E21B 43/118
Characterised by lowering in vertical position and subsequent tilting to operating position
Official title: characterised by lowering in vertical position and subsequent tilting to operating position
E21B43/118 (Characterised by lowering in vertical position and subsequent tilting to operating position) appears on 29 US grants and 26 published applications in this corpus.
Search patents in E21B- Granted patents
- 29
- Published applications
- 26
- Assignees
- 11
- Inventors
- 59
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 3 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 3 |
| 2017 | 0 | 2 |
| 2018 | 1 | 1 |
| 2019 | 2 | 3 |
| 2020 | 2 | 1 |
| 2021 | 1 | 0 |
| 2022 | 3 | 0 |
| 2023 | 0 | 2 |
| 2024 | 3 | 4 |
| 2025 | 3 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Discrete perforating device10 Feb 2026US 12,546,195 B1Schlumberger Technology Corporation
- Perforating gun with self-orienting perforating charges30 Sep 2025US 12,428,938 B2Halliburton Energy Services.Inc.
- Penetrator and dispensers and methods of use22 Jul 2025US 12,366,151 B2Defiant Engineering, LLC
- Fiber-safe single-run perforating gun28 Jan 2025US 12,209,486 B1Halliburton Energy Services.Inc.
- Orientation detecting switch and perforating gun24 Dec 2024US 12,173,588 B2Hunting Titan, Inc.
- Self orienting, switch module operated perforating tool2 Jul 2026US 2026/0185425 A1G&H Diversified Manufacturing LP
- Orientable perforating gun with orienting bearing assembly and method of using same5 Dec 2024US 2024/0401441 A1GR Energy Services Management, LP
- Penetrator and dispensers and methods of use29 Aug 2024US 2024/0287886 A1Defiant Engineering, LLC
- Penetrator and dispensers and methods of use29 Feb 2024US 2024/0068346 A1Defiant Engineering, LLC
- Orientation Detecting Switch and Perforating Gun11 Jan 2024US 2024/0011373 A1Hunting Titan, Inc.
Most cited
By later US patents
- Apparatus and method for perforating a subterranean formation104US 6,755,249 B2Halliburton Energy Services.Inc. · 2004
- Apparatus for electromechanically connecting a plurality of guns for well perforation80US 10,352,136 B22019
- Perforating safety system and assembly61US 8,596,378 B2Halliburton Energy Services.Inc. · 2013
- Pivot gun having charges which slidingly engage a stationary detonating cord and apparatus for deploying the charges19US 5,095,801 ASchlumberger Technology Corporation · 1992
- Shaped charge assembly and method of damaging a target14US 7,779,760 B2Armaments Corporation of South Africa Limited · 2010