E21B 17/08
Casing joints
E21B17/08 (Casing joints) appears on 696 US grants and 568 published applications in this corpus.
Search patents in E21B- Granted patents
- 696
- Published applications
- 568
- Assignees
- 312
- Inventors
- 1,131
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 10 | 0 |
| 1979 | 1 | 0 |
| 1980 | 8 | 0 |
| 1981 | 9 | 0 |
| 1982 | 3 | 0 |
| 1983 | 8 | 0 |
| 1984 | 12 | 0 |
| 1985 | 11 | 0 |
| 1986 | 9 | 0 |
| 1987 | 12 | 0 |
| 1988 | 5 | 0 |
| 1989 | 10 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 9 | 0 |
| 1993 | 6 | 0 |
| 1994 | 6 | 0 |
| 1995 | 11 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 10 | 0 |
| 1999 | 9 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 2 |
| 2002 | 13 | 20 |
| 2003 | 15 | 22 |
| 2004 | 12 | 21 |
| 2005 | 11 | 23 |
| 2006 | 19 | 11 |
| 2007 | 15 | 15 |
| 2008 | 18 | 20 |
| 2009 | 5 | 12 |
| 2010 | 18 | 20 |
| 2011 | 15 | 27 |
| 2012 | 12 | 24 |
| 2013 | 16 | 22 |
| 2014 | 25 | 32 |
| 2015 | 25 | 27 |
| 2016 | 26 | 33 |
| 2017 | 33 | 26 |
| 2018 | 24 | 34 |
| 2019 | 21 | 21 |
| 2020 | 33 | 34 |
| 2021 | 29 | 34 |
| 2022 | 38 | 22 |
| 2023 | 35 | 27 |
| 2024 | 18 | 17 |
| 2025 | 23 | 10 |
| 2026 | 7 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Well control system and method of use8 Sep 2026US 12,729,592 B2Deep Blue Oil & Gas Limited
- Tubular for downhole use2 Jun 2026US 12,644,367 B2Pro-Pipe Service & Sales Ltd.
- Connector for subsea pipelines and risers, and repair of a pipeline or riser utilizing the connector5 May 2026US 12,618,504 B2
- High performance shoulder ring for pipe and other tubular goods in the oil and gas industry17 Mar 2026US 12,578,040 B2
- Wellhead systems and methods10 Mar 2026US 12,571,275 B2Cactus Wellhead, LLC
- Lateral clamping module for rigid risers24 Sep 2026US 2026/0286788 A1Petroleo Brasileiro S.A. - Petrobras
- Multi-purpose robot end effector for riser running process activities24 Sep 2026US 2026/0286790 A1Grant Prideco, lnc.
- An extensible tubing and a method of facilitating transfer of fluid27 Aug 2026US 2026/0251026 A1MH Tech AS
- Connector assemblies and processes for using same27 Aug 2026US 2026/0251236 A1Koil Energy Solutions, Inc.
- Wellhead attachment system30 Jul 2026US 2026/0218583 A1Vault Pressure Control LLC
Most cited
By later US patents
- Well completions with expandable casing portions290US 5,325,923 AHalliburton Company · 1994
- Expandable joint connector281US 6,409,175 B1Grant Prideco, L.P. · 2002
- Tubular patch240US 5,785,120 AWeatherford/Lamb, Inc. · 1998
- Connector assembly for an expandable slotted pipe213US 5,924,745 APetroline Wellsystems Limited · 1999
- Connector assembly for an expandable slotted pipe185US 5,984,568 AShell Oil Company · 1999