E21B 17/043
With locking means
Official title: with locking means
E21B17/043 (With locking means) appears on 221 US grants and 190 published applications in this corpus.
Search patents in E21B- Granted patents
- 221
- Published applications
- 190
- Assignees
- 132
- Inventors
- 396
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 8 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 5 |
| 2004 | 1 | 2 |
| 2005 | 2 | 0 |
| 2006 | 1 | 2 |
| 2007 | 1 | 3 |
| 2008 | 1 | 2 |
| 2009 | 2 | 2 |
| 2010 | 1 | 3 |
| 2011 | 3 | 6 |
| 2012 | 3 | 3 |
| 2013 | 3 | 8 |
| 2014 | 5 | 11 |
| 2015 | 4 | 13 |
| 2016 | 5 | 16 |
| 2017 | 12 | 17 |
| 2018 | 14 | 19 |
| 2019 | 19 | 9 |
| 2020 | 18 | 8 |
| 2021 | 6 | 14 |
| 2022 | 13 | 10 |
| 2023 | 12 | 14 |
| 2024 | 11 | 8 |
| 2025 | 19 | 8 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tool string transportation device6 Oct 2026US 12,753,667 B2Petromac IP Limited
- Systems, methods and apparatus for downhole monitoring of production conditions using EM telemetry1 Sep 2026US 12,723,509 B2Geo Psi Pty Ltd
- Threaded joint with anti-unscrewing device25 Aug 2026US 12,716,299 B2Vallourec Oil and Gas France
- Threaded connection for exploration and production of a hydrocarbon well4 Aug 2026US 12,698,683 B2Tenaris Connections Limited
- Thread connector lock6 Jan 2026US 12,516,757 B2Frank's International, LLC
- Downhole tool including a retaining clamp assembly to keep a head member flange and base member flange engaged with one another30 Jul 2026US 2026/0218575 A1Halliburton Energy Services.Inc.
- Field redressable shear blocker for fuzion tools to eliminate the shear to release contingency23 Jul 2026US 2026/0210192 A1Halliburton Energy Services.Inc.
- A hang-off device for an end fitting of a subsea tubular16 Jul 2026US 2026/0201764 A1S3N Ventus Ltd
- Alignment sub with clamp lock mechanism16 Jul 2026US 2026/0201781 A1DynaEnergetics Europe GmbH
- Bop pipe connection system16 Jul 2026US 2026/0201985 A1Kim Co., Ltd.
Most cited
By later US patents
- Expandable tubing connector for expandable tubing138US 6,322,109 B1Weatherford/Lamb, Inc. · 2001
- Tubular threaded connector joint with separate interfering locking profile115US 5,044,676 AAbbvetco Gray Inc. · 1991
- Anti-rotation tubular connection for flowlines or the like110US 4,693,498 AMobil Oil Corporation · 1987
- Pipe connector100US 4,601,491 AVetco Offshore, Inc. · 1986
- Expandable locking thread joint100US 6,619,696 B2Baker Hughes Incorporated · 2003