E21B 7/16
Applying separate balls or pellets by the pressure of the drill, so-called
Official title: Applying separate balls or pellets by the pressure of the drill, so-called shot-drilling
E21B7/16 (Applying separate balls or pellets by the pressure of the drill, so-called) appears on 22 US grants and 18 published applications in this corpus.
Search patents in E21B- Granted patents
- 22
- Published applications
- 18
- Assignees
- 13
- Inventors
- 52
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 2 |
| 2011 | 2 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 3 |
| 2019 | 0 | 1 |
| 2020 | 2 | 1 |
| 2021 | 1 | 0 |
| 2022 | 2 | 2 |
| 2023 | 3 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and systems for adaptive non-contact / contact boring28 Apr 2026US 12,612,824 B2Phoenix Boring, Inc.
- Projectile drilling system8 Aug 2023US 11,719,047 B2Hypersciences, Inc.
- System for generation of thermal energy13 Jun 2023US 11,674,388 B1Hypersciences, Inc.
- Methods and systems for adaptive non-contact / contact boring21 Mar 2023US 11,608,687 B2ArcByt, Inc.
- Projectile drilling systems and methods6 Sep 2022US 11,434,695 B2Hypersciences, Inc.
- Methods and systems for adaptive non-contact / contact boring21 Mar 2024US 2024/0093590 A1ArcByt, Inc.
- Projectile Drilling Systems and Methods13 Jul 2023US 2023/0220732 A1Hypersciences, Inc.
- Methods and systems for adaptive non-contact / contact boring8 Dec 2022US 2022/0389763 A1ArcByt, Inc.
- Projectile drilling system6 Oct 2022US 2022/0316277 A1Hypersciences, Inc.
- Boring assembly and associated boring method5 Nov 2020US 2020/0347679 A1Framatome
Most cited
By later US patents
- Abrasive containing fluid jet drilling apparatus and process117US 4,534,427 A1985
- Multiple lateral hydraulic drilling apparatus and method77US 6,206,112 B1Petrolphysics Partners LP · 2001
- Formation cutting method and system74US 6,386,300 B1Curlett Family Limited Partnership · 2002
- Formation cutting method and system52US 6,581,700 B2Curlett Family Limited Partnership · 2003
- Soft excavator49US 5,212,891 AThe Charles Machine Works, Inc. · 1993