E21B 43/0107
Connecting of flow lines to offshore structures
Official title: {Connecting of flow lines to offshore structures (E21B43/013 takes precedence)}
E21B43/0107 (Connecting of flow lines to offshore structures) appears on 253 US grants and 201 published applications in this corpus.
Search patents in E21B- Granted patents
- 253
- Published applications
- 201
- Assignees
- 129
- Inventors
- 501
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 8 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 8 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 2 |
| 2002 | 4 | 2 |
| 2003 | 4 | 1 |
| 2004 | 2 | 2 |
| 2005 | 0 | 5 |
| 2006 | 2 | 3 |
| 2007 | 2 | 4 |
| 2008 | 6 | 6 |
| 2009 | 1 | 2 |
| 2010 | 4 | 5 |
| 2011 | 4 | 10 |
| 2012 | 6 | 11 |
| 2013 | 3 | 5 |
| 2014 | 7 | 11 |
| 2015 | 15 | 14 |
| 2016 | 16 | 6 |
| 2017 | 6 | 11 |
| 2018 | 8 | 16 |
| 2019 | 17 | 21 |
| 2020 | 18 | 8 |
| 2021 | 9 | 9 |
| 2022 | 7 | 14 |
| 2023 | 10 | 9 |
| 2024 | 10 | 9 |
| 2025 | 13 | 6 |
| 2026 | 9 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Connector assembly for emergency decoupling of a subsea end fitting of a movable subsea structure29 Sep 2026US 12,747,653 B2S3N Ventus Ltd
- Hydraulic actuation system for diverless bell mouth18 Aug 2026US 12,710,113 B2Petroleo Brasileiro S.A. - Petrobras
- Systems and methods for subsea fluid handling14 Jul 2026US 12,680,424 B2Onesubsea, LLC
- Umbilical10 Mar 2026US 12,571,286 B2Onesubsea, LLC
- Multi-purpose robot end effector for riser running process activities24 Sep 2026US 2026/0286790 A1Grant Prideco, lnc.
- Connector assemblies and processes for using same27 Aug 2026US 2026/0251236 A1Koil Energy Solutions, Inc.
- Offshore fluid handling23 Jul 2026US 2026/0210190 A1Aker Solutions Subsea AS
- A hang-off device for an end fitting of a subsea tubular16 Jul 2026US 2026/0201764 A1S3N Ventus Ltd
- A connector assembly for emergency decoupling of a subsea end fitting of a movable subsea structure16 Jul 2026US 2026/0201777 A1S3N Ventus Ltd
Most cited
By later US patents
- Pipe connector apparatus having gripping and sealing means99US 4,142,739 ACompagnie Maritime d'Expertise, S.A. · 1979
- Marine production riser system and method of installing same54US 4,182,584 AMobil Oil Corporation · 1980
- Method and apparatus for connecting an underwater flexible riser to a structure on the surface54US 5,947,642 APetroleo Brasileiro S.A. - Petrobras · 1999
- Breakaway pipe coupling with automatically closed valves46US 4,361,165 AExxon Research & Engineering Co. · 1982
- Device for limiting the bending radius of a flexible duct37US 6,220,303 B1Coflexip · 2001