E21B 19/004
Supporting a riser from a drilling or production platform
Official title: {supporting a riser from a drilling or production platform}
E21B19/004 (Supporting a riser from a drilling or production platform) appears on 603 US grants and 552 published applications in this corpus.
Search patents in E21B- Granted patents
- 603
- Published applications
- 552
- Assignees
- 256
- Inventors
- 965
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 9 | 0 |
| 1985 | 6 | 0 |
| 1986 | 9 | 0 |
| 1987 | 7 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 9 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 11 | 5 |
| 2002 | 16 | 13 |
| 2003 | 12 | 16 |
| 2004 | 18 | 19 |
| 2005 | 9 | 11 |
| 2006 | 10 | 10 |
| 2007 | 7 | 11 |
| 2008 | 12 | 11 |
| 2009 | 6 | 7 |
| 2010 | 4 | 11 |
| 2011 | 11 | 30 |
| 2012 | 11 | 27 |
| 2013 | 20 | 30 |
| 2014 | 20 | 38 |
| 2015 | 41 | 45 |
| 2016 | 46 | 47 |
| 2017 | 38 | 28 |
| 2018 | 40 | 46 |
| 2019 | 43 | 38 |
| 2020 | 25 | 28 |
| 2021 | 20 | 22 |
| 2022 | 20 | 16 |
| 2023 | 16 | 11 |
| 2024 | 14 | 12 |
| 2025 | 10 | 6 |
| 2026 | 9 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Connector assembly for emergency decoupling of a subsea end fitting of a movable subsea structure29 Sep 2026US 12,747,653 B2S3N Ventus Ltd
- Heave compensator enabling active heave counteraction15 Sep 2026US 12,735,302 B2Ernst-B. Johansen AS
- Well control system and method of use8 Sep 2026US 12,729,592 B2Deep Blue Oil & Gas Limited
- Mobile offshore production and processing unitutilizing produced natural gas generating power, hydrogen, carbon, and/or hydrocarbon liquids2 Jun 2026US 12,644,063 B2Modular MOPU, LLC
- Riser suspension device with movement limiter21 Apr 2026US 12,607,076 B2Enhanced Drilling AS
- Multi-purpose robot end effector for riser running process activities24 Sep 2026US 2026/0286790 A1Grant Prideco, lnc.
- Drill bushing retention17 Sep 2026US 2026/0275819 A1Caterpillar Global Mining Equipment LLC
- Mobile offshore production and processing unit utilizing produced natural gas generating power, hydrogen, carbon, and/or hydrocarbon liquids3 Sep 2026US 2026/0258312 A1Modular MOPU, LLC
- A release adapter for an end-fitting and a subsea connector assembly23 Jul 2026US 2026/0210194 A1S3N Ventus Ltd
- Installation of subsea risers16 Jul 2026US 2026/0201755 A1Subsea 7 Norway AS
Most cited
By later US patents
- Fluid assist bearing for telescopic joint of a RISER system144US 6,017,168 AABB Vetco Gray Inc. · 2000
- Upper marine riser package97US 4,712,620 AVetco Gray Inc. · 1987
- Method and system for return of drilling fluid from a sealed marine riser to a floating drilling rig while drilling93US 6,913,092 B2Weatherford/Lamb, Inc. · 2005
- Method and apparatus for tensioning tubular members92US 6,516,887 B2Cooper Cameron Corporation · 2003
- Rotating control device docking station88US 7,926,593 B2Weatherford/Lamb, Inc. · 2011