E21B 47/024
Of devices in the borehole
Official title: of devices in the borehole (determining slope or direction of the borehole E21B47/022)
E21B47/024 (Of devices in the borehole) appears on 1,094 US grants and 1,144 published applications in this corpus.
Search patents in E21B- Granted patents
- 1,094
- Published applications
- 1,144
- Assignees
- 274
- Inventors
- 1,650
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 7 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 8 | 0 |
| 2001 | 10 | 3 |
| 2002 | 10 | 17 |
| 2003 | 15 | 15 |
| 2004 | 12 | 17 |
| 2005 | 21 | 17 |
| 2006 | 14 | 15 |
| 2007 | 19 | 19 |
| 2008 | 12 | 14 |
| 2009 | 9 | 22 |
| 2010 | 20 | 31 |
| 2011 | 13 | 24 |
| 2012 | 17 | 26 |
| 2013 | 20 | 35 |
| 2014 | 19 | 45 |
| 2015 | 32 | 53 |
| 2016 | 47 | 135 |
| 2017 | 69 | 103 |
| 2018 | 74 | 82 |
| 2019 | 98 | 88 |
| 2020 | 115 | 75 |
| 2021 | 92 | 68 |
| 2022 | 58 | 53 |
| 2023 | 62 | 48 |
| 2024 | 51 | 54 |
| 2025 | 58 | 50 |
| 2026 | 37 | 35 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus, system, and methods for coupling tools to drill rigs1 Sep 2026US 12,723,505 B2Veracio Ltd.
- Wireless telemetry system for horizontal directional drilling25 Aug 2026US 12,716,352 B2Underground Magnetics, Inc.
- Automatic steering instructions for directional motor drilling25 Aug 2026US RE51,013 E1Nabors Drilling Technologies USA, Inc.
- Method and system for enabling acquisition of borehole survey data and core orientation data18 Aug 2026US 12,709,955 B2Reflex Instruments Asia Pacific Pty Ltd
- Push the bit rotary steerable system11 Aug 2026US 12,704,023 B2D-Tech UK Ltd
- Systems and methods for multi-finger caliper tool1 Oct 2026US 2026/0298079 A1Schlumberger Technology Corporation
- Drilling tool face measuring apparatus and measuring method13 Aug 2026US 2026/0235025 A1China Petroleum & Chemical Corporation
- Wellbore drill deviation handling6 Aug 2026US 2026/0226821 A1Schlumberger Technology Corporation
- Rotary steerable system advisor with autonomous mode30 Jul 2026US 2026/0218600 A1Schlumberger Technology Corporation
- Horizontal Directional Drilling Guidence System23 Jul 2026US 2026/0210187 A1
Most cited
By later US patents
- Steerable rotary drilling systems281US 5,265,682 ACamco Drilling Group Limited · 1993
- Modulated bias units for steerable rotary drilling systems268US 5,553,678 ACamco International Inc. · 1996
- Locator device for continuously locating a dipole magnetic field transmitter and its method of operation244US 5,337,002 A1994
- Rotary steerable well drilling system utilizing sliding sleeve213US 6,158,529 ASchlumberger Technology Corporation · 2000
- Apparatus and method for orienting and setting a hydraulically-actuatable tool in a borehole180US 5,443,129 ASmith International, Inc. · 1995