E21B 47/01
Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines
Official title: Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
E21B47/01 (Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines) appears on 2,224 US grants and 2,156 published applications in this corpus.
Search patents in E21B- Granted patents
- 2,224
- Published applications
- 2,156
- Assignees
- 573
- Inventors
- 3,694
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 9 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 10 | 0 |
| 1986 | 7 | 0 |
| 1987 | 11 | 0 |
| 1988 | 10 | 0 |
| 1989 | 22 | 0 |
| 1990 | 18 | 0 |
| 1991 | 10 | 0 |
| 1992 | 23 | 0 |
| 1993 | 23 | 0 |
| 1994 | 23 | 0 |
| 1995 | 13 | 0 |
| 1996 | 19 | 0 |
| 1997 | 20 | 0 |
| 1998 | 27 | 0 |
| 1999 | 29 | 0 |
| 2000 | 25 | 0 |
| 2001 | 39 | 15 |
| 2002 | 35 | 46 |
| 2003 | 46 | 44 |
| 2004 | 43 | 57 |
| 2005 | 41 | 62 |
| 2006 | 43 | 51 |
| 2007 | 50 | 54 |
| 2008 | 35 | 48 |
| 2009 | 35 | 36 |
| 2010 | 39 | 61 |
| 2011 | 34 | 89 |
| 2012 | 47 | 82 |
| 2013 | 50 | 85 |
| 2014 | 65 | 114 |
| 2015 | 79 | 137 |
| 2016 | 103 | 117 |
| 2017 | 98 | 127 |
| 2018 | 124 | 137 |
| 2019 | 138 | 161 |
| 2020 | 139 | 110 |
| 2021 | 134 | 119 |
| 2022 | 116 | 102 |
| 2023 | 110 | 108 |
| 2024 | 102 | 86 |
| 2025 | 96 | 68 |
| 2026 | 55 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Devices, systems, and methods for identifying a radial position of an expandable tool29 Sep 2026US 12,747,663 B1Schlumberger Technology Corporation
- Transducers including laser etched substrates29 Sep 2026US 12,751,228 B2Baker Hughes Oilfield Operations LLC
- Underground directional drilling apparatus22 Sep 2026US 12,742,358 B1Melfred Borzall, Inc.
- Downhole sensor apparatus, system, and related methods22 Sep 2026US 12,742,382 B2Baker Hughes Oilfield Operations LLC
- Dynamic load resistant drilling system15 Sep 2026US 12,735,974 B2Schlumberger Technology Corporation
- Systems and methods for deploying and retrieving magnetically coupled temporary wireline fiber for broadside wave detection8 Oct 2026US 2026/0309022 A1
- Temperature management of downhole tools8 Oct 2026US 2026/0309023 A1Eavor Technologies Inc.
- Pressure vessel antennas and containers for electronic circuitry1 Oct 2026US 2026/0302588 A1
- Underground directional drilling apparatus24 Sep 2026US 2026/0286786 A1Melfred Borzall, Inc.
- Systems and methods for multi-offset seismic profiling17 Sep 2026US 2026/0275859 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Method and apparatus for testing, completion and/or maintaining wellbores using a sensor device420US 5,829,520 ABaker Hughes Incorporated · 1998
- Well control systems employing downhole network334US 5,959,547 ABaker Hughes Incorporated · 1999
- Control of heat injection based on temperature and in-situ stress measurement321US 6,102,122 AShell Oil Company · 2000
- Short hop communication link for downhole MWD system294US 5,160,925 ADevelco, Inc. · 1992
- Steerable rotary drilling systems281US 5,265,682 ACamco Drilling Group Limited · 1993