E21B 7/124
With underwater tool drive prime mover
Official title: with underwater tool drive prime mover, e.g. portable drilling rigs for use on underwater floors
E21B7/124 (With underwater tool drive prime mover) appears on 106 US grants and 88 published applications in this corpus.
Search patents in E21B- Granted patents
- 106
- Published applications
- 88
- Assignees
- 77
- Inventors
- 258
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 0 |
| 2003 | 0 | 3 |
| 2004 | 1 | 2 |
| 2005 | 1 | 2 |
| 2006 | 2 | 1 |
| 2007 | 1 | 3 |
| 2008 | 2 | 4 |
| 2009 | 2 | 6 |
| 2010 | 5 | 5 |
| 2011 | 3 | 2 |
| 2012 | 1 | 2 |
| 2013 | 0 | 7 |
| 2014 | 6 | 0 |
| 2015 | 4 | 9 |
| 2016 | 4 | 3 |
| 2017 | 4 | 3 |
| 2018 | 2 | 3 |
| 2019 | 2 | 4 |
| 2020 | 1 | 6 |
| 2021 | 5 | 4 |
| 2022 | 6 | 6 |
| 2023 | 5 | 3 |
| 2024 | 6 | 2 |
| 2025 | 1 | 2 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fasteners for an underwater drilling assembly18 Aug 2026US 12,709,366 B2Resolve Marine Group, Inc.
- Vehicle for installing anchors in an underwater substrate2 Jun 2026US 12,643,642 B2Other Lab, LLC
- Well drilling device for undersea in-situ exploitation of natural gas hydrate26 May 2026US 12,637,926 B2Guangzhou Institute of Energy Conversion
- Frame for an underwater drilling assembly5 May 2026US 12,617,508 B2Resolve Marine Group, Inc.
- Waste cartridge for an underwater drilling assembly28 Apr 2026US 12,612,139 B2Resolve Marine Group, Inc.
- Air-bleed assembly for an underwater drilling assembly25 Jun 2026US 2026/0176927 A1Resolve Marine Group, Inc.
- Frame for an underwater drilling assembly8 Jan 2026US 2026/0008527 A1Resolve Marine Group, Inc.
- Fasteners for an underwater drilling assembly8 Jan 2026US 2026/0008528 A1Resolve Marine Group, Inc.
- Latchable flange for an underwater drilling assembly8 Jan 2026US 2026/0008529 A1Resolve Marine Group, Inc.
- Waste cartridge for an underwater drilling assembly8 Jan 2026US 2026/0008530 A1Resolve Marine Group, Inc.
Most cited
By later US patents
- Subsea intervention system, method and components thereof70US 7,165,619 B2Varco I/P, Inc. · 2007
- Method and apparatus for setting an underwater drilling system65US 4,759,413 ADrilex Systems, Inc. · 1988
- Flexpower deep well drill62US 3,934,660 A1976
- Subsea pumping system and method for deepwater drilling56US 6,216,799 B1Shell Offshore Inc. · 2001
- Method and apparatus for installing marine silos47US 4,744,698 A1988