E21B 33/127
With inflatable sleeve
Official title: with inflatable sleeve (E21B33/122, E21B33/124 take precedence)
E21B33/127 (With inflatable sleeve) appears on 921 US grants and 698 published applications in this corpus.
Search patents in E21B- Granted patents
- 921
- Published applications
- 698
- Assignees
- 231
- Inventors
- 1,288
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 9 | 0 |
| 1982 | 9 | 0 |
| 1983 | 20 | 0 |
| 1984 | 7 | 0 |
| 1985 | 6 | 0 |
| 1986 | 9 | 0 |
| 1987 | 13 | 0 |
| 1988 | 8 | 0 |
| 1989 | 13 | 0 |
| 1990 | 21 | 0 |
| 1991 | 12 | 0 |
| 1992 | 9 | 0 |
| 1993 | 23 | 0 |
| 1994 | 25 | 0 |
| 1995 | 20 | 0 |
| 1996 | 14 | 0 |
| 1997 | 12 | 0 |
| 1998 | 19 | 0 |
| 1999 | 10 | 0 |
| 2000 | 18 | 0 |
| 2001 | 26 | 6 |
| 2002 | 11 | 9 |
| 2003 | 11 | 16 |
| 2004 | 11 | 18 |
| 2005 | 14 | 18 |
| 2006 | 10 | 19 |
| 2007 | 13 | 25 |
| 2008 | 16 | 17 |
| 2009 | 12 | 23 |
| 2010 | 15 | 31 |
| 2011 | 8 | 17 |
| 2012 | 17 | 18 |
| 2013 | 21 | 35 |
| 2014 | 16 | 38 |
| 2015 | 20 | 36 |
| 2016 | 32 | 41 |
| 2017 | 30 | 43 |
| 2018 | 28 | 37 |
| 2019 | 50 | 54 |
| 2020 | 68 | 40 |
| 2021 | 37 | 33 |
| 2022 | 32 | 39 |
| 2023 | 41 | 31 |
| 2024 | 26 | 22 |
| 2025 | 34 | 17 |
| 2026 | 13 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Measuring inflatable packer expansion and wellbore deformation1 Sep 2026US 12,723,503 B2Schlumberger Technology Corporation
- Protective layer over swellable compound25 Aug 2026US 12,716,316 B2Halliburton Energy Services.Inc.
- Plugging assemblies for plugging cased wellbores11 Aug 2026US 12,704,036 B2G&H Diversified Manufacturing LP
- Inflatable bore hole plug14 Jul 2026US 12,680,406 B2Mti Group Pty Ltd
- Downhole packer assembly having an auto-retraction mechanism14 Jul 2026US 12,680,414 B1Schlumberger Technology Corporation
- Hydrogen swellable fillers for surface and underground fluid isolation barriers1 Oct 2026US 2026/0297416 A1Schlumberger Technology Corporation
- Plugging assemblies for plugging cased wellbores1 Oct 2026US 2026/0298044 A1G&H Diversified Manufacturing LP
- Inflatable down hole bag24 Sep 2026US 2026/0286806 A1Mti Group Pty Ltd
- Expanding metal for plug and abandonment20 Aug 2026US 2026/0243144 A1Halliburton Energy Services.Inc.
- Downhole patch13 Aug 2026US 2026/0235011 A1Welltec A/S
Most cited
By later US patents
- Well control systems employing downhole network334US 5,959,547 ABaker Hughes Incorporated · 1999
- Expandable wellbore junction301US 6,135,208 AHalliburton Energy Services.Inc. · 2000
- Sealing well casings248US 5,833,001 ASchlumberger Technology Corporation · 1998
- Monitoring of downhole parameters and tools utilizing fiber optics244US 6,281,489 B1Baker Hughes Incorporated · 2001
- Method for controlling production wells having permanent downhole formation evaluation sensors241US 5,597,042 ABaker Hughes Incorporated · 1997