 154
- Published applications
- 150
- Assignees
- 74
- Inventors
- 285
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 2 |
| 2002 | 1 | 1 |
| 2003 | 0 | 3 |
| 2004 | 3 | 3 |
| 2005 | 1 | 5 |
| 2006 | 3 | 1 |
| 2007 | 2 | 11 |
| 2008 | 6 | 4 |
| 2009 | 4 | 3 |
| 2010 | 6 | 6 |
| 2011 | 2 | 4 |
| 2012 | 5 | 7 |
| 2013 | 7 | 2 |
| 2014 | 5 | 6 |
| 2015 | 3 | 4 |
| 2016 | 1 | 6 |
| 2017 | 5 | 7 |
| 2018 | 4 | 11 |
| 2019 | 10 | 16 |
| 2020 | 20 | 7 |
| 2021 | 5 | 14 |
| 2022 | 6 | 6 |
| 2023 | 8 | 5 |
| 2024 | 7 | 7 |
| 2025 | 4 | 1 |
| 2026 | 1 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Telescoping torque reaction track device25 Aug 2026US 12,716,298 B2
- Torque slider tong assembly21 Oct 2025US 12,447,587 B2
- Robotic system for making or breaking a riser7 Oct 2025US 12,435,582 B2Stebbins Innovations, LLC
- Low torque warning test and preset system24 Jun 2025US 12,338,696 B2Hawk Industries, Inc.
- Method and system for detecting a loosened joint of a drill string6 May 2025US 12,291,932 B2Epiroc Rock Drills Aktiebolag
- Backup wrench for power tong1 Oct 2026US 2026/0298038 A1Metalmecanica S.A.
- Tong manipulator system13 Aug 2026US 2026/0235001 A1Columbia Industries, Inc.
- Threaded connection evaluation remote from a job location4 Jun 2026US 2026/0153004 A1
- Systems and methods for a tubular mounting and dismounting apparatus14 May 2026US 2026/0132690 A1
- Robot end effector for spinning and torquing bolts in riser flange14 May 2026US 2026/0132691 A1Grant Prideco, lnc.
Most cited
By later US patents
- Monitoring torque in tubular goods118US 4,738,145 ATubular Make-Up Specialists, Inc. · 1988
- Method and apparatus for analysis of torque applied to a joint114US 4,592,125 ASalvesen Drilling Limited · 1986
- Methods and apparatus for handling and drilling with tubulars or casing105US 7,325,610 B2Weatherford/Lamb, Inc. · 2008
- Torque position make-up of tubular connections103US 4,962,579 AExxon Production Research Company · 1990
- System to control a motor for the assembly or dis-assembly of two members96US 5,245,265 AFrank's International, LLC · 1993