E21B 34/063
Valve or closure with destructible element
Official title: {Valve or closure with destructible element, e.g. frangible disc (E21B34/103 takes precedence)}
E21B34/063 (Valve or closure with destructible element) appears on 1,101 US grants and 1,059 published applications in this corpus.
Search patents in E21B- Granted patents
- 1,101
- Published applications
- 1,059
- Assignees
- 291
- Inventors
- 1,515
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 6 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 8 | 0 |
| 1983 | 6 | 0 |
| 1984 | 10 | 0 |
| 1985 | 7 | 0 |
| 1986 | 8 | 0 |
| 1987 | 8 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 12 | 0 |
| 1991 | 8 | 0 |
| 1992 | 2 | 0 |
| 1993 | 9 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 7 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 10 | 0 |
| 2000 | 11 | 0 |
| 2001 | 11 | 4 |
| 2002 | 9 | 7 |
| 2003 | 8 | 11 |
| 2004 | 14 | 10 |
| 2005 | 4 | 5 |
| 2006 | 6 | 6 |
| 2007 | 5 | 15 |
| 2008 | 6 | 8 |
| 2009 | 10 | 24 |
| 2010 | 17 | 11 |
| 2011 | 12 | 37 |
| 2012 | 17 | 30 |
| 2013 | 24 | 43 |
| 2014 | 26 | 52 |
| 2015 | 44 | 77 |
| 2016 | 45 | 72 |
| 2017 | 60 | 72 |
| 2018 | 59 | 79 |
| 2019 | 78 | 82 |
| 2020 | 87 | 84 |
| 2021 | 89 | 91 |
| 2022 | 79 | 73 |
| 2023 | 77 | 65 |
| 2024 | 79 | 42 |
| 2025 | 43 | 38 |
| 2026 | 33 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Depth activated downhole adjustable bend assemblies22 Sep 2026US 12,742,360 B2National Oilwell Varco, L. P.
- Well mender22 Sep 2026US 12,742,365 B2
- Convertible autofill float equipment having poppet valve and interlock15 Sep 2026US 12,735,956 B2Weatherford Technology Holdings, LLC
- Extended chemical treatment in subterranean wells25 Aug 2026US 12,716,308 B2Odessa Separator, Inc.
- Downhole tool and method of use25 Aug 2026US 12,716,317 B2The WellBoss Company, LLC
- System for delayed dissolution of downhole balls8 Oct 2026US 2026/0309002 A1Tenax Energy Systems, LLC
- Hydraulic fracturing method using lightweight proppant particles to reduce erosion and improve conductivity8 Oct 2026US 2026/0309016 A1ExxonMobil Technology and Engineering Company
- Configurable programmable check valve for well operations1 Oct 2026US 2026/0298049 A1Saudi Arabian Oil Company
- Perforation system and method17 Sep 2026US 2026/0275834 A1Baker Hughes Oilfield Operations LLC
- Apparatus and methods for operating downhole tools10 Sep 2026US 2026/0266151 A1Wellbore Integrity Solutions LLC
Most cited
By later US patents
- Temporary plug system266US 5,479,986 AHalliburton Company · 1996
- Method and apparatus for providing controlled force transference to a wellbore tool200US 5,343,963 A1994
- Frac system without intervention194US 7,325,617 B2Baker Hughes Incorporated · 2008
- Well completions using casing valves191US 4,949,788 AHalliburton Company · 1990
- One trip backwash/sand control system with extendable washpipe isolation162US 5,413,180 AHalliburton Company · 1995