E21B 33/0415
Rotating or floating support for tubing or casing hanger
Official title: {rotating or floating support for tubing or casing hanger}
E21B33/0415 (Rotating or floating support for tubing or casing hanger) appears on 166 US grants and 118 published applications in this corpus.
Search patents in E21B- Granted patents
- 166
- Published applications
- 118
- Assignees
- 70
- Inventors
- 262
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 7 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 2 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 4 |
| 2011 | 0 | 2 |
| 2012 | 1 | 3 |
| 2013 | 1 | 4 |
| 2014 | 5 | 5 |
| 2015 | 4 | 7 |
| 2016 | 5 | 7 |
| 2017 | 8 | 4 |
| 2018 | 10 | 9 |
| 2019 | 6 | 4 |
| 2020 | 12 | 4 |
| 2021 | 10 | 13 |
| 2022 | 11 | 8 |
| 2023 | 12 | 9 |
| 2024 | 14 | 13 |
| 2025 | 15 | 9 |
| 2026 | 9 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tubing hanger orientation system18 Aug 2026US 12,709,957 B1Hosie Subsea Ingenuity & Evolution LLC
- High torque actuated tubing hanger orientation11 Aug 2026US 12,704,037 B2FMC Kongsberg Subsea AS
- Rigidized seal assembly using automated space-out mechanism19 May 2026US 12,631,083 B2Innovex International, Inc.
- Wellhead system and method of operating a wellhead system12 May 2026US 12,624,609 B2Onesubsea, LLC
- Systems and methods with seal elements shaped to efficiently cement casing and seal a hanger in a wellhead housing21 Apr 2026US 12,607,084 B2Cameron International Corporation
- Rigidized Seal Assembly Using Automated Space-Out Mechanism16 Jul 2026US 2026/0201767 A1Innovex International, Inc.
- Insert for dual string hanger assembly11 Jun 2026US 2026/0160144 A1
- High torque actuated tubing hanger orientation9 Apr 2026US 2026/0098452 A1FMC Kongsberg Subsea AS
- Casing string rotation systems and methods19 Mar 2026US 2026/0078652 A1Cactus Wellhead, LLC
- Short wellhead system for a mineral extraction system18 Dec 2025US 2025/0382850 A1Cameron International Corporation
Most cited
By later US patents
- Method of operating a downhole clutch assembly66US 5,836,396 A1998
- Lift-through head and swivel65US 4,995,457 AHalliburton Company · 1991
- Temporary support device for oil well tubes and method of use60US 9,140,105 B22015
- Flowhead and method53US 7,040,408 B2Worldwide Oilfield Machine, Inc. · 2006
- Rotatable reciprocating collar for borehole casing52US 4,678,031 A1987