E21B 23/0414
Using explosives
Official title: {using explosives}
E21B23/0414 (Using explosives) appears on 152 US grants and 138 published applications in this corpus.
Search patents in E21B- Granted patents
- 152
- Published applications
- 138
- Assignees
- 61
- Inventors
- 247
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 7 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 2 |
| 2002 | 4 | 3 |
| 2003 | 2 | 3 |
| 2004 | 1 | 1 |
| 2005 | 1 | 3 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 3 |
| 2012 | 3 | 5 |
| 2013 | 3 | 3 |
| 2014 | 4 | 4 |
| 2015 | 3 | 6 |
| 2016 | 3 | 5 |
| 2017 | 5 | 2 |
| 2018 | 4 | 8 |
| 2019 | 7 | 9 |
| 2020 | 4 | 13 |
| 2021 | 11 | 13 |
| 2022 | 9 | 14 |
| 2023 | 16 | 8 |
| 2024 | 6 | 14 |
| 2025 | 15 | 9 |
| 2026 | 11 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of creating an annular zonal isolation seal in a downhole annulus6 Oct 2026US 12,753,679 B2Shell USA, Inc.
- Downhole system for conveying an explosive tool within a wellbore and reducing damage to other tools of the downhole system1 Sep 2026US 12,723,480 B2
- Wireline setting assembly21 Jul 2026US 12,687,079 B1Wellbore Solutions, Inc.
- Method and apparatus for setting downhole plugs and other objects in wellbores16 Jun 2026US 12,655,700 B2Grant Prideco, L.P.
- Dual-booster power charge26 May 2026US 12,637,918 B2DBK Industries, LLC
- Dual-Booster Power Charge24 Sep 2026US 2026/0286796 A1DBK Industries, LLC
- Sleeve assemblies and related completion systems and methods27 Aug 2026US 2026/0251036 A1Kobold Corporation
- Setting tool for actuating a tool in a wellbore30 Jul 2026US 2026/0218578 A1DynaEnergetics Europe GmbH
- Rapid Separation Conduit28 May 2026US 2026/0146505 A1Hess Corporation
- Systems and methods for using explosive expansion downhole tools to reduce amount of undesirable fluids in hydrocarbons produced via a wellbore14 May 2026US 2026/0132693 A1
Most cited
By later US patents
- Liner and reinforcing swage for conduit in a wellbore and method and apparatus for setting same241US 3,948,321 AGearhart-Owen Industries, Inc. · 1976
- Method and apparatus for providing controlled force transference to a wellbore tool200US 5,343,963 A1994
- Self powered downhole tool anchor172US 4,429,741 AChristensen, Inc. · 1984
- Perforating gun automatic release mechanism113US 4,776,393 ADresser Industries, Inc. · 1988
- Method and apparatus for improved communication in a wellbore utilizing acoustic signals107US 5,995,449 ABaker Hughes Incorporated · 1999