E21B 17/0465
Characterised by radially inserted locking elements
Official title: {characterised by radially inserted locking elements}
E21B17/0465 (Characterised by radially inserted locking elements) appears on 150 US grants and 142 published applications in this corpus.
Search patents in E21B- Granted patents
- 150
- Published applications
- 142
- Assignees
- 93
- Inventors
- 293
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 2 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 5 |
| 2009 | 1 | 3 |
| 2010 | 3 | 4 |
| 2011 | 3 | 2 |
| 2012 | 0 | 0 |
| 2013 | 2 | 3 |
| 2014 | 1 | 10 |
| 2015 | 8 | 7 |
| 2016 | 6 | 10 |
| 2017 | 7 | 5 |
| 2018 | 10 | 18 |
| 2019 | 9 | 8 |
| 2020 | 12 | 4 |
| 2021 | 6 | 11 |
| 2022 | 8 | 11 |
| 2023 | 13 | 10 |
| 2024 | 13 | 13 |
| 2025 | 10 | 3 |
| 2026 | 7 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Connector assembly for emergency decoupling of a subsea end fitting of a movable subsea structure29 Sep 2026US 12,747,653 B2S3N Ventus Ltd
- Underground directional drilling apparatus22 Sep 2026US 12,742,358 B1Melfred Borzall, Inc.
- Latch coupling including unique axial alignment slots15 Sep 2026US 12,735,952 B2Halliburton Energy Services.Inc.
- Downhole tool including a bore sensor25 Aug 2026US 12,716,306 B2Halliburton Energy Services.Inc.
- Downhole tool including a locking dog23 Jun 2026US 12,662,891 B2Halliburton Energy Services.Inc.
- Underground directional drilling apparatus24 Sep 2026US 2026/0286786 A1Melfred Borzall, Inc.
- A connector assembly for emergency decoupling of a subsea end fitting of a movable subsea structure16 Jul 2026US 2026/0201777 A1S3N Ventus Ltd
- A coupling assembly16 Jul 2026US 2026/0201994 A1Torsion Tool Company AS
- Connector assembly with tandem-acting locking assemblies16 Apr 2026US 2026/0103948 A1FMC Technologies, Inc.
- Flexible coupling arrangement for directional drilling system2 Apr 2026US 2026/0092504 A1
Most cited
By later US patents
- Expandable tubing connector for expandable tubing138US 6,322,109 B1Weatherford/Lamb, Inc. · 2001
- Roof drill bit with radial domed PCD inserts127US 5,535,839 A1996
- Blowout preventer isolation test tool63US 5,163,514 AABB Vetco Gray Inc. · 1992
- Signal operated tools for milling, drilling, and/or fishing operations52US 8,991,489 B2Weatherford Technology Holdings, LLC · 2015
- Rotatable cutting bit assembly48US 5,400,861 AKennametal Inc. · 1995