E21B 33/1243
With inflatable sleeves
Official title: {with inflatable sleeves}
E21B33/1243 (With inflatable sleeves) appears on 300 US grants and 200 published applications in this corpus.
Search patents in E21B- Granted patents
- 300
- Published applications
- 200
- Assignees
- 111
- Inventors
- 529
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 6 | 0 |
| 1984 | 8 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 16 | 0 |
| 1994 | 9 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 7 | 1 |
| 2002 | 3 | 5 |
| 2003 | 4 | 5 |
| 2004 | 6 | 8 |
| 2005 | 5 | 5 |
| 2006 | 5 | 2 |
| 2007 | 8 | 0 |
| 2008 | 2 | 6 |
| 2009 | 1 | 7 |
| 2010 | 3 | 7 |
| 2011 | 4 | 4 |
| 2012 | 5 | 9 |
| 2013 | 1 | 11 |
| 2014 | 6 | 10 |
| 2015 | 5 | 15 |
| 2016 | 12 | 10 |
| 2017 | 12 | 12 |
| 2018 | 4 | 9 |
| 2019 | 11 | 14 |
| 2020 | 16 | 10 |
| 2021 | 16 | 8 |
| 2022 | 4 | 10 |
| 2023 | 10 | 10 |
| 2024 | 6 | 8 |
| 2025 | 21 | 9 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Annular barrier21 Apr 2026US 12,607,089 B2Welltec Manufacturing Center Completions ApS
- Systems and methods for determining deformation of a tool string7 Apr 2026US 12,595,732 B2Schlumberger Technology Corporation
- Sealing assembly employing a deployable spacer17 Feb 2026US 12,553,308 B2Halliburton Energy Services.Inc.
- Air developed packer testing system10 Feb 2026US 12,546,219 B2Youngquist Brothers, LLC
- Annular barrier16 Dec 2025US 12,497,853 B2Welltec Manufacturing Center Completions ApS
- Systems and methods for determining deformation of a tool string13 Aug 2026US 2026/0235027 A1Schlumberger Technology Corporation
- Downhle packer assembly having an auto-retraction mechanism16 Jul 2026US 2026/0201772 A1Schlumberger Technology Corporation
- Measuring inflatable packer expansion and wellbore deformation26 Mar 2026US 2026/0085605 A1Schlumberger Technology Corporation
- Downhole packer assembly12 Mar 2026US 2026/0071512 A1Welltec A/S
- Systems and methods for measurement of formation elastic moduli with a borehole dual packer apparatus8 Jan 2026US 2026/0009330 A1Schlumberger Technology Corporation
Most cited
By later US patents
- Technique and apparatus for selective multi-zone vertical and/or horizontal completions239US 5,337,808 ANatural Reserves Group, Inc. · 1994
- Focused formation fluid sampling probe198US 6,301,959 B1Halliburton Energy Services.Inc. · 2001
- Drainhole well completion188US 4,714,117 AAtlantic Richfield Company · 1987
- Formation isolation and testing apparatus and method172US 5,803,186 ABaker Hughes Incorporated · 1998
- Apparatus and method for performing imaging and downhole operations at a work site in wellbores165US 6,041,860 ABaker Hughes Incorporated · 2000