E21B 43/119
Details
Official title: Details, e.g. for locating perforating place or direction
E21B43/119 (Details) appears on 886 US grants and 841 published applications in this corpus.
Search patents in E21B- Granted patents
- 886
- Published applications
- 841
- Assignees
- 172
- Inventors
- 1,145
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 10 | 0 |
| 1985 | 14 | 0 |
| 1986 | 5 | 0 |
| 1987 | 11 | 0 |
| 1988 | 10 | 0 |
| 1989 | 8 | 0 |
| 1990 | 4 | 0 |
| 1991 | 8 | 0 |
| 1992 | 7 | 0 |
| 1993 | 3 | 0 |
| 1994 | 9 | 0 |
| 1995 | 10 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 7 | 0 |
| 2000 | 7 | 0 |
| 2001 | 10 | 1 |
| 2002 | 14 | 15 |
| 2003 | 12 | 14 |
| 2004 | 10 | 23 |
| 2005 | 13 | 25 |
| 2006 | 14 | 12 |
| 2007 | 16 | 17 |
| 2008 | 18 | 12 |
| 2009 | 7 | 24 |
| 2010 | 9 | 22 |
| 2011 | 16 | 20 |
| 2012 | 23 | 19 |
| 2013 | 22 | 35 |
| 2014 | 23 | 31 |
| 2015 | 18 | 31 |
| 2016 | 28 | 25 |
| 2017 | 25 | 32 |
| 2018 | 22 | 31 |
| 2019 | 38 | 55 |
| 2020 | 34 | 56 |
| 2021 | 55 | 65 |
| 2022 | 59 | 65 |
| 2023 | 67 | 52 |
| 2024 | 57 | 78 |
| 2025 | 89 | 53 |
| 2026 | 46 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Energy release in energetic perforating devices6 Oct 2026US 12,753,682 B1Halliburton Energy Services.Inc.
- Downhole perforating gun tube and components29 Sep 2026US 12,747,656 B1SWM International, LLC
- Electronic device and method for orientation-measuring device for downhole perforations22 Sep 2026US 12,742,372 B2Advanced Wireline Solutions, Inc.
- Perforating gun system15 Sep 2026US 12,735,961 B1Halliburton Energy Services.Inc.
- Perforator tool8 Sep 2026US 12,729,609 B2Wildcat Oil Tools, LLC
- Disposable perforation tool8 Oct 2026US 2026/0309008 A1Schlumberger Technology Corporation
- Composition and methods for inhibiting corrosion of metal during acidizing a wellbore in a subterranean formation for fracking24 Sep 2026US 2026/0286211 A1
- Pump down well stimulation24 Sep 2026US 2026/0286814 A1Torsch Inc.
- Switch module for wellbore perforating gun24 Sep 2026US 2026/0286815 A1G&H Diversified Manufacturing LP
- Fully automated perforating gun17 Sep 2026US 2026/0275835 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Methods of servicing a well bore using self-activating downhole tool183US 7,322,416 B2Halliburton Energy Services.Inc. · 2008
- Downhole tool with navigation system161US 7,363,967 B2Halliburton Energy Services.Inc. · 2008
- Apparatus for absorbing shock159US 4,817,710 AHalliburton Company · 1989
- Well completion method and apparatus158US 5,156,213 AHalliburton Company · 1992
- Selectable, internally oriented and/or integrally transportable explosive assemblies138US 9,689,223 B2Halliburton Energy Services.Inc. · 2017