E21B 41/005
Waste disposal systems
Official title: {Waste disposal systems}
E21B41/005 (Waste disposal systems) appears on 995 US grants and 1,022 published applications in this corpus.
Search patents in E21B- Granted patents
- 995
- Published applications
- 1,022
- Assignees
- 426
- Inventors
- 1,986
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 8 | 0 |
| 1980 | 8 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 16 | 0 |
| 1985 | 9 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 10 | 0 |
| 1990 | 4 | 0 |
| 1991 | 8 | 0 |
| 1992 | 19 | 0 |
| 1993 | 13 | 0 |
| 1994 | 19 | 0 |
| 1995 | 13 | 0 |
| 1996 | 13 | 0 |
| 1997 | 7 | 0 |
| 1998 | 13 | 0 |
| 1999 | 13 | 0 |
| 2000 | 12 | 0 |
| 2001 | 17 | 3 |
| 2002 | 13 | 89 |
| 2003 | 15 | 30 |
| 2004 | 56 | 18 |
| 2005 | 25 | 13 |
| 2006 | 21 | 18 |
| 2007 | 12 | 20 |
| 2008 | 9 | 37 |
| 2009 | 12 | 25 |
| 2010 | 28 | 35 |
| 2011 | 8 | 26 |
| 2012 | 28 | 31 |
| 2013 | 32 | 22 |
| 2014 | 22 | 25 |
| 2015 | 23 | 34 |
| 2016 | 13 | 21 |
| 2017 | 19 | 21 |
| 2018 | 27 | 22 |
| 2019 | 26 | 22 |
| 2020 | 26 | 40 |
| 2021 | 42 | 39 |
| 2022 | 28 | 50 |
| 2023 | 42 | 99 |
| 2024 | 66 | 108 |
| 2025 | 88 | 107 |
| 2026 | 65 | 67 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus for injecting carbon dioxide into underground, method for evaluating same, and method for producing same6 Oct 2026US 12,753,676 B2Kyushu University, National University Corporation
- Surface treatment compositions used for carbon sequestration, hydraulic fracturing and increasing oil production from a subterranean formation, and method of hydraulic fracturing29 Sep 2026US 12,747,386 B2Aculon, Inc.
- Systems and methods for determining reactivity indices for carbon dioxide sequestration29 Sep 2026US 12,747,651 B2Schlumberger Technology Corporation
- Caprock analysis methods and systems22 Sep 2026US 12,742,903 B2Saudi Arabian Oil Company
- Apparatus and method for CO2 microbubble flooding15 Sep 2026US 12,734,490 B2Dalian University of Technology
- Processes and systems to capture carbon dioxide8 Oct 2026US 2026/0309006 A1Arelac, Inc.
- Method Of Abating Carbon Dioxide And Hydrogen Sulfide1 Oct 2026US 2026/0295509 A1Barnard College
- Riser-less managed pressure drilling with subsea fluid handling1 Oct 2026US 2026/0298039 A1
- Optimizing co2 geosequestration with responsive tracers24 Sep 2026US 2026/0286812 A1Saudi Arabian Oil Company
- Pore volume uncertainty analysis for carbon capture and sequestration24 Sep 2026US 2026/0287774 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Process for recovering methane and/or sequestering fluids405US 6,412,559 B1Alberta Research Council · 2002
- In situ recovery from a kerogen and liquid hydrocarbon containing formation332US 7,011,154 B2Shell Oil Company · 2006
- In situ thermal processing of a hydrocarbon containing formation using a selected production well spacing311US 6,712,136 B2Shell Oil Company · 2004
- Disposal of produced formation fines during oil recovery300US 4,787,452 AMobil Oil Corporation · 1988
- Method for dumping and disposing of carbon dioxide gas and apparatus therefor300US 5,261,490 ANKK Corporation · 1993