E21B 41/0071
Adaptation of flares
Official title: {Adaptation of flares, e.g. arrangements of flares in offshore installations (flares of waste gases or noxious gases F23G7/08)}
E21B41/0071 (Adaptation of flares) appears on 82 US grants and 50 published applications in this corpus.
Search patents in E21B- Granted patents
- 82
- Published applications
- 50
- Assignees
- 48
- Inventors
- 157
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 3 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 2 | 5 |
| 2016 | 0 | 5 |
| 2017 | 1 | 0 |
| 2018 | 4 | 0 |
| 2019 | 2 | 2 |
| 2020 | 2 | 0 |
| 2021 | 4 | 5 |
| 2022 | 3 | 6 |
| 2023 | 4 | 7 |
| 2024 | 11 | 7 |
| 2025 | 5 | 3 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Flaring optimization responsive to wind conditions28 Jul 2026US 12,693,011 B2Schlumberger Technology Corporation
- Reducing CO2 emissions during a wellbore clean-up23 Jun 2026US 12,662,911 B2Schlumberger Technology Corporation
- Gas skid and systems for mine gas flaring operations9 Dec 2025US 12,492,814 B1Perennial Energy, Inc.
- Optimizing purge gas flows through a flare gas network23 Sep 2025US 12,422,139 B2Saudi Arabian Oil Company
- Wellsite greenhouse gas reduction and hydrogen production system and method2 Sep 2025US 12,404,749 B2
- Method and system for electricity generation using associated gas25 Jun 2026US 2026/0180399 A1China Petroleum & Chemical Corporation
- Drilling unit with selective carbon dioxide and hydrocarbon drilling fluid venting system21 May 2026US 2026/0139559 A1
- Gas flow rate flaring framework5 Feb 2026US 2026/0038271 A1Schlumberger Technology Corporation
- Determining hydrocarbon effluent combustion efficiency8 Jan 2026US 2026/0009727 A1Schlumberger Technology Corporation
- Zero flaring operations using non-metallic pipes4 Sep 2025US 2025/0277433 A1
Most cited
By later US patents
- Oil well rate metering method39US 3,975,941 AThe Raymond Lee Organization, Inc. · 1976
- Method and system for incineration and detoxification of semiliquid waste32US 4,989,522 ASharpe Environmental Services · 1991
- Device for burning gas from a production plant for oil or gas28US 5,810,578 A1998
- Portable safety flare for combustion of waste gases27US 4,255,120 A1981
- Fluidic seal26US 4,092,908 ACombustion Unlimited Incorporated · 1978