E21B 43/086
Screens with preformed openings
Official title: {Screens with preformed openings, e.g. slotted liners (comprising porous materials E21B43/082)}
E21B43/086 (Screens with preformed openings) appears on 337 US grants and 299 published applications in this corpus.
Search patents in E21B- Granted patents
- 337
- Published applications
- 299
- Assignees
- 123
- Inventors
- 565
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 11 | 2 |
| 2002 | 8 | 16 |
| 2003 | 11 | 13 |
| 2004 | 18 | 17 |
| 2005 | 9 | 20 |
| 2006 | 11 | 6 |
| 2007 | 17 | 6 |
| 2008 | 10 | 5 |
| 2009 | 3 | 11 |
| 2010 | 9 | 6 |
| 2011 | 5 | 6 |
| 2012 | 4 | 9 |
| 2013 | 6 | 11 |
| 2014 | 9 | 14 |
| 2015 | 3 | 19 |
| 2016 | 13 | 18 |
| 2017 | 13 | 22 |
| 2018 | 17 | 18 |
| 2019 | 19 | 19 |
| 2020 | 20 | 18 |
| 2021 | 17 | 12 |
| 2022 | 13 | 16 |
| 2023 | 11 | 4 |
| 2024 | 7 | 7 |
| 2025 | 5 | 1 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Water well submersible pump filter29 Sep 2026US 12,747,741 B2FES Labs, LLC
- Screen assembly having permeable handling area11 Aug 2026US 12,704,030 B2Weatherford Technology Holdings, LLC
- Fluid conditioning and/or treatment system10 Mar 2026US 12,571,269 B2Mason Specialty Tools, LLC
- Separating device and use of a separating device13 Jan 2026US 12,523,135 B23M Innovative Properties Company
- Mechanical hold down with internal strainer19 Aug 2025US 12,392,226 B2
- Pack screen and bypass connector configured to connect to pack screen23 Jul 2026US 2026/0210213 A1China Petroleum & Chemical Corporation
- System and method for drilling slant wells18 Jun 2026US 2026/0168214 A1
- Fluid Conditioning and/or Treatment System18 Jun 2026US 2026/0168338 A1Mason Specialty Tools, LLC
- Water well submersible pump filter1 May 2025US 2025/0137467 A1FES Labs, LLC
- Apparatus and methods for conditioning well fluid from an underground hydrocarbon reservoir26 Dec 2024US 2024/0426192 A1Synergetic Oil Tools, 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 and apparatus for testing, completion and/or maintaining wellbores using a sensor device420US 5,829,520 ABaker Hughes Incorporated · 1998
- Deformable well screen320US 5,901,789 AShell Oil Company · 1999
- In situ soil decontamination method and apparatus226US 5,011,329 AHrubetz Exploration Company · 1991