E21B 47/001
Survey of boreholes or wells: for underwater installation
Official title: for underwater installation
E21B47/001 (Survey of boreholes or wells: for underwater installation) appears on 255 US grants and 263 published applications in this corpus.
Search patents in E21B- Granted patents
- 255
- Published applications
- 263
- Assignees
- 145
- Inventors
- 628
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 2 |
| 2002 | 4 | 5 |
| 2003 | 2 | 4 |
| 2004 | 2 | 2 |
| 2005 | 2 | 3 |
| 2006 | 3 | 4 |
| 2007 | 5 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 3 |
| 2010 | 0 | 4 |
| 2011 | 2 | 11 |
| 2012 | 3 | 11 |
| 2013 | 13 | 20 |
| 2014 | 13 | 15 |
| 2015 | 10 | 22 |
| 2016 | 16 | 16 |
| 2017 | 19 | 25 |
| 2018 | 17 | 26 |
| 2019 | 17 | 10 |
| 2020 | 9 | 7 |
| 2021 | 9 | 21 |
| 2022 | 14 | 10 |
| 2023 | 17 | 12 |
| 2024 | 11 | 15 |
| 2025 | 12 | 8 |
| 2026 | 11 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid diverter8 Sep 2026US 12,729,622 B2Sentinel Subsea Ltd
- Downhole trickle charge device, apparatus, and method1 Sep 2026US 12,723,508 B2A.O. International II, Inc.
- Systems and methods for underwater flow analysis11 Aug 2026US 12,705,879 B2CoVar, LLC
- Modular subsea control system4 Aug 2026US 12,698,690 B1OneSubsea IP UK Limited
- Hybrid seabed seismic acquisition geometry using a combination of nodes and autonomous underwater vehicles30 Jun 2026US 12,669,628 B2Saudi Arabian Oil Company
- Wellhead fatigue damage estimation using probabilistic generative ai models1 Oct 2026US 2026/0298047 A1Chevron U.S.A.Inc.
- System and method for barrier testing injection xmas tree24 Sep 2026US 2026/0286840 A1
- Subsea well test fluid reinjection5 Mar 2026US 2026/0063028 A1OneSubsea IP UK Limited
- Downhole Trickle Charge Device, Apparatus, and Method1 Jan 2026US 2026/0002438 A1A.O. International II, Inc.
- System and Process for Subsea Fiberoptic Logging of a Well18 Sep 2025US 2025/0290406 A1Trendsetter Engineering, Inc.
Most cited
By later US patents
- Hyperspectral imaging methods and apparatus for non-invasive diagnosis of tissue for cancer239US 5,782,770 AScience Applications International Corporation · 1998
- Downhole production well control system and method208US 5,732,776 ABaker Hughes Incorporated · 1998
- Method and apparatus for the remote control and monitoring of production wells168US 5,706,896 ABaker Hughes Incorporated · 1998
- Production well telemetry system and method158US 5,941,307 ABaker Hughes Incorporated · 1999
- Production well telemetry system and method141US 6,464,011 B2Baker Hughes Incorporated · 2002