E21B 47/07
Temperature
E21B47/07 (Temperature) appears on 1,306 US grants and 1,518 published applications in this corpus.
Search patents in E21B- Granted patents
- 1,306
- Published applications
- 1,518
- Assignees
- 411
- Inventors
- 2,810
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 8 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 9 | 3 |
| 2002 | 4 | 13 |
| 2003 | 9 | 18 |
| 2004 | 12 | 13 |
| 2005 | 8 | 12 |
| 2006 | 17 | 19 |
| 2007 | 10 | 14 |
| 2008 | 10 | 15 |
| 2009 | 10 | 15 |
| 2010 | 11 | 7 |
| 2011 | 10 | 19 |
| 2012 | 10 | 22 |
| 2013 | 13 | 26 |
| 2014 | 17 | 48 |
| 2015 | 25 | 78 |
| 2016 | 38 | 115 |
| 2017 | 63 | 153 |
| 2018 | 86 | 141 |
| 2019 | 127 | 152 |
| 2020 | 124 | 127 |
| 2021 | 136 | 136 |
| 2022 | 135 | 111 |
| 2023 | 126 | 91 |
| 2024 | 92 | 79 |
| 2025 | 68 | 63 |
| 2026 | 51 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Safety valve, well system, and method employing a temperature sensor29 Sep 2026US 12,747,648 B2Halliburton Energy Services.Inc.
- Subsea pumping and booster system22 Sep 2026US 12,742,373 B2Baker Hughes Energy Technology UK Limited
- Downhole fluid separator in re-entry multilateral well15 Sep 2026US 12,735,971 B2Halliburton Energy Services.Inc.
- Machine logic multi-phase metering using distributed acoustic sensing data8 Sep 2026US 12,729,985 B2ConocoPhillips Company
- Method for determining the heat in place for a geothermal system with horizontal wells25 Aug 2026US 12,717,064 B2Fervo Energy Company
- Downhole sensing based on time domain reflectometry using resistance and capacitance coupling8 Oct 2026US 2026/0309026 A1Halliburton Energy Services.Inc.
- Downhole flow monitoring and evaluation using distributed acoustic sensing and acoustic noise logging1 Oct 2026US 2026/0298078 A1Halliburton Energy Services.Inc.
- Closed loop control of flowback activities1 Oct 2026US 2026/0300585 A1Schlumberger Technology Corporation
- Integrated system for viscosity reduction in heavy oil wells with artificial lift through controlled heating using variable frequency drives10 Sep 2026US 2026/0266162 A1Magneta, LLC
- Method for designing construction parameters of nitrogen foam-carried gravel packing in high-loss horizontal wells20 Aug 2026US 2026/0244803 A1China University of Petroleum (East China)
Most cited
By later US patents
- Drilling systems with sensors for determining properties of drilling fluid downhole402US 6,176,323 B1Baker Hughes Incorporated · 2001
- Thermal processes for subsurface formations335US 7,121,342 B2Shell Oil Company · 2006
- Control of heat injection based on temperature and in-situ stress measurement321US 6,102,122 AShell Oil Company · 2000
- Mini-well temperature profiling process311US 4,616,705 AShell Oil Company · 1986
- In situ thermal processing of a relatively permeable formation while controlling pressure306US 7,096,942 B1Shell Oil Company · 2006