E21B 17/0853
Connections between sections of riser provided with auxiliary lines
Official title: {Connections between sections of riser provided with auxiliary lines, e.g. kill and choke lines}
E21B17/0853 (Connections between sections of riser provided with auxiliary lines) appears on 135 US grants and 106 published applications in this corpus.
Search patents in E21B- Granted patents
- 135
- Published applications
- 106
- Assignees
- 74
- Inventors
- 221
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 2 |
| 2003 | 2 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 6 |
| 2008 | 4 | 3 |
| 2009 | 0 | 4 |
| 2010 | 3 | 2 |
| 2011 | 4 | 9 |
| 2012 | 2 | 2 |
| 2013 | 7 | 6 |
| 2014 | 5 | 8 |
| 2015 | 8 | 6 |
| 2016 | 8 | 12 |
| 2017 | 11 | 7 |
| 2018 | 6 | 8 |
| 2019 | 5 | 6 |
| 2020 | 9 | 7 |
| 2021 | 6 | 3 |
| 2022 | 6 | 3 |
| 2023 | 5 | 5 |
| 2024 | 3 | 2 |
| 2025 | 1 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Well control system and method of use8 Sep 2026US 12,729,592 B2Deep Blue Oil & Gas Limited
- Hands-free gooseneck and hands-free gooseneck flow spool3 Jun 2025US 12,320,208 B2Grant Prideco, L.P.
- Gooseneck connector system28 May 2024US 11,993,987 B2Schlumberger Technology Corporation
- Drape hose quick connect for managed pressure drilling14 May 2024US 11,982,134 B2Schlumberger Technology Corporation
- Riser collet connector systems and methods5 Mar 2024US 11,920,422 B2Schlumberger Technology Corporation
- Multi-purpose robot end effector for riser running process activities24 Sep 2026US 2026/0286790 A1Grant Prideco, lnc.
- Rapid Separation Conduit28 May 2026US 2026/0146505 A1Hess Corporation
- Hands-free gooseneck and hands-free gooseneck flow spool1 Aug 2024US 2024/0254842 A1Grant Prideco, L.P.
- Control/Monitoring of Internal Equipment in a Riser Assembly20 Jun 2024US 2024/0200412 A1Dril-Quip, Inc.
- Drape hose quick connect for managed pressure drilling24 Aug 2023US 2023/0265725 A1Schlumberger Technology Corporation
Most cited
By later US patents
- Single connector for shunt conduits on well tool94US 5,390,966 AMobil Oil Corporation · 1995
- Riser connector71US 5,634,671 ADril-Quip, Inc. · 1997
- Marine riser conduit section coupling means66US 4,183,562 ARegan Offshore International, Inc. · 1980
- Marine riser57US 6,401,825 B1Petroleum Equipment Supply Engineering Company Limited · 2002
- Riser connector54US 4,043,575 AThe Rucker Company · 1977