E21B 17/05
Swivel joints
E21B17/05 (Swivel joints) appears on 324 US grants and 299 published applications in this corpus.
Search patents in E21B- Granted patents
- 324
- Published applications
- 299
- Assignees
- 145
- Inventors
- 501
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 0 |
| 2003 | 1 | 6 |
| 2004 | 3 | 8 |
| 2005 | 4 | 5 |
| 2006 | 5 | 6 |
| 2007 | 7 | 9 |
| 2008 | 5 | 10 |
| 2009 | 6 | 2 |
| 2010 | 9 | 6 |
| 2011 | 2 | 8 |
| 2012 | 7 | 7 |
| 2013 | 8 | 11 |
| 2014 | 8 | 18 |
| 2015 | 11 | 16 |
| 2016 | 14 | 27 |
| 2017 | 17 | 23 |
| 2018 | 19 | 21 |
| 2019 | 31 | 24 |
| 2020 | 19 | 10 |
| 2021 | 16 | 10 |
| 2022 | 16 | 21 |
| 2023 | 17 | 17 |
| 2024 | 22 | 16 |
| 2025 | 13 | 13 |
| 2026 | 10 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Drill head for use with microtunneling apparatus15 Sep 2026US 12,735,946 B2OptionX Holdings Pty Ltd
- Drill head for use with microtunneling apparatus1 Sep 2026US 12,723,470 B2OptionX Holdings Pty Ltd
- Downhole tool, method, and system11 Aug 2026US 12,704,040 B2Baker Hughes Oilfield Operations LLC
- Swivel4 Aug 2026US 12,698,800 B2Rotojar Innovations Limited
- Drilling apparatus and related methods12 May 2026US 12,624,599 B2Helmerich & Payne Technologies, LLC
- Coiled tubing systems and methods including separate coiled tubing strings27 Aug 2026US 2026/0251021 A1EOG Resources, Inc.
- A drill head for use with microtunneling apparatus30 Apr 2026US 2026/0117595 A1OptionX Holdings Pty Ltd
- Swivel seal assembly and alignment method12 Mar 2026US 2026/0071682 A1Deublin Company
- Articulable couplings for downhole tools5 Mar 2026US 2026/0063003 A1G&H Diversified Manufacturing LP
- Downhole tool, method, and system22 Jan 2026US 2026/0022616 A1Baker Hughes Oilfield Operations LLC
Most cited
By later US patents
- Flex joint incorporating enclosed conductors153US 4,842,059 AHalliburton Logging Services, Inc. · 1989
- Locking swivel device116US 6,378,630 B1Canadian Downhole Drill Systems Inc. · 2002
- Method of performing downhole functions110US 6,354,374 B1Schlumberger Technology Corporation · 2002
- Top drive swivel apparatus and method104US 7,007,753 B2Mako Rentals, Inc. · 2006
- Apparatus and method for orienting a downhole tool in a horizontal or deviated well77US 5,964,294 ASchlumberger Technology Corporation · 1999