E21B 43/103
Of expandable casings, screens, liners, or the like
Official title: {of expandable casings, screens, liners, or the like}
E21B43/103 (Of expandable casings, screens, liners, or the like) appears on 1,481 US grants and 1,632 published applications in this corpus.
Search patents in E21B- Granted patents
- 1,481
- Published applications
- 1,632
- Assignees
- 233
- Inventors
- 1,563
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 8 | 0 |
| 1999 | 9 | 0 |
| 2000 | 20 | 0 |
| 2001 | 24 | 10 |
| 2002 | 35 | 73 |
| 2003 | 57 | 110 |
| 2004 | 82 | 170 |
| 2005 | 62 | 147 |
| 2006 | 128 | 82 |
| 2007 | 102 | 101 |
| 2008 | 84 | 81 |
| 2009 | 58 | 54 |
| 2010 | 63 | 73 |
| 2011 | 45 | 46 |
| 2012 | 44 | 58 |
| 2013 | 39 | 67 |
| 2014 | 44 | 51 |
| 2015 | 60 | 56 |
| 2016 | 50 | 57 |
| 2017 | 47 | 41 |
| 2018 | 47 | 56 |
| 2019 | 48 | 41 |
| 2020 | 61 | 48 |
| 2021 | 39 | 53 |
| 2022 | 59 | 41 |
| 2023 | 38 | 44 |
| 2024 | 34 | 22 |
| 2025 | 38 | 31 |
| 2026 | 20 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of creating an annular zonal isolation seal in a downhole annulus6 Oct 2026US 12,753,679 B2Shell USA, Inc.
- System for restoring the mechanical integrity of small-diameter casing or production tubing in hydrocarbon reservoir wells6 Oct 2026US 12,753,680 B2Instituto Mexicano Del Petroleo
- Modular anti-rotation drilling systems and methods actuated by fluid pressure29 Sep 2026US 12,747,654 B1National Technology & Engineering Solutions of Sandia, LLC
- Shape memory foam screen in conjunction with shrouded over deformable chambers for wellbore compliance29 Sep 2026US 12,747,655 B1Halliburton Energy Services.Inc.
- Liner hanger having expandable sleeve15 Sep 2026US 12,735,959 B1Halliburton Energy Services.Inc.
- Bi-directional Running Tool for Expandable Liner Hanger8 Oct 2026US 2026/0309007 A1Halliburton Energy Services.Inc.
- Liner hanger setting tool including a split ring cone, a well system and a method1 Oct 2026US 2026/0298052 A1Halliburton Energy Services.Inc.
- Liner hanger setting tool including first and second cone assembly portions, a well system and a method1 Oct 2026US 2026/0298053 A1Halliburton Energy Services.Inc.
- Liner hanger setting tool including a spiral split ring cone, a well system and a method1 Oct 2026US 2026/0298054 A1Halliburton Energy Services.Inc.
- High performance expandable liner hanger using hydrostatic assist by chemically modifying liner hanger environment17 Sep 2026US 2026/0275182 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Method of completing an uncased section of a borehole576US 5,366,012 AShell Oil Company · 1994
- Expandable tubing for a well bore hole and method of expanding443US 6,354,373 B1Schlumberger Technology Corporation · 2002
- Method of creating a wellbore in an underground formation356US 5,348,095 AShell Oil Company · 1994
- Method of creating a casing in a borehole325US 5,667,011 AShell Oil Company · 1997
- Method and apparatus for hanging tubulars in wells321US 6,098,717 AFormlock, Inc. · 2000